Merge pull request #167 from Permissionless-Software-Foundation/ct-unstable

fix(waterfallValidateTxid): Skipping validateTxid3() if it throws an error

README.md

@@ -35,15 +35,15 @@ const BCHJS = require("@psf/bch-js")
 let bchjs = new BCHJS() // Defaults to BCHN network.
 
 // testnet
-bchjs = new BCHJS({ restURL: 'https://testnet3.fullstack.cash/v4/' })
+bchjs = new BCHJS({ restURL: 'https://testnet3.fullstack.cash/v5/' })
 ```
 
 This library is intended to be paired with
 the [bch-api](https://github.com/Permissionless-Software-Foundation/bch-api) REST API, and the infrastructure provided by [FullStack.cash](https://fullstack.cash). The `restURL` property can be changed to work with different Bitcoin Cash networks:
 
-- BCHN Mainnet REST API server: https://bchn.fullstack.cash/v4/
-- ABC Mainnet REST API server: https://abc.fullstack.cash/v4/
-- Testnet3 REST API server: https://testnet3.fullstack.cash/v4/
+- BCHN Mainnet REST API server: https://bchn.fullstack.cash/v5/
+- ABC Mainnet REST API server: https://abc.fullstack.cash/v5/
+- Testnet3 REST API server: https://testnet3.fullstack.cash/v5/
 - Check server status: https://metrics.fullstack.cash
 
 ### API Key
@@ -57,7 +57,7 @@ rate limits when interacting with the back end server. See [this article](https:
 ```
 const BCHJS = require("@psf/bch-js")
 let bchjs = new BCHJS({
-  restURL: 'https://bchn.fullstack.cash/v3/',
+  restURL: 'https://bchn.fullstack.cash/v5/',
   apiToken: 'eyJhbGciO...' // Your JWT token here.
 })
 ```

examples/README.md

@@ -1,3 +1,3 @@
-Examples have been moved to this repository:
+Examples have been moved to this repository
 
 https://github.com/Permissionless-Software-Foundation/bch-js-examples

package.json

@@ -4,22 +4,26 @@
   "description": "The FullStack.cash JavaScript library for Bitcoin Cash and SLP Tokens",
   "author": "Chris Troutner <chris.troutner@gmail.com>",
   "contributors": [
-    "Gabriel Cardona <gabriel@bitcoin.com>"
+    "Gabriel Cardona <gabriel@bitcoin.com>",
+    "Stoyan Zhekov <zh@zhware.net>"
   ],
   "main": "src/bch-js",
   "scripts": {
     "test": "nyc mocha --trace-warnings --unhandled-rejections=strict --timeout 30000 test/unit/",
     "test:integration": "npm run test:integration:bchn",
-    "test:integration:abc": "export RESTURL=https://abc.fullstack.cash/v4/ && export IS_USING_FREE_TIER=true && mocha --timeout 30000 test/integration/ && mocha --timeout 30000 test/integration/chains/abc/",
-    "test:integration:bchn": "export RESTURL=https://bchn.fullstack.cash/v4/ && export IS_USING_FREE_TIER=true && mocha --timeout 30000 test/integration/ && mocha --timeout 30000 test/integration/chains/bchn/",
+    "test:integration:nft": "export RESTURL=https://bchn.fullstack.cash/v5/ && export IS_USING_FREE_TIER=true && mocha --timeout 30000 -g '#nft1' test/integration/chains/bchn/slp.js",
+    "test:integration:abc": "export RESTURL=https://abc.fullstack.cash/v5/ && export IS_USING_FREE_TIER=true && mocha --timeout 30000 test/integration/ && mocha --timeout 30000 test/integration/chains/abc/",
+    "test:integration:bchn": "export RESTURL=https://bchn.fullstack.cash/v5/ && export IS_USING_FREE_TIER=true && mocha --timeout 30000 test/integration/ && mocha --timeout 30000 test/integration/chains/bchn/",
     "test:integration:testnet": "IS_USING_FREE_TIER=true mocha --timeout 30000 test/integration/chains/testnet/",
-    "test:integration:local:abc": "export RESTURL=http://localhost:3000/v4/ && mocha --timeout 30000 test/integration && mocha --timeout 30000 test/integration/chains/abc/",
-    "test:integration:local:bchn": "export RESTURL=http://localhost:3000/v4/ && mocha --timeout 30000 test/integration/ && mocha --timeout 30000 test/integration/chains/bchn/",
-    "test:integration:local:testnet": "RESTURL=http://localhost:4000/v4/ mocha --timeout 30000 test/integration/chains/testnet",
-    "test:temp": "export RESTURL=http://localhost:3000/v4/ && mocha --timeout 30000 -g '#hydrateUtxos' test/integration/",
-    "test:temp2": "mocha --timeout=30000 -g '#Util' test/unit/",
-    "test:temp3": "export RESTURL=https://bchn.fullstack.cash/v4/ && mocha --timeout 30000 -g '#hydrateUtxos' test/integration/",
-    "test:temp4": "export RESTURL=http://localhost:3000/v4/ && mocha --timeout 30000 -g '#decodeOpReturn' test/integration/",
+    "test:integration:local:abc": "export RESTURL=http://localhost:3000/v5/ && mocha --timeout 30000 test/integration && mocha --timeout 30000 test/integration/chains/abc/",
+    "test:integration:local:bchn": "export RESTURL=http://localhost:3000/v5/ && mocha --timeout 30000 test/integration/ && mocha --timeout 30000 test/integration/chains/bchn/",
+    "test:integration:local:testnet": "RESTURL=http://localhost:4000/v5/ mocha --timeout 30000 test/integration/chains/testnet",
+    "test:integration:decatur:bchn": "export RESTURL=http://192.168.0.36:3000/v5/ && mocha --timeout 30000 test/integration/",
+    "test:integration:temp:bchn": "export RESTURL=http://157.90.174.219:3000/v5/ && mocha --timeout 30000 test/integration/",
+    "test:temp": "export RESTURL=http://localhost:3000/v5/ && mocha --timeout 30000 -g '#Encryption' test/integration/",
+    "test:temp2": "mocha --timeout=30000 -g '#TransactionLib' test/unit/",
+    "test:temp3": "export RESTURL=https://bchn.fullstack.cash/v5/ && mocha --timeout 30000 -g '#DSProof' test/integration/chains/",
+    "test:temp4": "export RESTURL=http://localhost:3000/v5/ && mocha --timeout 30000 -g '#decodeOpReturn' test/integration/",
     "coverage": "nyc report --reporter=text-lcov | coveralls",
     "coverage:report": "nyc --reporter=html mocha --timeout 25000 test/unit/",
     "docs": "./node_modules/.bin/apidoc -i src/ -o docs",
@@ -33,7 +37,7 @@
   },
   "dependencies": {
     "@psf/bip21": "^2.0.1",
-    "@psf/bip32-utils": "^0.13.1",
+    "@psf/bip32-utils": "^1.0.0",
     "@psf/bitcoincash-ops": "^2.0.0",
     "@psf/bitcoincashjs-lib": "^4.0.2",
     "@psf/coininfo": "^4.0.0",

src/address.js

@@ -6,7 +6,7 @@ const coininfo = require('@psf/coininfo')
 class Address {
   constructor (config) {
     const tmp = {}
-    if (!config || !config.restURL) tmp.restURL = 'https://api.bchjs.cash/v4/'
+    if (!config || !config.restURL) tmp.restURL = 'https://api.bchjs.cash/v5/'
     else tmp.restURL = config.restURL
 
     this.restURL = tmp.restURL

src/bch-js.js

@@ -7,8 +7,8 @@
 */
 
 // bch-api mainnet.
-const DEFAULT_REST_API = 'https://api.fullstack.cash/v4/'
-// const DEFAULT_REST_API = "http://localhost:3000/v4/"
+const DEFAULT_REST_API = 'https://api.fullstack.cash/v5/'
+// const DEFAULT_REST_API = "http://localhost:3000/v5/"
 
 // local deps
 const BitcoinCash = require('./bitcoincash')
@@ -31,6 +31,8 @@ const SLP = require('./slp/slp')
 const IPFS = require('./ipfs')
 const Encryption = require('./encryption')
 const Utxo = require('./utxo')
+const Transaction = require('./transaction')
+const DSProof = require('./dsproof')
 
 // Indexers
 const Ninsight = require('./ninsight')
@@ -113,6 +115,9 @@ class BCHJS {
 
     this.IPFS = new IPFS()
     this.Utxo = new Utxo(libConfig)
+    this.Transaction = new Transaction(libConfig)
+
+    this.DSProof = new DSProof(libConfig)
   }
 }
 

src/blockchain.js

@@ -5,7 +5,7 @@
 
 const axios = require('axios')
 
-let _this
+// let _this
 
 class Blockchain {
   constructor (config) {
@@ -29,7 +29,7 @@ class Blockchain {
       }
     }
 
-    _this = this
+    // _this = this
   }
 
   /**
@@ -54,7 +54,7 @@ class Blockchain {
     try {
       const response = await axios.get(
         `${this.restURL}blockchain/getBestBlockHash`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -68,8 +68,8 @@ class Blockchain {
    * @apiName getBlock
    * @apiGroup Blockchain
    * @apiDescription
-   * If verbose is false, returns a string that is serialized, hex-encoded data for block 'hash'. If verbose is true, returns an Object with information about block hash.
-   *
+   * If verbose is 0, returns a string that is serialized, hex-encoded data for block 'hash'. If verbose is 1, returns an Object with information about block hash.
+   * If verbose is 2, returns an Object with information about block hash and information about tx.
    * @apiExample Example usage:
    * (async () => {
    * try {
@@ -80,29 +80,39 @@ class Blockchain {
    * }
    * })()
    *
-   * // { hash: '00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09',
-   * // confirmations: 528236,
-   * // size: 216,
-   * // height: 1000,
-   * // version: 1,
-   * // versionHex: '00000001',
-   * // merkleroot: 'fe28050b93faea61fa88c4c630f0e1f0a1c24d0082dd0e10d369e13212128f33',
-   * // tx:
-   * //  [ 'fe28050b93faea61fa88c4c630f0e1f0a1c24d0082dd0e10d369e13212128f33' ],
-   * // time: 1232346882,
-   * // mediantime: 1232344831,
-   * // nonce: 2595206198,
-   * // bits: '1d00ffff',
-   * // difficulty: 1,
-   * // chainwork: '000000000000000000000000000000000000000000000000000003e903e903e9',
-   * // previousblockhash: '0000000008e647742775a230787d66fdf92c46a48c896bfbc85cdc8acc67e87d',
-   * // nextblockhash: '00000000a2887344f8db859e372e7e4bc26b23b9de340f725afbf2edb265b4c6' }
+   * // {
+   * //  hash: '00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09',
+   * //  confirmations: 528236,
+   * //  size: 216,
+   * //  height: 1000,
+   * //  version: 1,
+   * //  versionHex: '00000001',
+   * //  merkleroot: 'fe28050b93faea61fa88c4c630f0e1f0a1c24d0082dd0e10d369e13212128f33',
+   * //  tx:
+   * //   [ 'fe28050b93faea61fa88c4c630f0e1f0a1c24d0082dd0e10d369e13212128f33' ],
+   * //  time: 1232346882,
+   * //  mediantime: 1232344831,
+   * //  nonce: 2595206198,
+   * //  bits: '1d00ffff',
+   * //  difficulty: 1,
+   * //  chainwork: '000000000000000000000000000000000000000000000000000003e903e903e9',
+   * //  previousblockhash: '0000000008e647742775a230787d66fdf92c46a48c896bfbc85cdc8acc67e87d',
+   * //  nextblockhash: '00000000a2887344f8db859e372e7e4bc26b23b9de340f725afbf2edb265b4c6'
+   * // }
    */
-  async getBlock (blockhash, verbose = true) {
+  async getBlock (blockhash, verbosity = 1) {
     try {
-      const response = await axios.get(
-        `${this.restURL}blockchain/getBlock/${blockhash}?verbose=${verbose}`,
-        _this.axiosOptions
+      // Input validation
+      if (!blockhash || typeof blockhash !== 'string') {
+        throw new Error('blockhash must be a string')
+      }
+      const response = await axios.post(
+        `${this.restURL}blockchain/getblock`,
+        {
+          blockhash,
+          verbosity
+        },
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -152,7 +162,7 @@ class Blockchain {
     try {
       const response = await axios.get(
         `${this.restURL}blockchain/getBlockchainInfo`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -183,7 +193,7 @@ class Blockchain {
     try {
       const response = await axios.get(
         `${this.restURL}blockchain/getBlockCount`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -216,7 +226,7 @@ class Blockchain {
     try {
       const response = await axios.get(
         `${this.restURL}blockchain/getBlockHash/${height}`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -263,7 +273,7 @@ class Blockchain {
       if (typeof hash === 'string') {
         const response = await axios.get(
           `${this.restURL}blockchain/getBlockHeader/${hash}?verbose=${verbose}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -277,7 +287,7 @@ class Blockchain {
             hashes: hash,
             verbose: verbose
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -324,7 +334,7 @@ class Blockchain {
     try {
       const response = await axios.get(
         `${this.restURL}blockchain/getChainTips`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -356,7 +366,7 @@ class Blockchain {
     try {
       const response = await axios.get(
         `${this.restURL}blockchain/getDifficulty`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -372,7 +382,7 @@ class Blockchain {
     try {
       const response = await axios.get(
         `${this.restURL}blockchain/getMempoolAncestors/${txid}?verbose=${verbose}`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -387,7 +397,7 @@ class Blockchain {
     try {
       const response = await axios.get(
         `${this.restURL}blockchain/getMempoolDescendants/${txid}?verbose=${verbose}`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -484,7 +494,7 @@ class Blockchain {
       if (typeof txid === 'string') {
         const response = await axios.get(
           `${this.restURL}blockchain/getMempoolEntry/${txid}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -495,7 +505,7 @@ class Blockchain {
           {
             txids: txid
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -535,7 +545,7 @@ class Blockchain {
     try {
       const response = await axios.get(
         `${this.restURL}blockchain/getMempoolInfo`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -582,7 +592,7 @@ class Blockchain {
     try {
       const response = await axios.get(
         `${this.restURL}blockchain/getRawMempool?vebose=${verbose}`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -626,7 +636,7 @@ class Blockchain {
       // Send the request to the REST API.
       // const response = await axios.get(
       //   `${this.restURL}blockchain/getTxOut/${txid}/${n}?includeMempool=${includeMempool}`,
-      //   _this.axiosOptions
+      //   this.axiosOptions
       // )
       const response = await axios.post(
         `${this.restURL}blockchain/getTxOut`,
@@ -635,7 +645,7 @@ class Blockchain {
           vout: n,
           mempool: includeMempool
         },
-        _this.axiosOptions
+        this.axiosOptions
       )
 
       return response.data
@@ -688,7 +698,7 @@ class Blockchain {
         const path = `${this.restURL}blockchain/getTxOutProof/${txids}`
         // if (blockhash) path = `${path}?blockhash=${blockhash}`
 
-        const response = await axios.get(path, _this.axiosOptions)
+        const response = await axios.get(path, this.axiosOptions)
         return response.data
 
         // Array of txids.
@@ -699,7 +709,7 @@ class Blockchain {
           {
             txids: txids
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -716,7 +726,7 @@ class Blockchain {
     try {
       const response = await axios.get(
         `${this.restURL}blockchain/preciousBlock/${blockhash}`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -729,7 +739,7 @@ class Blockchain {
     try {
       const response = await axios.post(
         `${this.restURL}blockchain/pruneBlockchain/${height}`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -742,7 +752,7 @@ class Blockchain {
     try {
       const response = await axios.get(
         `${this.restURL}blockchain/verifyChain?checklevel=${checklevel}&nblocks=${nblocks}`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -794,7 +804,7 @@ class Blockchain {
       if (typeof proof === 'string') {
         const response = await axios.get(
           `${this.restURL}blockchain/verifyTxOutProof/${proof}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
         return response.data
 
@@ -806,7 +816,7 @@ class Blockchain {
           {
             proofs: proof
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data

src/control.js

@@ -4,7 +4,7 @@
 
 const axios = require('axios')
 
-let _this // Global reference to the instance of this class.
+// let _this // Global reference to the instance of this class.
 
 class Control {
   constructor (config) {
@@ -28,7 +28,7 @@ class Control {
       }
     }
 
-    _this = this
+    // _this = this
   }
 
   /**
@@ -81,7 +81,7 @@ class Control {
     try {
       const response = await axios.get(
         `${this.restURL}control/getNetworkInfo`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -94,7 +94,7 @@ class Control {
     try {
       const response = await axios.get(
         `${this.restURL}control/getMemoryInfo`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {

src/dsproof.js

@@ -0,0 +1,81 @@
+const axios = require('axios')
+
+let _this
+
+class DSProof {
+  constructor (config) {
+    this.restURL = config.restURL
+    this.apiToken = config.apiToken
+    this.authToken = config.authToken
+    this.axios = axios
+
+    if (this.authToken) {
+      // Add Basic Authentication token to the authorization header.
+      this.axiosOptions = {
+        headers: {
+          authorization: this.authToken
+        }
+      }
+    } else {
+      // Add JWT token to the authorization header.
+      this.axiosOptions = {
+        headers: {
+          authorization: `Token ${this.apiToken}`
+        }
+      }
+    }
+
+    _this = this
+  }
+
+  /**
+   * @api DSProof.getDSProof() getDSProof()
+   * @apiName getDSProof
+   * @apiGroup DSProof
+   * @apiDescription Checks if a transaction generated a double-spend proof.
+   *
+   * If a double-spend is attempted, one of the transactions will generate a
+   * 'double spend proof'. This call can be used to check if a transaction
+   * generated such a proof.
+   *
+   * Merchants should wait 3-5 seconds after receiving notification of a
+   * transaction before calling this endpoint, to see if the TXID generated a
+   * proof. If this method returns no data, then the TX can be considered 'safe'
+   * and not a double spend. If proof data is returned by this method, then
+   * the transaction generated a proof and can be considered a 'double spend'.
+   *
+   * @apiExample Example usage:
+   * (async () => {
+   *   try {
+   *     const txid = 'ee0df780b58f6f24467605b2589c44c3a50fc849fb8f91b89669a4ae0d86bc7e'
+   *     const result = await bchjs.DSProof.getDSProof(txid)
+   *     console.log(result);
+   *   } catch(error) {
+   *    console.error(error)
+   *   }
+   * })()
+   *
+   * // returns
+   * null
+   */
+  async getDSProof (txid) {
+    try {
+      if (!txid) {
+        throw new Error('txid is required')
+      }
+      if (txid.length !== 64) {
+        throw new Error(`txid must be of length 64 (not ${txid.length})`)
+      }
+      const response = await _this.axios.get(
+        `${this.restURL}dsproof/getdsproof/${txid}`,
+        this.axiosOptions
+      )
+      return response.data
+    } catch (error) {
+      if (error.response && error.response.data) throw error.response.data
+      else throw error
+    }
+  }
+}
+
+module.exports = DSProof

src/electrumx.js

@@ -8,7 +8,7 @@ const axios = require('axios')
 // Local libraries.
 const Blockchain = require('./blockchain')
 
-let _this
+// let _this
 
 class ElectrumX {
   constructor (config) {
@@ -34,7 +34,7 @@ class ElectrumX {
 
     this.blockchain = new Blockchain(config)
 
-    _this = this
+    // _this = this
   }
 
   /**
@@ -108,7 +108,7 @@ class ElectrumX {
       if (typeof address === 'string') {
         const response = await axios.get(
           `${this.restURL}electrumx/utxos/${address}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
         return response.data
 
@@ -119,7 +119,7 @@ class ElectrumX {
           {
             addresses: address
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -192,7 +192,7 @@ class ElectrumX {
       if (typeof address === 'string') {
         const response = await axios.get(
           `${this.restURL}electrumx/balance/${address}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
         return response.data
 
@@ -203,7 +203,7 @@ class ElectrumX {
           {
             addresses: address
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -290,7 +290,7 @@ class ElectrumX {
       if (typeof address === 'string') {
         const response = await axios.get(
           `${this.restURL}electrumx/transactions/${address}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
         return response.data
 
@@ -302,7 +302,7 @@ class ElectrumX {
             addresses: address,
             usrObj // pass user data when making an internal call.
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -383,7 +383,7 @@ class ElectrumX {
       if (typeof address === 'string') {
         const response = await axios.get(
           `${this.restURL}electrumx/unconfirmed/${address}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
         return response.data
 
@@ -394,7 +394,7 @@ class ElectrumX {
           {
             addresses: address
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -452,7 +452,7 @@ class ElectrumX {
     try {
       const response = await axios.get(
         `${this.restURL}electrumx/block/headers/${height}?count=${count}`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -543,7 +543,7 @@ class ElectrumX {
       if (typeof txid === 'string') {
         const response = await axios.get(
           `${this.restURL}electrumx/tx/data/${txid}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
         return response.data
       } else if (Array.isArray(txid)) {
@@ -552,7 +552,7 @@ class ElectrumX {
           {
             txids: txid
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -592,7 +592,7 @@ class ElectrumX {
         const response = await axios.post(
           `${this.restURL}electrumx/tx/broadcast`,
           { txHex },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data

src/encryption.js

@@ -35,11 +35,13 @@ class Encryption {
   // Search the blockchain for a public key associated with a BCH address.
   async getPubKey (addr) {
     try {
-      if (!addr || typeof addr !== 'string') { throw new Error('Input must be a valid Bitcoin Cash address.') }
+      if (!addr || typeof addr !== 'string') {
+        throw new Error('Input must be a valid Bitcoin Cash address.')
+      }
 
       const response = await _this.axios.get(
         `${this.restURL}encryption/publickey/${addr}`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {

src/generating.js

@@ -1,6 +1,6 @@
 const axios = require('axios')
 
-let _this
+// let _this
 
 class Generating {
   constructor (config) {
@@ -24,14 +24,14 @@ class Generating {
       }
     }
 
-    _this = this
+    // _this = this
   }
 
   async generateToAddress (blocks, address, maxtries = 1000000) {
     try {
       const response = await axios.post(
         `${this.restURL}generating/generateToAddress/${blocks}/${address}?maxtries=${maxtries}`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {

src/mining.js

@@ -1,6 +1,6 @@
 const axios = require('axios')
 
-let _this
+// let _this
 
 class Mining {
   constructor (config) {
@@ -24,14 +24,14 @@ class Mining {
       }
     }
 
-    _this = this
+    // _this = this
   }
 
   async getBlockTemplate (templateRequest) {
     try {
       const response = await axios.get(
         `${this.restURL}mining/getBlockTemplate/${templateRequest}`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -44,7 +44,7 @@ class Mining {
     try {
       const response = await axios.get(
         `${this.restURL}mining/getMiningInfo`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -57,7 +57,7 @@ class Mining {
     try {
       const response = await axios.get(
         `${this.restURL}mining/getNetworkHashps?nblocks=${nblocks}&height=${height}`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       return response.data
     } catch (error) {
@@ -71,7 +71,7 @@ class Mining {
     if (parameters) path = `${path}?parameters=${parameters}`
 
     try {
-      const response = await axios.post(path, _this.axiosOptions)
+      const response = await axios.post(path, this.axiosOptions)
       return response.data
     } catch (error) {
       if (error.response && error.response.data) throw error.response.data

src/ninsight.js

@@ -5,7 +5,7 @@
 
 const axios = require('axios')
 
-let _this
+// let _this
 
 class Ninsight {
   constructor (config) {
@@ -27,7 +27,7 @@ class Ninsight {
       }
     }
 
-    _this = this
+    // _this = this
   }
 
   /**
@@ -75,7 +75,7 @@ class Ninsight {
           {
             addresses: [address]
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
         return response.data
 
@@ -86,7 +86,7 @@ class Ninsight {
           {
             addresses: address
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -143,7 +143,7 @@ class Ninsight {
           {
             addresses: [address]
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -153,7 +153,7 @@ class Ninsight {
           {
             addresses: address
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -219,7 +219,7 @@ class Ninsight {
           {
             addresses: [address]
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -229,7 +229,7 @@ class Ninsight {
           {
             addresses: address
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -292,7 +292,7 @@ class Ninsight {
           {
             txids: [txid]
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -302,7 +302,7 @@ class Ninsight {
           {
             txids: txid
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data

src/price.js

@@ -1,10 +1,10 @@
 const axios = require('axios')
 
-let _this
+// let _this
 
 class Price {
   constructor (config) {
-    _this = this
+    // _this = this
 
     this.restURL = config.restURL
     this.apiToken = config.apiToken
@@ -68,7 +68,7 @@ class Price {
     try {
       const response = await this.axios.get(
         `${this.restURL}price/usd`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       // console.log(`response.data: ${JSON.stringify(response.data, null, 2)}`)
 
@@ -111,7 +111,7 @@ class Price {
     try {
       const response = await this.axios.get(
         `${this.restURL}price/rates`,
-        _this.axiosOptions
+        this.axiosOptions
       )
       // console.log(`response.data: ${JSON.stringify(response.data, null, 2)}`)
 
@@ -146,7 +146,42 @@ class Price {
     try {
       const response = await this.axios.get(
         `${this.restURL}price/bchausd`,
-        _this.axiosOptions
+        this.axiosOptions
+      )
+      // console.log(`response.data: ${JSON.stringify(response.data, null, 2)}`)
+
+      return response.data.usd
+    } catch (err) {
+      if (err.response && err.response.data) throw err.response.data
+      else throw err
+    }
+  }
+
+  /**
+   * @api price.getBchUsd() getBchUsd()
+   * @apiName Price getBchUsd()
+   * @apiGroup Price
+   * @apiDescription Return current price of BCH in USD.
+   * This endpoint gets the USD price of BCH from the Coinex API. The price
+   * comes from bch-api, so it has a better chance of working in Tor.
+   *
+   * @apiExample Example usage:
+   *(async () => {
+   *  try {
+   *    let current = await bchjs.Price.getBchUsd();
+   *    console.log(current);
+   *  } catch(err) {
+   *   console.err(err)
+   *  }
+   *})()
+   *
+   * // 512.81
+   */
+  async getBchUsd () {
+    try {
+      const response = await this.axios.get(
+        `${this.restURL}price/bchusd`,
+        this.axiosOptions
       )
       // console.log(`response.data: ${JSON.stringify(response.data, null, 2)}`)
 

src/raw-transactions.js

@@ -1,8 +1,6 @@
 const axios = require('axios')
 
-const SlpUtils = require('./slp/utils')
-
-let _this
+// let _this
 
 class RawTransactions {
   constructor (config) {
@@ -29,10 +27,7 @@ class RawTransactions {
     // Encapsulate dependencies
     this.axios = axios
 
-    // Dependencies
-    this.slpUtils = new SlpUtils(config)
-
-    _this = this
+    // this = this
   }
 
   /**
@@ -103,7 +98,7 @@ class RawTransactions {
       if (typeof hex === 'string') {
         const response = await axios.get(
           `${this.restURL}rawtransactions/decodeRawTransaction/${hex}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -116,9 +111,7 @@ class RawTransactions {
           data: {
             hexes: hex
           },
-          headers: {
-            authorization: `Token ${_this.apiToken}`
-          }
+          headers: this.axiosOptions.headers
         }
         const response = await axios(options)
 
@@ -127,7 +120,8 @@ class RawTransactions {
 
       throw new Error('Input must be a string or array of strings.')
     } catch (error) {
-      if (error.response && error.response.data) throw error.response.data
+      if (error.error) throw new Error(error.error)
+      else if (error.response && error.response.data) throw error.response.data
       else throw error
     }
   }
@@ -172,7 +166,7 @@ class RawTransactions {
       if (typeof script === 'string') {
         const response = await axios.get(
           `${this.restURL}rawtransactions/decodeScript/${script}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -183,9 +177,7 @@ class RawTransactions {
           data: {
             hexes: script
           },
-          headers: {
-            authorization: `Token ${this.apiToken}`
-          }
+          headers: this.axiosOptions.headers
         }
         const response = await axios(options)
 
@@ -194,7 +186,8 @@ class RawTransactions {
 
       throw new Error('Input must be a string or array of strings.')
     } catch (error) {
-      if (error.response && error.response.data) throw error.response.data
+      if (error.error) throw new Error(error.error)
+      else if (error.response && error.response.data) throw error.response.data
       else throw error
     }
   }
@@ -266,9 +259,13 @@ class RawTransactions {
   async getRawTransaction (txid, verbose = false, usrObj = null) {
     try {
       if (typeof txid === 'string') {
+        // console.log(
+        //   'getRawTransaction() this.axiosOptions: ',
+        //   this.axiosOptions
+        // )
         const response = await axios.get(
           `${this.restURL}rawtransactions/getRawTransaction/${txid}?verbose=${verbose}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -281,7 +278,7 @@ class RawTransactions {
             verbose: verbose,
             usrObj // pass user data when making an internal call.
           },
-          headers: _this.axiosOptions.headers
+          headers: this.axiosOptions.headers
         }
         const response = await axios(options)
 
@@ -290,8 +287,14 @@ class RawTransactions {
 
       throw new Error('Input must be a string or array of strings.')
     } catch (error) {
-      if (error.response && error.response.data) throw error.response.data
-      else throw error
+      if (error.error) throw new Error(error.error)
+
+      // This case handles rate limit errors.
+      if (error.response && error.response.data && error.response.data.error) {
+        throw new Error(error.response.data.error)
+      } else if (error.response && error.response.data) {
+        throw error.response.data
+      } else throw error
     }
   }
 
@@ -328,14 +331,21 @@ class RawTransactions {
 
         retArray.push({
           vin: i,
-          address: voutSender.scriptPubKey.addresses[0]
+          address: voutSender.scriptPubKey.addresses[0],
+          value: voutSender.value
         })
       }
 
       return retArray
     } catch (error) {
-      if (error.response && error.response.data) throw error.response.data
-      else throw error
+      if (error.error) throw new Error(error.error)
+
+      // This case handles rate limit errors.
+      if (error.response && error.response.data && error.response.data.error) {
+        throw new Error(error.response.data.error)
+      } else if (error.response && error.response.data) {
+        throw error.response.data
+      } else throw error
     }
   }
 
@@ -369,7 +379,9 @@ class RawTransactions {
   async getTxData (txid) {
     try {
       if (typeof txid !== 'string') {
-        throw new Error('Input must be a string or array of strings.')
+        throw new Error(
+          'Input to raw-transaction.js/getTxData() must be a string containg a TXID.'
+        )
       }
 
       // Get the TX details for the transaction under consideration.
@@ -382,90 +394,19 @@ class RawTransactions {
       // Add the input address to the transaction data.
       for (let i = 0; i < inAddrs.length; i++) {
         txDetails.vin[i].address = inAddrs[i].address
+        txDetails.vin[i].value = inAddrs[i].value
       }
 
       return txDetails
     } catch (error) {
-      if (error.response && error.response.data) throw error.response.data
-      else throw error
-    }
-  }
+      if (error.error) throw new Error(error.error)
 
-  // Wraps getTxData(), but also appends SLP token information to each input
-  // and output of the transaction. This is a very API-heavy call.
-  // Returns false if the txid is not an SLP transaction.
-  //
-  // Warning! This is a prototype function and the output can change at any time
-  // without reflecting a change in the semantic version. DO NOT USE IN PRODUCTION.
-  async getTxDataSlp (txid) {
-    try {
-      if (typeof txid !== 'string') {
-        throw new Error('Input must be a string or array of strings.')
-      }
-
-      const txDetails = await this.getTxData(txid)
-
-      // First get the token information for the output. If that fails, then
-      // this is not an SLP transaction, and this method can return false.
-      let outTokenData
-      try {
-        outTokenData = await this.slpUtils.decodeOpReturn(txid)
-        // console.log(`outTokenData: ${JSON.stringify(outTokenData, null, 2)}`)
-
-        // Add token information to the tx details object.
-        txDetails.tokenTxType = outTokenData.txType
-        txDetails.tokenId = outTokenData.tokenId
-
-        // Add the token quantity to each output.
-        for (let i = 0; i < outTokenData.amounts.length; i++) {
-          txDetails.vout[i + 1].tokenQty = outTokenData.amounts[i]
-        }
-
-        // Loop through each input and retrieve the token data.
-        for (let i = 0; i < txDetails.vin.length; i++) {
-          const thisVin = txDetails.vin[i]
-
-          try {
-            // If decodeOpReturn() throws an error, then this input is not
-            // from an SLP transaction and can be ignored.
-            const inTokenData = await this.slpUtils.decodeOpReturn(thisVin.txid)
-            // console.log(
-            //   `vin[${i}] tokenData: ${JSON.stringify(inTokenData, null, 2)}`
-            // )
-
-            // Get the appropriate vout token amount. This may throw an error,
-            // which means this Vin is not actually a token UTXO, it was just
-            // associated with a previous token TX.
-            const tokenQty = inTokenData.amounts[thisVin.vout - 1]
-            // console.log(`tokenQty: ${JSON.stringify(tokenQty, null, 2)}`)
-
-            if (tokenQty) {
-              thisVin.tokenQty = tokenQty
-              // txDetails.vin[i].tokenQty = tokenQty
-            } else {
-              thisVin.tokenQty = null
-            }
-          } catch (err) {
-            // console.log('catch 2: ', err)
-            // If decodeOpReturn() throws an error, then this input is not
-            // from an SLP transaction and can be ignored.
-            // thisVin.tokenQty = null
-            thisVin.tokenQty = null
-            continue
-          }
-          // console.log(
-          //   `2: txDetails.vin[i]: ${JSON.stringify(txDetails.vin[i], null, 2)}`
-          // )
-        }
-      } catch (err) {
-        // console.log('catch 1: ', err)
-        return false
-      }
-
-      return txDetails
-    } catch (error) {
-      if (error.response && error.response.data) throw error.response.data
-      else throw error
+      // This case handles rate limit errors.
+      if (error.response && error.response.data && error.response.data.error) {
+        throw new Error(error.response.data.error)
+      } else if (error.response && error.response.data) {
+        throw error.response.data
+      } else throw error
     }
   }
 
@@ -507,7 +448,7 @@ class RawTransactions {
       if (typeof hex === 'string') {
         const response = await this.axios.get(
           `${this.restURL}rawtransactions/sendRawTransaction/${hex}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         if (response.data === '66: insufficient priority') {
@@ -528,16 +469,17 @@ class RawTransactions {
           data: {
             hexes: hex
           },
-          headers: _this.axiosOptions.headers
+          headers: this.axiosOptions.headers
         }
-        const response = await _this.axios(options)
+        const response = await this.axios(options)
 
         return response.data
       }
 
       throw new Error('Input hex must be a string or array of strings.')
     } catch (error) {
-      if (error.response && error.response.data) throw error.response.data
+      if (error.error) throw new Error(error.error)
+      else if (error.response && error.response.data) throw error.response.data
       else throw error
     }
   }

src/slp/nft1.js

@@ -8,16 +8,21 @@
   (Parent) token.
 */
 
+// Public npm libraries
+const axios = require('axios')
+
+// Local libraries.
 const Address = require('./address')
 
 // const BigNumber = require('bignumber.js')
 const slpMdm = require('slp-mdm')
 
+// let _this
 // const addy = new Address()
 let addy
 const TransactionBuilder = require('../transaction-builder')
 
-class TokenType1 {
+class Nft1 {
   constructor (config) {
     this.restURL = config.restURL
 
@@ -25,6 +30,8 @@ class TokenType1 {
 
     // Instantiate the transaction builder.
     TransactionBuilder.setAddress(addy)
+
+    // _this = this
   }
 
   /**
@@ -412,6 +419,97 @@ class TokenType1 {
       throw err
     }
   }
+
+  /**
+   * @api SLP.NFT1.listNFTGroupChildren() listNFTGroupChildren()
+   * @apiName listNFTGroupChildren
+   * @apiGroup SLP NFT1
+   * @apiDescription Return list of NFT children tokens in a NFT Group.
+   * It's assumed provided groupId parameter is for an NFT Group token (type=129)
+   *
+   * Returns an Array with GENESIS transaction IDs of the children tokens.
+   *
+   * @apiExample Example usage:
+   *
+   * const groupId = '68cd33ecd909068fbea318ae5ff1d6207cf754e53b191327d6d73b6916424c0a'
+   * const children = await bchjs.SLP.Nft1.listNFTGroupChildren(groupId)
+   *
+   * children = {
+   *  "nftChildren": [
+   *    "45a30085691d6ea586e3ec2aa9122e9b0e0d6c3c1fd357decccc15d8efde48a9",
+   *    "928ce61fe1006b1325a0ba0dce700bf83986a6f0691ba26e121c9ac035d12a55"
+   *  ]
+   * }
+   */
+  async listNFTGroupChildren (groupId) {
+    try {
+      if (typeof groupId === 'string') {
+        const response = await axios.get(
+          `${this.restURL}slp/nftChildren/${groupId}`,
+          this.axiosOptions
+        )
+        return response.data
+      }
+
+      throw new Error('groupId must be a string.')
+    } catch (error) {
+      // console.log('Error in listNFTGroupChildren()')
+      if (error.response && error.response.data) throw error.response.data
+      else throw error
+    }
+  }
+
+  /**
+   * @api SLP.NFT1.parentNFTGroup() parentNFTGroup()
+   * @apiName parentNFTGroup
+   * @apiGroup SLP NFT1
+   * @apiDescription Return parent NFT Group information for a given NFT child token.
+   * It's assumed provided groupId parameter is for an NFT Child token (type=65)
+   *
+   * Returns a JSON with NFT group information.
+   *
+   * @apiExample Example usage:
+   *
+   * const tokenId = '45a30085691d6ea586e3ec2aa9122e9b0e0d6c3c1fd357decccc15d8efde48a9'
+   * const group = await bchjs.SLP.Nft1.parentNFTGroup(tokenId)
+   *
+   * group = {
+   *   "nftGroup": {
+   *     "decimals": 0,
+   *     "timestamp": "2021-05-03 10:36:01",
+   *     "timestamp_unix": 1620038161,
+   *     "versionType": 129,
+   *     "documentUri": "psfoundation.cash",
+   *     "symbol": "PSF.TEST.GROUP",
+   *     "name": "PSF Test NFT Group",
+   *     "containsBaton": true,
+   *     "id": "68cd33ecd909068fbea318ae5ff1d6207cf754e53b191327d6d73b6916424c0a",
+   *     "documentHash": null,
+   *     "initialTokenQty": 1000000,
+   *     "blockCreated": 686117,
+   *     "totalMinted": null,
+   *     "totalBurned": null,
+   *     "circulatingSupply": null
+   *   }
+   * }
+   */
+  async parentNFTGroup (tokenId) {
+    try {
+      if (typeof tokenId === 'string') {
+        const response = await axios.get(
+          `${this.restURL}slp/nftGroup/${tokenId}`,
+          this.axiosOptions
+        )
+        return response.data
+      }
+
+      throw new Error('tokenId must be a string.')
+    } catch (error) {
+      // console.log('Error in parentNFTGroup()')
+      if (error.response && error.response.data) throw error.response.data
+      else throw error
+    }
+  }
 }
 
-module.exports = TokenType1
+module.exports = Nft1

src/slp/slp.js

@@ -41,7 +41,7 @@ class SLP {
     this.Address = new Address(config)
     this.ECPair = ECPair
     this.TokenType1 = new TokenType1(config)
-    this.NFT1 = new NFT1(this.restURL)
+    this.NFT1 = new NFT1(config)
     this.Utils = new Utils(config)
   }
 }

src/slp/tokentype1.js

@@ -125,13 +125,13 @@ class TokenType1 {
         // console.log('baseChange: ', baseChange)
 
         // Check for potential burns
-        const outputQty = new BigNumber(baseChange).plus(
-          new BigNumber(baseQty)
-        )
+        const outputQty = new BigNumber(baseChange).plus(new BigNumber(baseQty))
         const inputQty = new BigNumber(totalTokens)
         const tokenOutputDelta = outputQty.minus(inputQty).toString() !== '0'
         if (tokenOutputDelta) {
-          throw new Error('Token transaction inputs do not match outputs, cannot send transaction')
+          throw new Error(
+            'Token transaction inputs do not match outputs, cannot send transaction'
+          )
         }
 
         // Generate the OP_RETURN as a Buffer.
@@ -152,7 +152,9 @@ class TokenType1 {
         const tokenSingleOutputError =
           noChangeOutputQty.minus(noChangeInputQty).toString() !== '0'
         if (tokenSingleOutputError) {
-          throw new Error('Token transaction inputs do not match outputs, cannot send transaction')
+          throw new Error(
+            'Token transaction inputs do not match outputs, cannot send transaction'
+          )
         }
 
         // Generate the OP_RETURN as a Buffer.
@@ -378,9 +380,7 @@ class TokenType1 {
 
       // Throw an error if the minting baton could not be found.
       if (!mintBatonUtxo) {
-        throw new Error(
-          'Minting baton could not be found in tokenUtxos array.'
-        )
+        throw new Error('Minting baton could not be found in tokenUtxos array.')
       }
 
       const tokenId = mintBatonUtxo.tokenId
@@ -454,7 +454,7 @@ class TokenType1 {
       const result = await _this.axios.post(
         `${this.restURL}slp/generatesendopreturn`,
         data,
-        _this.axiosOptions
+        this.axiosOptions
       )
 
       const slpSendObj = result.data

src/slp/utils.js

@@ -1,12 +1,12 @@
+/* eslint-disable no-useless-catch */
+
 // Public npm libraries
 const axios = require('axios')
 const slpParser = require('slp-parser')
 const BigNumber = require('bignumber.js')
 
-// const Script = require("../script")
-// const scriptLib = new Script()
-
-// const BigNumber = require("bignumber.js")
+// Local libraries
+const Util = require('../util')
 
 let _this
 
@@ -37,6 +37,8 @@ class Utils {
     _this = this
 
     this.whitelist = []
+
+    this.util = new Util(config)
   }
 
   /**
@@ -215,14 +217,14 @@ class Utils {
     try {
       let response
       if (method === 'get') {
-        response = await _this.axios.get(path, _this.axiosOptions)
+        response = await _this.axios.get(path, this.axiosOptions)
       } else {
         response = await _this.axios.post(
           path,
           {
             tokenIds: id
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
       }
       return response.data
@@ -313,7 +315,7 @@ class Utils {
       if (typeof address === 'string') {
         const path = `${this.restURL}slp/balancesForAddress/${address}`
 
-        const response = await _this.axios.get(path, _this.axiosOptions)
+        const response = await _this.axios.get(path, this.axiosOptions)
         return response.data
 
         // Array of addresses.
@@ -326,7 +328,7 @@ class Utils {
           {
             addresses: address
           },
-          _this.axiosOptions
+          this.axiosOptions
         )
 
         return response.data
@@ -378,7 +380,7 @@ class Utils {
     try {
       const path = `${this.restURL}slp/balancesForToken/${tokenId}`
 
-      const response = await _this.axios.get(path, _this.axiosOptions)
+      const response = await _this.axios.get(path, this.axiosOptions)
       return response.data
     } catch (error) {
       if (error.response && error.response.data) throw error.response.data
@@ -448,13 +450,14 @@ class Utils {
     else txids = txid
 
     try {
+      // console.log('validateTxid() this.axiosOptions: ', this.axiosOptions)
       const response = await _this.axios.post(
         path,
         {
           txids: txids,
           usrObj // pass user data when making an internal call.
         },
-        _this.axiosOptions
+        this.axiosOptions
       )
       // console.log(
       //   `validateTxid response.data: ${JSON.stringify(response.data, null, 2)}`
@@ -518,7 +521,8 @@ class Utils {
 
       const path = `${this.restURL}slp/validateTxid2/${txid}`
 
-      const response = await _this.axios.get(path, _this.axiosOptions)
+      // console.log('validateTxid2() this.axiosOptions: ', this.axiosOptions)
+      const response = await _this.axios.get(path, this.axiosOptions)
       return response.data
     } catch (error) {
       if (error.response && error.response.data) throw error.response.data
@@ -587,7 +591,7 @@ class Utils {
 
       // Retrieve the whitelist from the REST API if we haven't gotten it yet.
       if (this.whitelist.length === 0) {
-        const response = await _this.axios.get(path, _this.axiosOptions)
+        const response = await _this.axios.get(path, this.axiosOptions)
         // console.log(`response.data: ${JSON.stringify(response.data, null, 2)}`)
 
         this.whitelist = response.data
@@ -664,13 +668,14 @@ class Utils {
     else txids = txid
 
     try {
+      // console.log('validateTxid3() this.axiosOptions: ', this.axiosOptions)
       const response = await _this.axios.post(
         path,
         {
           txids: txids,
           usrObj // pass user data when making an internal call.
         },
-        _this.axiosOptions
+        this.axiosOptions
       )
       // console.log(`response.data: ${JSON.stringify(response.data, null, 2)}`)
 
@@ -678,6 +683,14 @@ class Utils {
 
       return validatedTxids
     } catch (error) {
+      // console.log('validateTxid3 error: ', error)
+
+      // This case handles rate limit errors.
+      if (error.response && error.response.data && error.response.data.error) {
+        throw new Error(error.response.data.error)
+      }
+
+      // Not sure if this can be safely deprecated?
       if (error.response && error.response.data) throw error.response.data
       throw error
     }
@@ -722,7 +735,7 @@ class Utils {
     try {
       const path = `${this.restURL}slp/tokenStats/${tokenId}`
 
-      const response = await _this.axios.get(path, _this.axiosOptions)
+      const response = await _this.axios.get(path, this.axiosOptions)
 
       return response.data
     } catch (error) {
@@ -793,7 +806,7 @@ class Utils {
     try {
       const path = `${this.restURL}slp/transactions/${tokenId}/${address}`
 
-      const response = await _this.axios.get(path, _this.axiosOptions)
+      const response = await _this.axios.get(path, this.axiosOptions)
 
       return response.data
     } catch (error) {
@@ -833,7 +846,7 @@ class Utils {
     try {
       const path = `${this.restURL}slp/burnTotal/${transactionId}`
 
-      const response = await _this.axios.get(path, _this.axiosOptions)
+      const response = await _this.axios.get(path, this.axiosOptions)
 
       return response.data
     } catch (error) {
@@ -877,7 +890,7 @@ class Utils {
       // console.log(`this.restURL: ${this.restURL}`)
       const path = `${this.restURL}slp/txDetails/${txid}`
 
-      const response = await _this.axios.get(path, _this.axiosOptions)
+      const response = await _this.axios.get(path, this.axiosOptions)
       return response.data
     } catch (error) {
       if (error.response && error.response.data) throw error.response.data
@@ -897,6 +910,9 @@ class Utils {
    * If optional associative array parameter cache is used, will cache and
    * reuse responses for the same input.
    *
+   * A third optional input, `usrObj`, is used by bch-api for managing rate limits.
+   * It can be safely ignored when writing apps using this call.
+   *
    *
    * @apiExample Example usage:
    *
@@ -953,22 +969,18 @@ class Utils {
 
       // CT: 2/24/21 Deprected GET in favor of POST, to pass IP address.
       // Retrieve the transaction object from the full node.
-      // const path = `${this.restURL}rawtransactions/getRawTransaction/${txid}?verbose=true`
-      // const response = await _this.axios.get(path, _this.axiosOptions)
-      // const txDetails = response.data
-
       const path = `${this.restURL}rawtransactions/getRawTransaction`
-      const response = await _this.axios.post(
+      // console.log('decodeOpReturn() this.axiosOptions: ', this.axiosOptions)
+      const response = await this.axios.post(
         path,
         {
           verbose: true,
           txids: [txid],
           usrObj // pass user data when making an internal call.
         },
-        _this.axiosOptions
+        this.axiosOptions
       )
       const txDetails = response.data[0]
-
       // console.log(`txDetails: ${JSON.stringify(txDetails, null, 2)}`)
 
       // SLP spec expects OP_RETURN to be the first output of the transaction.
@@ -1015,8 +1027,16 @@ class Utils {
 
       return tokenData
     } catch (error) {
+      // Used for debugging
       // console.log('decodeOpReturn error: ', error)
-      if (error.response && error.response.data) throw error.response.data
+      // console.log(`decodeOpReturn error.message: ${error.message}`)
+      // if (error.response && error.response.data) {
+      //   console.log(
+      //     `decodeOpReturn error.response.data: ${JSON.stringify(
+      //       error.response.data
+      //     )}`
+      //   )
+      // }
       throw error
     }
   }
@@ -1029,18 +1049,30 @@ class Utils {
    *
    * Expects an array of UTXO objects as input. Returns an array of equal size.
    * Returns UTXO data hydrated with token information.
-   * If the
-   * UTXO does not belong to a SLP transaction, it will return an `isValid` property
-   * set to false.
-   * If the UTXO is part of an SLP transaction, it will return the UTXO object
-   * with additional SLP information attached. An `isValid` property will be included.
-   * If its value is true, the UTXO is a valid SLP UTXO.
-   * If the isValid value is null,
-   * then SLPDB has not yet processed that txid and validity has not been confirmed,
-   * or a 429 rate-limit error was enountered during the processing of the request.
    *
-   * This is an API-heavy call. If you get a lot of null values, then slow down
-   * the calls or request info on fewer UTXOs at a time.
+   * - If the UTXO does not belong to a SLP transaction, it will return an
+   * `isValid` property set to `false`.
+   *
+   * - If the UTXO is part of an SLP transaction, it will return the UTXO object
+   * with additional SLP information attached. An `isValid` property will be
+   * included.
+   *   - If the `isValid` property is `true`, the UTXO is a valid SLP UTXO.
+   *   - If the `isValid` property is `null`, then SLPDB has not yet processed
+   *     that txid and validity has not been confirmed, or a 429 rate-limit error
+   *     was enountered during the processing of the request.
+   *
+   * An optional second input object, `usrObj`, allows the user to inject an
+   * artifical delay while processing UTXOs. If `usrObj.utxoDelay` is set to
+   * a number, the call will delay by that number of milliseconds between
+   * processing UTXOs.
+   *
+   * This is an API-heavy call. If you get a lot of `null` values, then slow down
+   * the calls by using the usrObj.utxoDelay property, or request info on fewer
+   * UTXOs at a
+   * time. `null` indicates that the UTXO can *not* be safely spent, because
+   * a judgement as to weather it is a token UTXO has not been made. Spending it
+   * could burn tokens. It's safest to ignore UTXOs with a value of `null`.
+   *
    *
    * @apiExample Example usage:
    *
@@ -1048,7 +1080,8 @@ class Utils {
    * try {
    *  const utxos = await bchjs.Electrumx.utxo(`bitcoincash:qpcqs0n5xap26un2828n55gan2ylj7wavvzeuwdx05`)
    *
-   *  const utxoInfo = await bchjs.SLP.Utils.tokenUtxoDetails(utxos)
+   *  // Delay 100mS between processing UTXOs, to prevent rate-limit errors.
+   *  const utxoInfo = await bchjs.SLP.Utils.tokenUtxoDetails(utxos, { utxoDelay: 100 })
    *
    *  console.log(`utxoInfo: ${JSON.stringify(utxoInfo, null, 2)}`)
    * } catch (error) {
@@ -1076,11 +1109,6 @@ class Utils {
    *  "tokenType": 1
    * }
    */
-
-  // CT 1/11/20: Refactored to comply with this GitHub Issue:
-  // https://github.com/Bitcoin-com/slp-sdk/issues/84
-
-  // CT 5/31/20: Refactored to use slp-parse library.
   async tokenUtxoDetails (utxos, usrObj = null) {
     try {
       // Throw error if input is not an array.
@@ -1130,7 +1158,7 @@ class Utils {
         // *After* the UTXO has been hydrated with SLP data,
         // validate the TXID with SLPDB.
         if (utxo.tokenType) {
-          // Only execute this block if the current UTXO has a 'tokenType'
+          // Only execute this code-path if the current UTXO has a 'tokenType'
           // property. i.e. it has been successfully hydrated with SLP
           // information.
 
@@ -1142,6 +1170,7 @@ class Utils {
 
       return outAry
     } catch (error) {
+      // console.log('Error in tokenUtxoDetails()')
       if (error.response && error.response.data) throw error.response.data
       throw error
     }
@@ -1158,8 +1187,20 @@ class Utils {
    * but much more performant handling of SLP tokens. Some wallet apps prefer
    * the scaling performance over the breadth of supported tokens.
    *
+   * An optional second input object, `usrObj`, allows the user to inject an
+   * artifical delay while processing UTXOs. If `usrObj.utxoDelay` is set to
+   * a number, the call will delay by that number of milliseconds between
+   * processing UTXOs.
+   *
+   * This is an API-heavy call. If you get a lot of `null` values, then slow down
+   * the calls by using the usrObj.utxoDelay property, or request info on fewer
+   * UTXOs at a
+   * time. `null` indicates that the UTXO can *not* be safely spent, because
+   * a judgement as to weather it is a token UTXO has not been made. Spending it
+   * could burn tokens. It's safest to ignore UTXOs with a value of `null`.
+   *
    */
-  async tokenUtxoDetailsWL (utxos) {
+  async tokenUtxoDetailsWL (utxos, usrObj = null) {
     try {
       // Throw error if input is not an array.
       if (!Array.isArray(utxos)) throw new Error('Input must be an array.')
@@ -1195,7 +1236,7 @@ class Utils {
       }
 
       // Hydrate each UTXO with data from SLP OP_REUTRNs.
-      const outAry = await this._hydrateUtxo(utxos)
+      const outAry = await this._hydrateUtxo(utxos, usrObj)
       // console.log(`outAry: ${JSON.stringify(outAry, null, 2)}`)
 
       // *After* each UTXO has been hydrated with SLP data,
@@ -1211,7 +1252,7 @@ class Utils {
           // information.
 
           // Validate against the whitelist SLPDB.
-          const whitelistResult = await this.validateTxid3(utxo.txid)
+          const whitelistResult = await this.validateTxid3(utxo.txid, usrObj)
           // console.log(
           //   `whitelist-SLPDB for ${txid}: ${JSON.stringify(
           //     whitelistResult,
@@ -1239,6 +1280,20 @@ class Utils {
   // This is a private function that is called by tokenUtxoDetails().
   // It loops through an array of UTXOs and tries to hydrate them with SLP
   // token information from the OP_RETURN data.
+  //
+  // This function makes several calls to decodeOpReturn() to retrieve SLP
+  // token data. If that call throws an error due to hitting rate limits, this
+  // function will not throw an error. Instead, it will mark the `isValid`
+  // property as `null`
+  //
+  // Exception to the above: It *will* throw an error if decodeOpReturn() throws
+  // an error while trying to get the Genesis transaction for a Send or Mint
+  // transaction. However, that is a rare occurence since the cache of
+  // decodeOpReturn() will minimize API calls for this case. This behavior
+  // could be changed, but right now it's a corner case of a corner case.
+  //
+  // If the usrObj has a utxoDelay property, then it will delay the loop for
+  // each UTXO by that many milliseconds.
   async _hydrateUtxo (utxos, usrObj = null) {
     try {
       const decodeOpReturnCache = {}
@@ -1252,6 +1307,12 @@ class Utils {
       for (let i = 0; i < utxos.length; i++) {
         const utxo = utxos[i]
 
+        // If the user passes in a delay, then wait.
+        if (usrObj && usrObj.utxoDelay && !isNaN(Number(usrObj.utxoDelay))) {
+          const delayMs = Number(usrObj.utxoDelay)
+          await this.util.sleep(delayMs)
+        }
+
         // Get raw transaction data from the full node and attempt to decode
         // the OP_RETURN data.
         // If there is no OP_RETURN, mark the UTXO as false.
@@ -1264,7 +1325,10 @@ class Utils {
           )
           // console.log(`slpData: ${JSON.stringify(slpData, null, 2)}`)
         } catch (err) {
-          // console.log(`error from decodeOpReturn(${utxo.txid}): `, err)
+          // console.log(
+          //   `error in _hydrateUtxo() from decodeOpReturn(${utxo.txid}): `,
+          //   err
+          // )
 
           // An error will be thrown if the txid is not SLP.
           // If error is for some other reason, like a 429 error, mark utxo as 'null'
@@ -1276,7 +1340,7 @@ class Utils {
               err.message.indexOf('trailing data') === -1)
           ) {
             // console.log(
-            //   'unknown error from decodeOpReturn(). Marking as \'null\'',
+            //   "unknown error from decodeOpReturn(). Marking as 'null'",
             //   err
             // )
 
@@ -1295,6 +1359,7 @@ class Utils {
           // Halt the execution of the loop and increase to the next index.
           continue
         }
+        // console.log(`slpData: ${JSON.stringify(slpData, null, 2)}`)
 
         const txType = slpData.txType.toLowerCase()
 
@@ -1332,6 +1397,10 @@ class Utils {
             utxo.decimals = slpData.decimals
             utxo.tokenType = slpData.tokenType
 
+            // Initial value is null until UTXO can be validated and confirmed
+            // to be valid (true) or not (false).
+            utxo.isValid = null
+
             outAry[i] = utxo
           }
         }
@@ -1381,6 +1450,10 @@ class Utils {
 
             utxo.mintBatonVout = slpData.mintBatonVout
 
+            // Initial value is null until UTXO can be validated and confirmed
+            // to be valid (true) or not (false).
+            utxo.isValid = null
+
             outAry[i] = utxo
           }
         }
@@ -1422,6 +1495,10 @@ class Utils {
             utxo.decimals = genesisData.decimals
             utxo.tokenType = slpData.tokenType
 
+            // Initial value is null until UTXO can be validated and confirmed
+            // to be valid (true) or not (false).
+            utxo.isValid = null
+
             // Calculate the real token quantity.
 
             const tokenQtyBig = new BigNumber(tokenQty).div(
@@ -1439,7 +1516,7 @@ class Utils {
 
       return outAry
     } catch (error) {
-      if (error.response && error.response.data) throw error.response.data
+      // console.log('_hydrateUtxo error: ', error)
       throw error
     }
   }
@@ -1511,25 +1588,31 @@ class Utils {
       // Note: validateTxid3() has the same output as validateTxid().
       // validateTxid2() uses slp-validate, which has a different output format.
 
-      // Validate against the whitelist SLPDB first.
-      const whitelistResult = await this.validateTxid3(txid, usrObj)
-      // console.log(
-      //   `whitelist-SLPDB for ${txid}: ${JSON.stringify(
-      //     whitelistResult,
-      //     null,
-      //     2
-      //   )}`
-      // )
+      // If the whitelist SLPDB is having issues, the try/catch will skip it
+      // and continue execution.
+      try {
+        // Validate against the whitelist SLPDB first.
+        const whitelistResult = await this.validateTxid3(txid, usrObj)
+        // console.log(
+        //   `whitelist-SLPDB for ${txid}: ${JSON.stringify(
+        //     whitelistResult,
+        //     null,
+        //     2
+        //   )}`
+        // )
 
-      // Safely retrieve the returned value.
-      if (whitelistResult[0] !== null) isValid = whitelistResult[0].valid
+        // Safely retrieve the returned value.
+        if (whitelistResult[0] !== null) isValid = whitelistResult[0].valid
 
-      // Exit if isValid is not null.
-      if (isValid !== null) {
-        // Save to the cache.
-        cachedTxValidation[txid] = isValid
+        // Exit if isValid is not null.
+        if (isValid !== null) {
+          // Save to the cache.
+          cachedTxValidation[txid] = isValid
 
-        return isValid
+          return isValid
+        }
+      } catch {
+        /* exit quietly */
       }
 
       // Try the general SLPDB, if the whitelist returned null.
@@ -1574,6 +1657,12 @@ class Utils {
       // could not be validated.
       return isValid
     } catch (error) {
+      // This case handles rate limit errors.
+      if (error.response && error.response.data && error.response.data.error) {
+        throw new Error(error.response.data.error)
+      }
+
+      // console.log('Error in waterfallValidateTxid()')
       if (error.response && error.response.data) throw error.response.data
       throw error
     }
@@ -1586,22 +1675,33 @@ class Utils {
    * @apiDescription Hydrate a UTXO with SLP token metadata.
    *
    * The same as tokenUtxoDetails(), but uses bch-api to do the heavy lifting,
-   * which greatly reduces the number of API calls.
+   * which greatly increases the speed, since fewer API calls need to be made.
+   * However, internal API calls are still counted against your rate limits.
    *
-   * Expects an array of UTXO objects as input. Returns an array of equal size.
-   * Returns UTXO data hydrated with token information.
-   * If the
-   * UTXO does not belong to a SLP transaction, it will return an `isValid` property
-   * set to false.
-   * If the UTXO is part of an SLP transaction, it will return the UTXO object
-   * with additional SLP information attached. An `isValid` property will be included.
-   * If its value is true, the UTXO is a valid SLP UTXO.
-   * If the isValid value is null,
-   * then SLPDB has not yet processed that txid and validity has not been confirmed,
-   * or a 429 rate-limit error was enountered during the processing of the request.
+   * This function expects an array of UTXO objects as input. It returns an
+   * array of equal size. The UTXO data hydrated with token information.
+   * - If the UTXO does not belong to a SLP transaction, it will return an
+   *   `isValid` property set to `false`.
+   * - If the UTXO is part of an SLP transaction, it will return the UTXO object
+   *   with additional SLP information attached. An `isValid` property will be
+   *   included.
+   *     - If `isValid` is `true`, the UTXO is a valid SLP UTXO.
+   *     - If `isValid` is `null`, then SLPDB has not yet processed that txid
+   *       and validity has not been confirmed,
+   *       or a 429 rate-limit error was enountered during the processing of the
+   *       request.
    *
-   * This is an API-heavy call. If you get a lot of null values, then slow down
-   * the calls or request info on fewer UTXOs at a time.
+   * An optional second input object, `usrObj`, allows the user to inject an
+   * artifical delay while processing UTXOs. If `usrObj.utxoDelay` is set to
+   * a number, the call will delay by that number of milliseconds between
+   * processing UTXOs.
+   *
+   * This is an API-heavy call. If you get a lot of `null` values, then slow down
+   * the calls by using the usrObj.utxoDelay property, or request info on fewer
+   * UTXOs at a
+   * time. `null` indicates that the UTXO can *not* be safely spent, because
+   * a judgement as to weather it is a token UTXO has not been made. Spending it
+   * could burn tokens. It's safest to ignore UTXOs with a value of `null`.
    *
    * @apiExample Example usage:
    *
@@ -1613,7 +1713,8 @@ class Utils {
    *   "bitcoincash:qzygn28zpgeemnptkn26xzyuzzfu9l8f9vfvq7kptk"
    *  ])
    *
-   *  const utxoInfo = await bchjs.SLP.Utils.hydrateUtxos(utxos.utxos)
+   *  // Wait 100mS between processing UTXOs, to prevent rate limit errors.
+   *  const utxoInfo = await bchjs.SLP.Utils.hydrateUtxos(utxos.utxos, { utxoDelay: 100 })
    *
    *  console.log(`${JSON.stringify(utxoInfo, null, 2)}`)
    * } catch (error) {
@@ -1747,7 +1848,7 @@ class Utils {
    */
   // Same as tokenUtxoDetails(), but reduces API calls by having bch-api server
   // do the heavy lifting.
-  async hydrateUtxos (utxos) {
+  async hydrateUtxos (utxos, usrObj) {
     try {
       // Throw error if input is not an array.
       if (!Array.isArray(utxos)) throw new Error('Input must be an array.')
@@ -1755,15 +1856,20 @@ class Utils {
       const response = await _this.axios.post(
         `${this.restURL}slp/hydrateUtxos`,
         {
-          utxos: utxos
+          utxos: utxos,
+          usrObj
         },
-        _this.axiosOptions
+        this.axiosOptions
       )
 
       return response.data
     } catch (error) {
-      if (error.response && error.response.data) throw error.response.data
-      else throw error
+      console.log('Error in hydrateUtxos(): ', error)
+
+      if (error.response && error.response.data) {
+        throw new Error(JSON.stringify(error.response.data, null, 2))
+      }
+      throw error
     }
   }
 
@@ -1793,7 +1899,7 @@ class Utils {
         {
           utxos: utxos
         },
-        _this.axiosOptions
+        this.axiosOptions
       )
 
       return response.data
@@ -1833,7 +1939,7 @@ class Utils {
     const path = `${this.restURL}slp/status`
 
     try {
-      const response = await _this.axios.get(path, _this.axiosOptions)
+      const response = await _this.axios.get(path, this.axiosOptions)
       // console.log(
       //   `getStatus response.data: ${JSON.stringify(response.data, null, 2)}`
       // )

src/transaction.js

@@ -0,0 +1,159 @@
+/*
+  High-level functions for working with Transactions
+*/
+
+const RawTransaction = require('./raw-transactions')
+const SlpUtils = require('./slp/utils')
+
+class Transaction {
+  constructor (config) {
+    // Encapsulate dependencies
+    this.slpUtils = new SlpUtils(config)
+    this.rawTransaction = new RawTransaction(config)
+  }
+
+  /**
+   * @api Transaction.get() get()
+   * @apiName get
+   * @apiGroup Transaction
+   * @apiDescription
+   * Returns an object of transaction data, including addresses for input UTXOs.
+   * If it is a SLP token transaction, the token information for inputs and
+   * outputs will also be included.
+   *
+   * This is an API heavy call. This function will only work with a single txid.
+   * It does not yet support an array of TXIDs.
+   *
+   * @apiExample Example usage:
+   * (async () => {
+   * try {
+   *  let txData = await bchjs.Transaction.get("0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098");
+   *  console.log(txData);
+   * } catch(error) {
+   * console.error(error)
+   * }
+   * })()
+   */
+  async get (txid) {
+    try {
+      if (typeof txid !== 'string') {
+        throw new Error(
+          'Input to Transaction.get() must be a string containing a TXID.'
+        )
+      }
+
+      const txDetails = await this.rawTransaction.getTxData(txid)
+      // console.log(`txDetails: ${JSON.stringify(txDetails, null, 2)}`)
+
+      // Setup default SLP properties.
+      txDetails.isValidSLPTx = false
+
+      // First get the token information for the output. If that fails, then
+      // this is not an SLP transaction, and this method can return false.
+      let outTokenData
+      try {
+        outTokenData = await this.slpUtils.decodeOpReturn(txid)
+        // console.log(`outTokenData: ${JSON.stringify(outTokenData, null, 2)}`)
+
+        // Get Genesis data for this token.
+        const genesisData = await this.slpUtils.decodeOpReturn(
+          outTokenData.tokenId
+          // decodeOpReturnCache
+          // usrObj // pass user data when making an internal call.
+        )
+        // console.log(`genesisData: ${JSON.stringify(genesisData, null, 2)}`)
+
+        // Add token information to the tx details object.
+        txDetails.tokenTxType = outTokenData.txType
+        txDetails.tokenId = outTokenData.tokenId
+        txDetails.tokenTicker = genesisData.ticker
+        txDetails.tokenName = genesisData.name
+        txDetails.tokenDecimals = genesisData.decimals
+        txDetails.tokenUri = genesisData.documentUri
+        txDetails.tokenDocHash = genesisData.documentHash
+
+        // Add the token quantity to each output.
+        for (let i = 0; i < outTokenData.amounts.length; i++) {
+          const rawQty = outTokenData.amounts[i]
+          const realQty = Number(rawQty) / Math.pow(10, txDetails.tokenDecimals)
+
+          txDetails.vout[i + 1].tokenQty = realQty
+        }
+
+        // Add tokenQty = null to any outputs that don't have a value.
+        for (let i = 0; i < txDetails.vout.length; i++) {
+          const thisVout = txDetails.vout[i]
+
+          if (!thisVout.tokenQty && thisVout.tokenQty !== 0) {
+            thisVout.tokenQty = null
+          }
+        }
+
+        // Loop through each input and retrieve the token data.
+        for (let i = 0; i < txDetails.vin.length; i++) {
+          const thisVin = txDetails.vin[i]
+
+          try {
+            // If decodeOpReturn() throws an error, then this input is not
+            // from an SLP transaction and can be ignored.
+            const inTokenData = await this.slpUtils.decodeOpReturn(thisVin.txid)
+            // console.log(
+            //   `vin[${i}] tokenData: ${JSON.stringify(inTokenData, null, 2)}`
+            // )
+
+            // Get the appropriate vout token amount. This may throw an error,
+            // which means this Vin is not actually a token UTXO, it was just
+            // associated with a previous token TX.
+            const tokenQty = inTokenData.amounts[thisVin.vout - 1]
+            // console.log(`tokenQty: ${JSON.stringify(tokenQty, null, 2)}`)
+
+            if (tokenQty) {
+              const realQty =
+                Number(tokenQty) / Math.pow(10, txDetails.tokenDecimals)
+
+              thisVin.tokenQty = realQty
+              // txDetails.vin[i].tokenQty = tokenQty
+            } else {
+              thisVin.tokenQty = null
+            }
+          } catch (err) {
+            // If decodeOpReturn() throws an error, then this input is not
+            // from an SLP transaction and can be ignored.
+            // thisVin.tokenQty = null
+            thisVin.tokenQty = null
+            continue
+          }
+        }
+
+        // Finally, validate the SLP TX.
+        // this.slpUtils.waterfallValidateTxid(txid, usrObj)
+        txDetails.isValidSLPTx = await this.slpUtils.waterfallValidateTxid(txid)
+      } catch (err) {
+        // console.log('Error: ', err)
+
+        // This case handles rate limit errors.
+        if (err.response && err.response.data && err.response.data.error) {
+          throw new Error(err.response.data.error)
+        }
+
+        // If decoding the op_return fails, then it's not an SLP transaction,
+        // and the non-hyrated TX details can be returned.
+        return txDetails
+      }
+
+      return txDetails
+    } catch (err) {
+      // console.error('Error in transactions.js/get(): ', err)
+
+      // This case handles rate limit errors.
+      if (err.response && err.response.data && err.response.data.error) {
+        throw new Error(err.response.data.error)
+      }
+
+      if (err.error) throw new Error(err.error)
+      throw err
+    }
+  }
+}
+
+module.exports = Transaction

src/util.js

@@ -1,6 +1,6 @@
 const axios = require('axios')
 
-let _this
+// let _this
 
 class Util {
   constructor (config) {
@@ -24,11 +24,11 @@ class Util {
       }
     }
 
-    _this = this
+    // _this = this
   }
 
   /**
-   * @api util.floor8() floor8()
+   * @api Util.floor8() floor8()
    * @apiName floor8
    * @apiGroup Util
    * @apiDescription Round a number down to 8 decimal places.
@@ -63,7 +63,7 @@ class Util {
   }
 
   /**
-   * @api util.floor2() floor2()
+   * @api Util.floor2() floor2()
    * @apiName floor2
    * @apiGroup Util
    * @apiDescription Round a number down to 2 decimal places.
@@ -98,7 +98,7 @@ class Util {
   }
 
   /**
-   * @api util.chunk20() chunk20()
+   * @api Util.chunk20() chunk20()
    * @apiName chunk20
    * @apiGroup Util
    * @apiDescription chunk up an array into multiple arrays of 20 elements each.
@@ -151,7 +151,7 @@ class Util {
   }
 
   /**
-   * @api util.sleep() sleep()
+   * @api Util.sleep() sleep()
    * @apiName sleep
    * @apiGroup Util
    * @apiDescription Promise-based delay.
@@ -175,7 +175,7 @@ class Util {
   }
 
   /**
-   * @api util.validateAddress() validateAddress()
+   * @api Util.validateAddress() validateAddress()
    * @apiName Validate Address.
    * @apiGroup Util
    * @apiDescription Return information about the given bitcoin address.
@@ -225,7 +225,7 @@ class Util {
       if (typeof address === 'string') {
         const response = await axios.get(
           `${this.restURL}util/validateAddress/${address}`,
-          _this.axiosOptions
+          this.axiosOptions
         )
         return response.data
 

src/utxo.js

@@ -276,6 +276,8 @@ class UTXO {
       return retAry
     } catch (err) {
       console.error('Error in bchjs.utxo.get()')
+
+      if (err.error) throw new Error(err.error)
       throw err
     }
   }

test/e2e/rate-limits/anonymous-rate-limits.js

@@ -14,9 +14,9 @@
 
 const assert = require('chai').assert
 
-// const RESTURL = `https://abc.fullstack.cash/v4/`
-const RESTURL = 'https://bchn.fullstack.cash/v4/'
-// const RESTURL = `http://localhost:3000/v4/`
+// const RESTURL = `https://abc.fullstack.cash/v5/`
+const RESTURL = 'https://bchn.fullstack.cash/v5/'
+// const RESTURL = `http://localhost:3000/v5/`
 
 const BCHJS = require('../../../src/bch-js')
 const bchjs = new BCHJS({ restURL: RESTURL })

test/e2e/rate-limits/basic-auth-rate-limits.js

@@ -13,9 +13,9 @@ const PRO_PASS = 'testpassword'
 
 const BCHJS = require('../../../src/bch-js')
 const bchjs = new BCHJS({
-  // restURL: `https://bchn.fullstack.cash/v4/`,
-  restURL: 'https://abc.fullstack.cash/v4/',
-  // restURL: `http://localhost:3000/v4/`,
+  // restURL: `https://bchn.fullstack.cash/v5/`,
+  restURL: 'https://abc.fullstack.cash/v5/',
+  // restURL: `http://localhost:3000/v5/`,
   authPass: PRO_PASS
 })
 

test/e2e/rate-limits/free-rate-limits.js

@@ -18,8 +18,8 @@ const JWT_TOKEN =
 
 const BCHJS = require('../../../src/bch-js')
 const bchjs = new BCHJS({
-  restURL: 'https://api.fullstack.cash/v4/',
-  // restURL: `http://localhost:3000/v4/`,
+  restURL: 'https://api.fullstack.cash/v5/',
+  // restURL: `http://localhost:3000/v5/`,
   apiToken: JWT_TOKEN
 })
 

test/e2e/rate-limits/full-node-rate-limits.js

@@ -18,9 +18,9 @@ const JWT_TOKEN =
 
 const BCHJS = require('../../../src/bch-js')
 const bchjs = new BCHJS({
-  // restURL: `https://bchn.fullstack.cash/v4/`,
-  restURL: 'https:/abc.fullstack.cash/v4/',
-  // restURL: `http://localhost:3000/v4/`,
+  // restURL: `https://bchn.fullstack.cash/v5/`,
+  restURL: 'https:/abc.fullstack.cash/v5/',
+  // restURL: `http://localhost:3000/v5/`,
   apiToken: JWT_TOKEN
 })
 
@@ -65,7 +65,7 @@ describe('#full node rate limits', () => {
 
   it('should throw error for more than 100 RPM to fullnode', async () => {
     try {
-      console.log('This test usually doesn\'t pass, because of latency.')
+      console.log("This test usually doesn't pass, because of latency.")
       for (let i = 0; i < 100; i++) await bchjs.Control.getNetworkInfo()
     } catch (err) {
       // console.log(`validating after 10th call`)

test/e2e/rate-limits/indexer-rate-limits.js

@@ -14,9 +14,9 @@ const JWT_TOKEN =
 
 const BCHJS = require('../../../src/bch-js')
 const bchjs = new BCHJS({
-  // restURL: `https://bchn.fullstack.cash/v4/`,
-  restURL: 'https://abc.fullstack.cash/v4/',
-  // restURL: `http://localhost:3000/v4/`,
+  // restURL: `https://bchn.fullstack.cash/v5/`,
+  restURL: 'https://abc.fullstack.cash/v5/',
+  // restURL: `http://localhost:3000/v5/`,
   apiToken: JWT_TOKEN
 })
 

test/integration/blockchain.js

@@ -276,6 +276,43 @@ describe('#blockchain', () => {
       assert.equal(result, null)
     })
   })
+  describe('#getBlock', () => {
+    it('should get block information with default verbosity', async () => {
+      const blockhash =
+        '0000000000000000008e8d83cba6d45a9314bc2ef4538d4e0577c6bed8593536'
+      const result = await bchjs.Blockchain.getBlock(blockhash)
+
+      assert.hasAllKeys(result, [
+        'hash',
+        'confirmations',
+        'size',
+        'height',
+        'version',
+        'versionHex',
+        'merkleroot',
+        'tx',
+        'time',
+        'mediantime',
+        'nonce',
+        'bits',
+        'difficulty',
+        'chainwork',
+        'nTx',
+        'previousblockhash',
+        'nextblockhash'
+      ])
+      assert.isArray(result.tx)
+    })
+
+    it('should get block information with verbosity 0', async () => {
+      const blockhash =
+        '0000000000000000008e8d83cba6d45a9314bc2ef4538d4e0577c6bed8593536'
+      const verbosity = 0
+      const result = await bchjs.Blockchain.getBlock(blockhash, verbosity)
+
+      assert.isString(result)
+    })
+  })
 })
 
 function sleep (ms) {

test/integration/chains/bchn-no-wl-slpdb/rawtransaction.js

@@ -0,0 +1,71 @@
+/*
+  Integration tests for the bchjs. Only covers calls made to
+  rest.bitcoin.com.
+
+  TODO
+*/
+
+const chai = require('chai')
+const assert = chai.assert
+const BCHJS = require('../../../../src/bch-js')
+const bchjs = new BCHJS()
+
+// Inspect utility used for debugging.
+const util = require('util')
+util.inspect.defaultOptions = {
+  showHidden: true,
+  colors: true,
+  depth: 3
+}
+
+describe('#rawtransaction', () => {
+  beforeEach(async () => {
+    if (process.env.IS_USING_FREE_TIER) await sleep(3000)
+  })
+
+  /*
+    Testing sentRawTransaction isn't really possible with an integration test,
+    as the endpoint really needs an e2e test to be properly tested. The tests
+    below expect error messages returned from the server, but at least test
+    that the server is responding on those endpoints, and responds consistently.
+  */
+  describe('sendRawTransaction', () => {
+    it('should send a single transaction hex', async () => {
+      try {
+        const hex =
+          '01000000013ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a000000006a4730440220540986d1c58d6e76f8f05501c520c38ce55393d0ed7ed3c3a82c69af04221232022058ea43ed6c05fec0eccce749a63332ed4525460105346f11108b9c26df93cd72012103083dfc5a0254613941ddc91af39ff90cd711cdcde03a87b144b883b524660c39ffffffff01807c814a000000001976a914d7e7c4e0b70eaa67ceff9d2823d1bbb9f6df9a5188ac00000000'
+
+        await bchjs.RawTransactions.sendRawTransaction(hex)
+        // console.log(`result ${JSON.stringify(result, null, 2)}`)
+
+        assert.equal(true, false, 'Unexpected result!')
+      } catch (err) {
+        // console.log(`err: ${util.inspect(err)}`)
+
+        assert.hasAllKeys(err, ['error'])
+        assert.include(err.error, 'Missing inputs')
+      }
+    })
+
+    it('should send an array of tx hexes', async () => {
+      try {
+        const hexes = [
+          '01000000013ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a000000006a4730440220540986d1c58d6e76f8f05501c520c38ce55393d0ed7ed3c3a82c69af04221232022058ea43ed6c05fec0eccce749a63332ed4525460105346f11108b9c26df93cd72012103083dfc5a0254613941ddc91af39ff90cd711cdcde03a87b144b883b524660c39ffffffff01807c814a000000001976a914d7e7c4e0b70eaa67ceff9d2823d1bbb9f6df9a5188ac00000000',
+          '01000000013ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a000000006a4730440220540986d1c58d6e76f8f05501c520c38ce55393d0ed7ed3c3a82c69af04221232022058ea43ed6c05fec0eccce749a63332ed4525460105346f11108b9c26df93cd72012103083dfc5a0254613941ddc91af39ff90cd711cdcde03a87b144b883b524660c39ffffffff01807c814a000000001976a914d7e7c4e0b70eaa67ceff9d2823d1bbb9f6df9a5188ac00000000'
+        ]
+
+        const result = await bchjs.RawTransactions.sendRawTransaction(hexes)
+        console.log(`result ${JSON.stringify(result, null, 2)}`)
+      } catch (err) {
+        // console.log(`err: ${util.inspect(err)}`)
+
+        assert.hasAllKeys(err, ['error'])
+        assert.include(err.error, 'Missing inputs')
+      }
+    })
+  })
+})
+
+function sleep (ms) {
+  return new Promise(resolve => setTimeout(resolve, ms))
+}

test/integration/chains/bchn-no-wl-slpdb/slp.js

@@ -0,0 +1,273 @@
+/*
+  Integration tests for the bchjs covering SLP tokens.
+  These tests are specific to the ABC chain.
+*/
+
+const chai = require('chai')
+const assert = chai.assert
+
+const BCHJS = require('../../../../src/bch-js')
+let bchjs
+
+// Inspect utility used for debugging.
+const util = require('util')
+util.inspect.defaultOptions = {
+  showHidden: true,
+  colors: true,
+  depth: 1
+}
+
+describe('#SLP', () => {
+  // before(() => {
+  //   console.log(`bchjs.SLP.restURL: ${bchjs.SLP.restURL}`)
+  //   console.log(`bchjs.SLP.apiToken: ${bchjs.SLP.apiToken}`)
+  // })
+
+  beforeEach(async () => {
+    // Introduce a delay so that the BVT doesn't trip the rate limits.
+    if (process.env.IS_USING_FREE_TIER) await sleep(3000)
+
+    bchjs = new BCHJS()
+  })
+
+  describe('#util', () => {
+    describe('#decodeOpReturn', () => {
+      it('should decode a NFT Child transaction', async () => {
+        const txid =
+          'eeddccc4d716f04157ea132ac93a48040fea34a6b57f3d8f0cccb7d1a731ab2b'
+
+        const data = await bchjs.SLP.Utils.decodeOpReturn(txid)
+        // console.log(`data: ${JSON.stringify(data, null, 2)}`)
+
+        assert.property(data, 'tokenType')
+        assert.property(data, 'txType')
+        assert.property(data, 'ticker')
+        assert.property(data, 'name')
+        assert.property(data, 'tokenId')
+        assert.property(data, 'documentUri')
+        assert.property(data, 'documentHash')
+        assert.property(data, 'decimals')
+        assert.property(data, 'mintBatonVout')
+        assert.property(data, 'qty')
+
+        assert.equal(data.tokenType, 65)
+        assert.equal(data.mintBatonVout, 0)
+        assert.equal(data.qty, '1')
+      })
+    })
+
+    describe('#tokenUtxoDetails', () => {
+      it('should handle a range of UTXO types', async () => {
+        const utxos = [
+          // Malformed SLP tx
+          {
+            note: 'Malformed SLP tx',
+            tx_hash:
+              'f7e5199ef6669ad4d078093b3ad56e355b6ab84567e59ad0f08a5ad0244f783a',
+            tx_pos: 1,
+            value: 546
+          },
+          // Normal TX (non-SLP)
+          {
+            note: 'Normal TX (non-SLP)',
+            tx_hash:
+              '01cdaec2f8b311fc2d6ecc930247bd45fa696dc204ab684596e281fe1b06c1f0',
+            tx_pos: 0,
+            value: 400000
+          },
+          // Valid PSF SLP tx
+          {
+            note: 'Valid PSF SLP tx',
+            tx_hash:
+              'daf4d8b8045e7a90b7af81bfe2370178f687da0e545511bce1c9ae539eba5ffd',
+            tx_pos: 1,
+            value: 546
+          },
+          // Valid SLP token not in whitelist
+          {
+            note: 'Valid SLP token not in whitelist',
+            tx_hash:
+              '3a4b628cbcc183ab376d44ce5252325f042268307ffa4a53443e92b6d24fb488',
+            tx_pos: 1,
+            value: 546
+          },
+          // Token send on BCHN network.
+          {
+            note: 'Token send on BCHN network',
+            tx_hash:
+              '402c663379d9699b6e2dd38737061e5888c5a49fca77c97ab98e79e08959e019',
+            tx_pos: 1,
+            value: 546
+          },
+          // Token send on ABC network.
+          {
+            note: 'Token send on ABC network',
+            tx_hash:
+              '336bfe2168aac4c3303508a9e8548a0d33797a83b85b76a12d845c8d6674f79d',
+            tx_pos: 1,
+            value: 546
+          },
+          // Known invalid SLP token send of PSF tokens.
+          {
+            note: 'Known invalid SLP token send of PSF tokens',
+            tx_hash:
+              '2bf691ad3679d928fef880b8a45b93b233f8fa0d0a92cf792313dbe77b1deb74',
+            tx_pos: 1,
+            value: 546
+          }
+        ]
+
+        const data = await bchjs.SLP.Utils.tokenUtxoDetails(utxos)
+        // console.log(`data: ${JSON.stringify(data, null, 2)}`)
+
+        // Malformed SLP tx
+        assert.equal(data[0].tx_hash, utxos[0].tx_hash)
+        assert.equal(data[0].isValid, false)
+
+        // Normal TX (non-SLP)
+        assert.equal(data[1].tx_hash, utxos[1].tx_hash)
+        assert.equal(data[1].isValid, false)
+
+        // Valid PSF SLP tx
+        assert.equal(data[2].tx_hash, utxos[2].tx_hash)
+        assert.equal(data[2].isValid, true)
+
+        // Valid SLP token not in whitelist
+        assert.equal(data[3].tx_hash, utxos[3].tx_hash)
+        assert.equal(data[3].isValid, true)
+
+        // Token send on BCHN network
+        assert.equal(data[4].tx_hash, utxos[4].tx_hash)
+        assert.equal(data[4].isValid, true)
+
+        // Token send on ABC network
+        assert.equal(data[5].tx_hash, utxos[5].tx_hash)
+        assert.equal(data[5].isValid, null)
+
+        // Known invalid SLP token send of PSF tokens
+        assert.equal(data[6].tx_hash, utxos[6].tx_hash)
+        assert.equal(data[6].isValid, false)
+      })
+    })
+
+    describe('#validateTxid3', () => {
+      it('should invalidate a known invalid TXID', async () => {
+        const txid =
+          'f7e5199ef6669ad4d078093b3ad56e355b6ab84567e59ad0f08a5ad0244f783a'
+
+        const result = await bchjs.SLP.Utils.validateTxid3(txid)
+        // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+        assert.isArray(result)
+
+        assert.property(result[0], 'txid')
+        assert.equal(result[0].txid, txid)
+
+        assert.property(result[0], 'valid')
+        assert.equal(result[0].valid, null)
+      })
+
+      it('should validate a known valid TXID', async () => {
+        const txid =
+          'daf4d8b8045e7a90b7af81bfe2370178f687da0e545511bce1c9ae539eba5ffd'
+
+        const result = await bchjs.SLP.Utils.validateTxid3(txid)
+        // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+        assert.isArray(result)
+
+        assert.property(result[0], 'txid')
+        assert.equal(result[0].txid, txid)
+
+        assert.property(result[0], 'valid')
+        assert.equal(result[0].valid, true)
+      })
+
+      it('should handle a mix of valid, invalid, and non-SLP txs', async () => {
+        const txids = [
+          // Malformed SLP tx
+          'f7e5199ef6669ad4d078093b3ad56e355b6ab84567e59ad0f08a5ad0244f783a',
+          // Normal TX (non-SLP)
+          '01cdaec2f8b311fc2d6ecc930247bd45fa696dc204ab684596e281fe1b06c1f0',
+          // Valid PSF SLP tx
+          'daf4d8b8045e7a90b7af81bfe2370178f687da0e545511bce1c9ae539eba5ffd',
+          // Valid SLP token not in whitelist
+          '3a4b628cbcc183ab376d44ce5252325f042268307ffa4a53443e92b6d24fb488',
+          // Unprocessed SLP TX
+          '402c663379d9699b6e2dd38737061e5888c5a49fca77c97ab98e79e08959e019'
+        ]
+
+        const result = await bchjs.SLP.Utils.validateTxid3(txids)
+        // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+        assert.isArray(result)
+
+        assert.equal(result[0].txid, txids[0])
+        assert.equal(result[0].valid, null)
+
+        assert.equal(result[1].txid, txids[1])
+        assert.equal(result[1].valid, null)
+
+        assert.equal(result[2].txid, txids[2])
+        assert.equal(result[2].valid, true)
+
+        // True in validateTxid() (no whitelist SLPDB) but null in validateTxid3()
+        assert.equal(result[3].txid, txids[3])
+        assert.equal(result[3].valid, true)
+
+        // Note: This should change from null to true once SLPDB finishes indexing.
+        assert.equal(result[4].txid, txids[4])
+        // True when no whitelist SLPDB is used.
+        assert.equal(result[4].valid, true)
+      })
+    })
+
+    describe('#validateTxid', () => {
+      it('should handle a mix of valid, invalid, and non-SLP txs', async () => {
+        const txids = [
+          // Malformed SLP tx
+          'f7e5199ef6669ad4d078093b3ad56e355b6ab84567e59ad0f08a5ad0244f783a',
+          // Normal TX (non-SLP)
+          '01cdaec2f8b311fc2d6ecc930247bd45fa696dc204ab684596e281fe1b06c1f0',
+          // Valid PSF SLP tx
+          'daf4d8b8045e7a90b7af81bfe2370178f687da0e545511bce1c9ae539eba5ffd',
+          // Valid SLP token not in whitelist
+          '3a4b628cbcc183ab376d44ce5252325f042268307ffa4a53443e92b6d24fb488',
+          // Token send on BCHN network.
+          '402c663379d9699b6e2dd38737061e5888c5a49fca77c97ab98e79e08959e019',
+          // Token send on ABC network.
+          '336bfe2168aac4c3303508a9e8548a0d33797a83b85b76a12d845c8d6674f79d'
+        ]
+
+        const result = await bchjs.SLP.Utils.validateTxid(txids)
+        // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+        assert.isArray(result)
+
+        assert.equal(result[0].txid, txids[0])
+        assert.equal(result[0].valid, null)
+
+        assert.equal(result[1].txid, txids[1])
+        assert.equal(result[1].valid, null)
+
+        assert.equal(result[2].txid, txids[2])
+        assert.equal(result[2].valid, true)
+
+        // True in validateTxid() but null in validateTxid3()
+        assert.equal(result[3].txid, txids[3])
+        assert.equal(result[3].valid, true)
+
+        assert.equal(result[4].txid, txids[4])
+        assert.equal(result[4].valid, true)
+
+        assert.equal(result[5].txid, txids[5])
+        assert.equal(result[5].valid, null)
+      })
+    })
+  })
+})
+
+// Promise-based sleep function
+function sleep (ms) {
+  return new Promise(resolve => setTimeout(resolve, ms))
+}

test/integration/chains/bchn-no-wl-slpdb/utxo-integration.js

@@ -0,0 +1,105 @@
+/*
+  Integration tests for the utxo.js library.
+*/
+
+const assert = require('chai').assert
+
+const BCHJS = require('../../../../src/bch-js')
+const bchjs = new BCHJS()
+
+describe('#UTXO', () => {
+  beforeEach(async () => {
+    // sandbox = sinon.createSandbox()
+
+    if (process.env.IS_USING_FREE_TIER) await sleep(3000)
+  })
+
+  describe('#get', () => {
+    it('should get hydrated and filtered UTXOs for an address', async () => {
+      // const addr = 'bitcoincash:qqh793x9au6ehvh7r2zflzguanlme760wuzehgzjh9'
+      const addr = 'simpleledger:qzv3zz2trz0xgp6a96lu4m6vp2nkwag0kvyucjzqt9'
+
+      const result = await bchjs.Utxo.get(addr)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      assert.isArray(result)
+      assert.property(result[0], 'address')
+      assert.property(result[0], 'bchUtxos')
+      assert.property(result[0], 'nullUtxos')
+      assert.property(result[0], 'slpUtxos')
+      assert.isArray(result[0].bchUtxos)
+      assert.isArray(result[0].nullUtxos)
+    })
+
+    it('should handle an array of addresses', async () => {
+      const addr = [
+        'simpleledger:qzv3zz2trz0xgp6a96lu4m6vp2nkwag0kvyucjzqt9',
+        'bitcoincash:qqh793x9au6ehvh7r2zflzguanlme760wuzehgzjh9'
+      ]
+
+      const result = await bchjs.Utxo.get(addr)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      assert.isArray(result)
+      assert.property(result[0], 'address')
+      assert.property(result[0], 'bchUtxos')
+      assert.property(result[0], 'nullUtxos')
+      assert.property(result[0], 'slpUtxos')
+      assert.isArray(result[0].bchUtxos)
+      assert.isArray(result[0].nullUtxos)
+    })
+
+    it('should handle NFTs and minting batons', async () => {
+      const addr = 'simpleledger:qrm0c67wwqh0w7wjxua2gdt2xggnm90xwsr5k22euj'
+
+      const result = await bchjs.Utxo.get(addr)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      assert.isArray(result)
+      assert.property(result[0], 'address')
+      assert.property(result[0], 'bchUtxos')
+      assert.property(result[0], 'nullUtxos')
+      assert.property(result[0], 'slpUtxos')
+      assert.isArray(result[0].bchUtxos)
+      assert.isArray(result[0].nullUtxos)
+
+      assert.isArray(result[0].slpUtxos.type1.mintBatons)
+      assert.isArray(result[0].slpUtxos.type1.tokens)
+      assert.isArray(result[0].slpUtxos.nft.groupMintBatons)
+      assert.isArray(result[0].slpUtxos.nft.groupTokens)
+      assert.isArray(result[0].slpUtxos.nft.tokens)
+    })
+  })
+
+  describe('#findBiggestUtxo', () => {
+    it('should sort UTXOs from Electrumx', async () => {
+      const addr = 'bitcoincash:qq54fgjn3hz0357n8a6guy4demw9xfkjk5jcj0xr0z'
+
+      const electrumxUtxos = await bchjs.Electrumx.utxo(addr)
+      // console.log(`Electrumx utxos: ${JSON.stringify(electrumxUtxos, null, 2)}`)
+
+      const result = bchjs.Utxo.findBiggestUtxo(electrumxUtxos.utxos)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      assert.property(result, 'satoshis')
+      assert.equal(result.satoshis, 800)
+    })
+
+    it('should sort UTXOs from Utxos.get()', async () => {
+      const addr = 'bitcoincash:qq54fgjn3hz0357n8a6guy4demw9xfkjk5jcj0xr0z'
+
+      const utxos = await bchjs.Utxo.get(addr)
+      // console.log(`utxos: ${JSON.stringify(utxos, null, 2)}`)
+
+      const result = bchjs.Utxo.findBiggestUtxo(utxos[0].bchUtxos)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      assert.property(result, 'satoshis')
+      assert.equal(result.satoshis, 800)
+    })
+  })
+})
+
+function sleep (ms) {
+  return new Promise(resolve => setTimeout(resolve, ms))
+}

test/integration/chains/bchn/dsproof.js

@@ -0,0 +1,25 @@
+/*
+  Integration tests for bchjs dsproof library.
+*/
+
+const assert = require('chai').assert
+
+const BCHJS = require('../../../../src/bch-js')
+const bchjs = new BCHJS()
+
+describe('#DSProof', () => {
+  beforeEach(async () => {
+    if (process.env.IS_USING_FREE_TIER) await bchjs.Util.sleep(1000)
+  })
+
+  describe('#getDSProof', () => {
+    it('should get TX info from the full node', async () => {
+      const txid =
+        'ee0df780b58f6f24467605b2589c44c3a50fc849fb8f91b89669a4ae0d86bc7e'
+      const result = await bchjs.DSProof.getDSProof(txid)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      assert.equal(result, null)
+    })
+  })
+})

test/integration/chains/bchn/rawtransaction.js

@@ -20,7 +20,7 @@ util.inspect.defaultOptions = {
 
 describe('#rawtransaction', () => {
   beforeEach(async () => {
-    if (process.env.IS_USING_FREE_TIER) await sleep(1000)
+    if (process.env.IS_USING_FREE_TIER) await sleep(3000)
   })
 
   /*

test/integration/chains/bchn/slp.js

@@ -25,12 +25,37 @@ describe('#SLP', () => {
 
   beforeEach(async () => {
     // Introduce a delay so that the BVT doesn't trip the rate limits.
-    if (process.env.IS_USING_FREE_TIER) await sleep(1000)
+    if (process.env.IS_USING_FREE_TIER) await sleep(3000)
 
     bchjs = new BCHJS()
   })
 
   describe('#util', () => {
+    describe('#decodeOpReturn', () => {
+      it('should decode a NFT Child transaction', async () => {
+        const txid =
+          'eeddccc4d716f04157ea132ac93a48040fea34a6b57f3d8f0cccb7d1a731ab2b'
+
+        const data = await bchjs.SLP.Utils.decodeOpReturn(txid)
+        // console.log(`data: ${JSON.stringify(data, null, 2)}`)
+
+        assert.property(data, 'tokenType')
+        assert.property(data, 'txType')
+        assert.property(data, 'ticker')
+        assert.property(data, 'name')
+        assert.property(data, 'tokenId')
+        assert.property(data, 'documentUri')
+        assert.property(data, 'documentHash')
+        assert.property(data, 'decimals')
+        assert.property(data, 'mintBatonVout')
+        assert.property(data, 'qty')
+
+        assert.equal(data.tokenType, 65)
+        assert.equal(data.mintBatonVout, 0)
+        assert.equal(data.qty, '1')
+      })
+    })
+
     describe('#tokenUtxoDetails', () => {
       it('should handle a range of UTXO types', async () => {
         const utxos = [
@@ -239,6 +264,31 @@ describe('#SLP', () => {
       })
     })
   })
+  describe('#nft1', () => {
+    describe('#listNFTGroupChildren', () => {
+      it('should return array of children GENESIS transactions IDs', async () => {
+        const groupId = '68cd33ecd909068fbea318ae5ff1d6207cf754e53b191327d6d73b6916424c0a'
+        const result = await bchjs.SLP.NFT1.listNFTGroupChildren(groupId)
+        // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+        assert.property(result, 'nftChildren')
+        assert.isArray(result.nftChildren)
+      })
+    })
+    describe('#parentNFTGroup', () => {
+      it('should return parent NFT group information', async () => {
+        const tokenId = '45a30085691d6ea586e3ec2aa9122e9b0e0d6c3c1fd357decccc15d8efde48a9'
+        const result = await bchjs.SLP.NFT1.parentNFTGroup(tokenId)
+        // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+        assert.property(result, 'nftGroup')
+        assert.property(result.nftGroup, 'id')
+        assert.property(result.nftGroup, 'name')
+        assert.property(result.nftGroup, 'symbol')
+        assert.property(result.nftGroup, 'documentUri')
+        assert.property(result.nftGroup, 'versionType')
+        assert.property(result.nftGroup, 'initialTokenQty')
+      })
+    })
+  })
 })
 
 // Promise-based sleep function

test/integration/chains/bchn/utxo-integration.js

@@ -11,7 +11,7 @@ describe('#UTXO', () => {
   beforeEach(async () => {
     // sandbox = sinon.createSandbox()
 
-    if (process.env.IS_USING_FREE_TIER) await sleep(1000)
+    if (process.env.IS_USING_FREE_TIER) await sleep(3000)
   })
 
   describe('#get', () => {

test/integration/chains/testnet/blockchain.js

@@ -12,11 +12,11 @@ const assert = chai.assert
 
 const RESTURL = process.env.RESTURL
   ? process.env.RESTURL
-  : 'https://testnet3.fullstack.cash/v4/'
+  : 'https://testnet3.fullstack.cash/v5/'
 // if (process.env.RESTURL) RESTURL = process.env.RESTURL
 
 const BCHJS = require('../../../../src/bch-js')
-// const bchjs = new BCHJS({ restURL: `https://testnet.bchjs.cash/v4/` })
+// const bchjs = new BCHJS({ restURL: `https://testnet.bchjs.cash/v5/` })
 const bchjs = new BCHJS({ restURL: RESTURL, apiToken: process.env.BCHJSTOKEN })
 
 // Inspect utility used for debugging.

test/integration/chains/testnet/control.js

@@ -7,7 +7,7 @@ const assert = chai.assert
 
 const RESTURL = process.env.RESTURL
   ? process.env.RESTURL
-  : 'https://testnet3.fullstack.cash/v4/'
+  : 'https://testnet3.fullstack.cash/v5/'
 
 const BCHJS = require('../../../../src/bch-js')
 const bchjs = new BCHJS({ restURL: RESTURL, apiToken: process.env.BCHJSTOKEN })

test/integration/chains/testnet/electrumx.js

@@ -5,7 +5,7 @@ const util = require('util')
 
 const RESTURL = process.env.RESTURL
   ? process.env.RESTURL
-  : 'https://testnet3.fullstack.cash/v4/'
+  : 'https://testnet3.fullstack.cash/v5/'
 
 const BCHJS = require('../../../../src/bch-js')
 const bchjs = new BCHJS({ restURL: RESTURL, apiToken: process.env.BCHJSTOKEN })
@@ -68,7 +68,9 @@ describe('#ElectrumX', () => {
     it('should throw error on array size rate limit', async () => {
       try {
         const addr = []
-        for (let i = 0; i < 25; i++) { addr.push('bchtest:qrvn2n228aa39xupcw9jw0d3fj8axxky656e4j62z2') }
+        for (let i = 0; i < 25; i++) {
+          addr.push('bchtest:qrvn2n228aa39xupcw9jw0d3fj8axxky656e4j62z2')
+        }
 
         // const result = await bchjs.Electrumx.utxo(addr)
         // console.log(`result: ${util.inspect(result)}`)
@@ -121,7 +123,9 @@ describe('#ElectrumX', () => {
     it('should throw error on array size rate limit', async () => {
       try {
         const addr = []
-        for (let i = 0; i < 25; i++) { addr.push('bchtest:qrvn2n228aa39xupcw9jw0d3fj8axxky656e4j62z2') }
+        for (let i = 0; i < 25; i++) {
+          addr.push('bchtest:qrvn2n228aa39xupcw9jw0d3fj8axxky656e4j62z2')
+        }
 
         const result = await bchjs.Electrumx.balance(addr)
 
@@ -175,7 +179,9 @@ describe('#ElectrumX', () => {
     it('should throw error on array size rate limit', async () => {
       try {
         const addr = []
-        for (let i = 0; i < 25; i++) { addr.push('bchtest:qrvn2n228aa39xupcw9jw0d3fj8axxky656e4j62z2') }
+        for (let i = 0; i < 25; i++) {
+          addr.push('bchtest:qrvn2n228aa39xupcw9jw0d3fj8axxky656e4j62z2')
+        }
 
         const result = await bchjs.Electrumx.transactions(addr)
 
@@ -236,7 +242,9 @@ describe('#ElectrumX', () => {
     it('should throw error on array size rate limit', async () => {
       try {
         const addr = []
-        for (let i = 0; i < 25; i++) { addr.push('bchtest:qrvn2n228aa39xupcw9jw0d3fj8axxky656e4j62z2') }
+        for (let i = 0; i < 25; i++) {
+          addr.push('bchtest:qrvn2n228aa39xupcw9jw0d3fj8axxky656e4j62z2')
+        }
 
         await bchjs.Electrumx.unconfirmed(addr)
         // console.log(`result: ${util.inspect(result)}`)
@@ -355,7 +363,7 @@ describe('#ElectrumX', () => {
         assert.property(err, 'success')
         assert.equal(err.success, false)
         assert.include(
-          err.error,
+          err.error.error,
           'the transaction was rejected by network rules'
         )
       }

test/integration/chains/testnet/ninsight.js

@@ -1,9 +1,9 @@
-const chai = require('chai')
-const assert = chai.assert
+// const chai = require('chai')
+// const assert = chai.assert
 const sinon = require('sinon')
 
-const BCHJS = require('../../../../src/bch-js')
-const bchjs = new BCHJS({ ninsightURL: 'https://trest.bitcoin.com/v2' })
+// const BCHJS = require('../../../../src/bch-js')
+// const bchjs = new BCHJS({ ninsightURL: 'https://trest.bitcoin.com/v2' })
 
 describe('#Ninsight', () => {
   let sandbox
@@ -16,130 +16,132 @@ describe('#Ninsight', () => {
 
   afterEach(() => sandbox.restore())
 
-  describe('#utxo', () => {
-    it('should GET utxos for a single address', async () => {
-      const addr = 'bchtest:qzjtnzcvzxx7s0na88yrg3zl28wwvfp97538sgrrmr'
-
-      const result = await bchjs.Ninsight.utxo(addr)
-      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
-
-      assert.property(result[0], 'utxos')
-      assert.property(result[0], 'legacyAddress')
-      assert.property(result[0], 'cashAddress')
-      assert.property(result[0], 'slpAddress')
-      assert.property(result[0], 'scriptPubKey')
-      assert.property(result[0], 'asm')
-
-      assert.isArray(result[0].utxos)
-
-      assert.property(result[0].utxos[0], 'txid')
-      assert.property(result[0].utxos[0], 'vout')
-      assert.property(result[0].utxos[0], 'amount')
-      assert.property(result[0].utxos[0], 'satoshis')
-      assert.property(result[0].utxos[0], 'height')
-      assert.property(result[0].utxos[0], 'confirmations')
-    })
-
-    it('should POST utxo details for an array of addresses', async () => {
-      const addr = [
-        'bchtest:qzjtnzcvzxx7s0na88yrg3zl28wwvfp97538sgrrmr',
-        'bchtest:qp6hgvevf4gzz6l7pgcte3gaaud9km0l459fa23dul'
-      ]
-
-      const result = await bchjs.Ninsight.utxo(addr)
-      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
-
-      assert.isArray(result)
-      assert.isArray(result[0].utxos)
-
-      assert.property(result[0], 'utxos')
-      assert.property(result[0], 'legacyAddress')
-      assert.property(result[0], 'cashAddress')
-      assert.property(result[0], 'slpAddress')
-      assert.property(result[0], 'scriptPubKey')
-      assert.property(result[0], 'asm')
-
-      // assert.hasAnyKeys(result[0][0], [
-      //   "txid",
-      //   "vout",
-      //   "value",
-      //   "height",
-      //   "confirmations"
-      // ])
-    })
-  })
-  describe('#transactions', () => {
-    it('should POST transactions history for a single address', async () => {
-      const addr = 'bchtest:qzjtnzcvzxx7s0na88yrg3zl28wwvfp97538sgrrmr'
-
-      const result = await bchjs.Ninsight.transactions(addr)
-      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
-
-      assert.isArray(result)
-      assert.property(result[0], 'cashAddress')
-      assert.property(result[0], 'legacyAddress')
-      assert.property(result[0], 'txs')
-      assert.isArray(result[0].txs)
-      assert.property(result[0].txs[0], 'txid')
-      assert.property(result[0].txs[0], 'vin')
-      assert.property(result[0].txs[0], 'vout')
-    })
-    it('should POST transactions history for an array of addresses', async () => {
-      const addr = [
-        'bchtest:qzjtnzcvzxx7s0na88yrg3zl28wwvfp97538sgrrmr',
-        'bchtest:qp6hgvevf4gzz6l7pgcte3gaaud9km0l459fa23dul'
-      ]
-
-      const result = await bchjs.Ninsight.transactions(addr)
-      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
-
-      assert.isArray(result)
-      assert.property(result[0], 'cashAddress')
-      assert.property(result[0], 'legacyAddress')
-      assert.property(result[0], 'txs')
-      assert.isArray(result[0].txs)
-      assert.property(result[0].txs[0], 'txid')
-      assert.property(result[0].txs[0], 'vin')
-      assert.property(result[0].txs[0], 'vout')
-    })
-  })
-  describe('#txDetails', () => {
-    it('should POST transactions details for a single address', async () => {
-      const txid =
-        '76856d82e00b2696acd8d989e1fa6c46b431005046a285ce905814cac0ff8fea'
-
-      const result = await bchjs.Ninsight.txDetails(txid)
-      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
-
-      assert.isArray(result)
-      assert.property(result[0], 'txid')
-      assert.property(result[0], 'version')
-      assert.property(result[0], 'locktime')
-      assert.property(result[0], 'vin')
-      assert.property(result[0], 'vout')
-      assert.property(result[0], 'blockhash')
-      assert.property(result[0], 'blockheight')
-      assert.property(result[0], 'confirmations')
-      assert.property(result[0], 'time')
-      assert.property(result[0], 'blocktime')
-      assert.property(result[0], 'valueOut')
-      assert.property(result[0], 'size')
-    })
-    it('should POST transactions details for an array of addresses', async () => {
-      const txid = [
-        'f191d1062789d7071da6f2168ba306869a829294f6b1c09d03492db4ca3a8e77',
-        '76856d82e00b2696acd8d989e1fa6c46b431005046a285ce905814cac0ff8fea'
-      ]
-
-      const result = await bchjs.Ninsight.txDetails(txid)
-      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
-
-      assert.isArray(result)
-      assert.property(result[0], 'txid')
-      assert.property(result[0], 'vin')
-      assert.property(result[0], 'vout')
-    })
-  })
+  // describe('#utxo', () => {
+  //   it('should GET utxos for a single address', async () => {
+  //     const addr = 'bchtest:qzjtnzcvzxx7s0na88yrg3zl28wwvfp97538sgrrmr'
+  //
+  //     const result = await bchjs.Ninsight.utxo(addr)
+  //     // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+  //
+  //     assert.property(result[0], 'utxos')
+  //     assert.property(result[0], 'legacyAddress')
+  //     assert.property(result[0], 'cashAddress')
+  //     assert.property(result[0], 'slpAddress')
+  //     assert.property(result[0], 'scriptPubKey')
+  //     assert.property(result[0], 'asm')
+  //
+  //     assert.isArray(result[0].utxos)
+  //
+  //     assert.property(result[0].utxos[0], 'txid')
+  //     assert.property(result[0].utxos[0], 'vout')
+  //     assert.property(result[0].utxos[0], 'amount')
+  //     assert.property(result[0].utxos[0], 'satoshis')
+  //     assert.property(result[0].utxos[0], 'height')
+  //     assert.property(result[0].utxos[0], 'confirmations')
+  //   })
+  //
+  //   it('should POST utxo details for an array of addresses', async () => {
+  //     const addr = [
+  //       'bchtest:qzjtnzcvzxx7s0na88yrg3zl28wwvfp97538sgrrmr',
+  //       'bchtest:qp6hgvevf4gzz6l7pgcte3gaaud9km0l459fa23dul'
+  //     ]
+  //
+  //     const result = await bchjs.Ninsight.utxo(addr)
+  //     // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+  //
+  //     assert.isArray(result)
+  //     assert.isArray(result[0].utxos)
+  //
+  //     assert.property(result[0], 'utxos')
+  //     assert.property(result[0], 'legacyAddress')
+  //     assert.property(result[0], 'cashAddress')
+  //     assert.property(result[0], 'slpAddress')
+  //     assert.property(result[0], 'scriptPubKey')
+  //     assert.property(result[0], 'asm')
+  //
+  //     // assert.hasAnyKeys(result[0][0], [
+  //     //   "txid",
+  //     //   "vout",
+  //     //   "value",
+  //     //   "height",
+  //     //   "confirmations"
+  //     // ])
+  //   })
+  // })
+  //
+  // describe('#transactions', () => {
+  //   it('should POST transactions history for a single address', async () => {
+  //     const addr = 'bchtest:qzjtnzcvzxx7s0na88yrg3zl28wwvfp97538sgrrmr'
+  //
+  //     const result = await bchjs.Ninsight.transactions(addr)
+  //     // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+  //
+  //     assert.isArray(result)
+  //     assert.property(result[0], 'cashAddress')
+  //     assert.property(result[0], 'legacyAddress')
+  //     assert.property(result[0], 'txs')
+  //     assert.isArray(result[0].txs)
+  //     assert.property(result[0].txs[0], 'txid')
+  //     assert.property(result[0].txs[0], 'vin')
+  //     assert.property(result[0].txs[0], 'vout')
+  //   })
+  //   it('should POST transactions history for an array of addresses', async () => {
+  //     const addr = [
+  //       'bchtest:qzjtnzcvzxx7s0na88yrg3zl28wwvfp97538sgrrmr',
+  //       'bchtest:qp6hgvevf4gzz6l7pgcte3gaaud9km0l459fa23dul'
+  //     ]
+  //
+  //     const result = await bchjs.Ninsight.transactions(addr)
+  //     // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+  //
+  //     assert.isArray(result)
+  //     assert.property(result[0], 'cashAddress')
+  //     assert.property(result[0], 'legacyAddress')
+  //     assert.property(result[0], 'txs')
+  //     assert.isArray(result[0].txs)
+  //     assert.property(result[0].txs[0], 'txid')
+  //     assert.property(result[0].txs[0], 'vin')
+  //     assert.property(result[0].txs[0], 'vout')
+  //   })
+  // })
+  //
+  // describe('#txDetails', () => {
+  //   it('should POST transactions details for a single address', async () => {
+  //     const txid =
+  //       '76856d82e00b2696acd8d989e1fa6c46b431005046a285ce905814cac0ff8fea'
+  //
+  //     const result = await bchjs.Ninsight.txDetails(txid)
+  //     // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+  //
+  //     assert.isArray(result)
+  //     assert.property(result[0], 'txid')
+  //     assert.property(result[0], 'version')
+  //     assert.property(result[0], 'locktime')
+  //     assert.property(result[0], 'vin')
+  //     assert.property(result[0], 'vout')
+  //     assert.property(result[0], 'blockhash')
+  //     assert.property(result[0], 'blockheight')
+  //     assert.property(result[0], 'confirmations')
+  //     assert.property(result[0], 'time')
+  //     assert.property(result[0], 'blocktime')
+  //     assert.property(result[0], 'valueOut')
+  //     assert.property(result[0], 'size')
+  //   })
+  //   it('should POST transactions details for an array of addresses', async () => {
+  //     const txid = [
+  //       'f191d1062789d7071da6f2168ba306869a829294f6b1c09d03492db4ca3a8e77',
+  //       '76856d82e00b2696acd8d989e1fa6c46b431005046a285ce905814cac0ff8fea'
+  //     ]
+  //
+  //     const result = await bchjs.Ninsight.txDetails(txid)
+  //     // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+  //
+  //     assert.isArray(result)
+  //     assert.property(result[0], 'txid')
+  //     assert.property(result[0], 'vin')
+  //     assert.property(result[0], 'vout')
+  //   })
+  // })
 })
 
 function sleep (ms) {

test/integration/chains/testnet/rawtransaction.js

@@ -10,11 +10,11 @@ const assert = chai.assert
 
 const RESTURL = process.env.RESTURL
   ? process.env.RESTURL
-  : 'https://testnet3.fullstack.cash/v4/'
+  : 'https://testnet3.fullstack.cash/v5/'
 // if (process.env.RESTURL) RESTURL = process.env.RESTURL
 
 const BCHJS = require('../../../../src/bch-js')
-// const bchjs = new BCHJS({ restURL: `https://testnet.bchjs.cash/v4/` })
+// const bchjs = new BCHJS({ restURL: `https://testnet.bchjs.cash/v5/` })
 const bchjs = new BCHJS({ restURL: RESTURL, apiToken: process.env.BCHJSTOKEN })
 
 // Inspect utility used for debugging.

test/integration/chains/testnet/slp.js

@@ -7,11 +7,11 @@ const assert = chai.assert
 
 const RESTURL = process.env.RESTURL
   ? process.env.RESTURL
-  : 'https://testnet3.fullstack.cash/v4/'
+  : 'https://testnet3.fullstack.cash/v5/'
 // if (process.env.RESTURL) RESTURL = process.env.RESTURL
 
 const BCHJS = require('../../../../src/bch-js')
-// const bchjs = new BCHJS({ restURL: `https://testnet.bchjs.cash/v4/` })
+// const bchjs = new BCHJS({ restURL: `https://testnet.bchjs.cash/v5/` })
 const bchjs = new BCHJS({ restURL: RESTURL, apiToken: process.env.BCHJSTOKEN })
 
 // Inspect utility used for debugging.

test/integration/chains/testnet/test-free-tier.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-export RESTURL=https://free-test.fullstack.cash/v4/
+export RESTURL=https://free-test.fullstack.cash/v5/
 export NETWORK=testnet
 export IS_USING_FREE_TIER=true
 

test/integration/chains/testnet/util.js

@@ -8,11 +8,11 @@ const assert = chai.assert
 
 const RESTURL = process.env.RESTURL
   ? process.env.RESTURL
-  : 'https://testnet3.fullstack.cash/v4/'
+  : 'https://testnet3.fullstack.cash/v5/'
 // if (process.env.RESTURL) RESTURL = process.env.RESTURL
 
 const BCHJS = require('../../../../src/bch-js')
-// const bchjs = new BCHJS({ restURL: `https://testnet.bchjs.cash/v4/` })
+// const bchjs = new BCHJS({ restURL: `https://testnet.bchjs.cash/v5/` })
 const bchjs = new BCHJS({ restURL: RESTURL, apiToken: process.env.BCHJSTOKEN })
 
 // Inspect utility used for debugging.

test/integration/electrumx.js

@@ -359,10 +359,12 @@ describe('#ElectrumX', () => {
       try {
         await bchjs.Electrumx.broadcast(txHex)
       } catch (err) {
+        // console.log('err: ', err)
+
         assert.property(err, 'success')
         assert.equal(err.success, false)
         assert.include(
-          err.error,
+          err.error.error,
           'the transaction was rejected by network rules'
         )
       }

test/integration/price.js

@@ -33,6 +33,14 @@ describe('#price', () => {
       assert.isNumber(result)
     })
   })
+  describe('#getBchUsd', () => {
+    it('should get the USD price of BCH', async () => {
+      const result = await bchjs.Price.getBchUsd()
+      console.log(result)
+
+      assert.isNumber(result)
+    })
+  })
 
   describe('#rates', () => {
     it('should get the price of BCH in several currencies', async () => {

test/integration/rawtransaction.js

@@ -1,6 +1,5 @@
 /*
-  Integration tests for the bchjs. Only covers calls made to
-  rest.bitcoin.com.
+  Integration tests for the bchjs.
 
   TODO
 */
@@ -252,9 +251,13 @@ describe('#rawtransaction', () => {
   describe('#_getInputAddrs', () => {
     it('should return an array of input addresses', async () => {
       // const txid = '32233db13f2ae6d82b6262f335643dccf09fc0bcfcef4bc3fbe023355f02e112'
-      const txid = '05f7d4a4e25f53d63a360434eb54f221abf159112b7fffc91da1072a079cded3'
+      const txid =
+        '05f7d4a4e25f53d63a360434eb54f221abf159112b7fffc91da1072a079cded3'
 
-      const txDetails = await bchjs.RawTransactions.getRawTransaction(txid, true)
+      const txDetails = await bchjs.RawTransactions.getRawTransaction(
+        txid,
+        true
+      )
 
       const result = await bchjs.RawTransactions._getInputAddrs(txDetails)
       // console.log(`result: ${JSON.stringify(result, null, 2)}`)
@@ -263,43 +266,46 @@ describe('#rawtransaction', () => {
       assert.equal(result.length, 1)
       assert.property(result[0], 'vin')
       assert.property(result[0], 'address')
+      assert.property(result[0], 'value')
     })
   })
 
   describe('#getTxData', () => {
     it('should return tx data with input addresses', async () => {
-      const txid = '05f7d4a4e25f53d63a360434eb54f221abf159112b7fffc91da1072a079cded3'
+      const txid =
+        '05f7d4a4e25f53d63a360434eb54f221abf159112b7fffc91da1072a079cded3'
 
       const result = await bchjs.RawTransactions.getTxData(txid)
       // console.log(`result: ${JSON.stringify(result, null, 2)}`)
 
       assert.property(result.vin[0], 'address')
+      assert.property(result.vin[0], 'value')
     })
   })
 
-  describe('#getTxDataSlp', () => {
-    it('should return tx data with SLP information', async () => {
-      const txid = 'b438855cfcab64516b44097d7212df9cdb99226c8d7c7ab504d35fcfd834cb5b'
-
-      const result = await bchjs.RawTransactions.getTxDataSlp(txid)
-      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
-
-      assert.property(result.vin[0], 'address')
-      assert.property(result.vin[0], 'tokenQty')
-
-      assert.equal(result.vin[0].tokenQty, null)
-      assert.equal(result.vin[1].tokenQty, '100000000000')
-    })
-
-    it('should handle non-slp tx', async () => {
-      const txid = '04a6aca328af2445327015895b8da9766093b1989b52e477559759eb8072fc0a'
-
-      const result = await bchjs.RawTransactions.getTxDataSlp(txid)
-      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
-
-      assert.equal(result, false)
-    })
-  })
+  // describe('#getTxDataSlp', () => {
+  //   it('should return tx data with SLP information', async () => {
+  //     const txid = 'b438855cfcab64516b44097d7212df9cdb99226c8d7c7ab504d35fcfd834cb5b'
+  //
+  //     const result = await bchjs.RawTransactions.getTxDataSlp(txid)
+  //     // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+  //
+  //     assert.property(result.vin[0], 'address')
+  //     assert.property(result.vin[0], 'tokenQty')
+  //
+  //     assert.equal(result.vin[0].tokenQty, null)
+  //     assert.equal(result.vin[1].tokenQty, '100000000000')
+  //   })
+  //
+  //   it('should handle non-slp tx', async () => {
+  //     const txid = '04a6aca328af2445327015895b8da9766093b1989b52e477559759eb8072fc0a'
+  //
+  //     const result = await bchjs.RawTransactions.getTxDataSlp(txid)
+  //     // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+  //
+  //     assert.equal(result, false)
+  //   })
+  // })
 })
 
 function sleep (ms) {

test/integration/slp.js

@@ -24,7 +24,7 @@ describe('#SLP', () => {
 
   beforeEach(async () => {
     // Introduce a delay so that the BVT doesn't trip the rate limits.
-    if (process.env.IS_USING_FREE_TIER) await sleep(1000)
+    if (process.env.IS_USING_FREE_TIER) await sleep(3000)
 
     bchjs = new BCHJS()
   })
@@ -639,7 +639,7 @@ describe('#SLP', () => {
       })
     })
 
-    describe('#hydrateUtxos', () => {
+    describe('#hydrateUtxos-', () => {
       it('should hydrate UTXOs', async () => {
         const utxos = [
           {

test/integration/transaction-integration.js

@@ -0,0 +1,60 @@
+/*
+  Integration tests for the transaction.js library.
+*/
+
+const assert = require('chai').assert
+const BCHJS = require('../../src/bch-js')
+const bchjs = new BCHJS()
+
+describe('#Transaction', () => {
+  beforeEach(async () => {
+    if (process.env.IS_USING_FREE_TIER) await bchjs.Util.sleep(1000)
+  })
+
+  describe('#get', () => {
+    it('should get details about a non-SLP transaction', async () => {
+      const txid =
+        '2b37bdb3b63dd0bca720437754a36671431a950e684b64c44ea910ea9d5297c7'
+
+      const result = await bchjs.Transaction.get(txid)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      // Assert that there are stanardized properties.
+      assert.property(result, 'txid')
+      assert.property(result, 'vin')
+      assert.property(result, 'vout')
+      assert.property(result.vout[0], 'value')
+      assert.property(result.vout[0].scriptPubKey, 'addresses')
+
+      // Assert that added properties exist.
+      assert.property(result.vin[0], 'address')
+      assert.property(result.vin[0], 'value')
+      assert.property(result, 'isValidSLPTx')
+      assert.equal(result.isValidSLPTx, false)
+    })
+
+    it('should get details about a SLP transaction', async () => {
+      const txid =
+        '266844d53e46bbd7dd37134688dffea6e54d944edff27a0add63dd0908839bc1'
+
+      const result = await bchjs.Transaction.get(txid)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      // Assert that there are stanardized properties.
+      assert.property(result, 'txid')
+      assert.property(result, 'vin')
+      assert.property(result, 'vout')
+      assert.property(result.vout[0], 'value')
+      assert.property(result.vout[1].scriptPubKey, 'addresses')
+
+      // Assert that added properties exist.
+      assert.property(result.vout[0], 'tokenQty')
+      assert.equal(result.vout[0].tokenQty, null)
+      assert.property(result.vin[0], 'address')
+      assert.property(result.vin[0], 'value')
+      assert.property(result.vin[0], 'tokenQty')
+      assert.property(result, 'isValidSLPTx')
+      assert.equal(result.isValidSLPTx, true)
+    })
+  })
+})

test/unit/blockchain.js

@@ -61,16 +61,40 @@ describe('#Blockchain', () => {
 
     it('should get block by hash', done => {
       const resolved = new Promise(resolve => resolve({ data: data }))
-      sandbox.stub(axios, 'get').returns(resolved)
+      sandbox.stub(axios, 'post').returns(resolved)
 
-      bchjs.Blockchain.getBlock(
+      const blockhash =
         '00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09'
-      )
+      bchjs.Blockchain.getBlock(blockhash)
         .then(result => {
           assert.deepStrictEqual(data, result)
         })
         .then(done, done)
     })
+    it('should throw error if blockhash is not provided', async () => {
+      try {
+        await bchjs.Blockchain.getBlock()
+        assert2.fail('Unexpected result')
+      } catch (err) {
+        assert2.include(err.message, 'blockhash must be a string')
+      }
+    })
+    it('should handle response error', async () => {
+      try {
+        const error = new Error()
+        error.response = {
+          data: 'Test Error'
+        }
+        sandbox.stub(axios, 'post').throws(error)
+
+        const blockhash =
+          '00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09'
+        await bchjs.Blockchain.getBlock(blockhash)
+        assert2.fail('Unexpected result')
+      } catch (err) {
+        assert2.include(err, 'Test Error')
+      }
+    })
   })
 
   describe('#getBlockchainInfo', () => {
@@ -355,10 +379,7 @@ describe('#Blockchain', () => {
       try {
         await bchjs.Blockchain.getTxOut('badtxid')
       } catch (err) {
-        assert2.include(
-          err.message,
-          'txid needs to be a proper transaction ID'
-        )
+        assert2.include(err.message, 'txid needs to be a proper transaction ID')
       }
     })
 

test/unit/dsproof.js

@@ -0,0 +1,66 @@
+// Public npm libraries
+const assert = require('chai').assert
+const sinon = require('sinon')
+
+// Unit under test (uut)
+const BCHJS = require('../../src/bch-js')
+const mockData = require('./fixtures/dsproof-mock')
+
+let bchjs
+const txid = 'ee0df780b58f6f24467605b2589c44c3a50fc849fb8f91b89669a4ae0d86bc7e'
+describe('#DSProof', () => {
+  let sandbox
+  beforeEach(() => {
+    bchjs = new BCHJS()
+    sandbox = sinon.createSandbox()
+  })
+  afterEach(() => sandbox.restore())
+
+  describe('#getDSProof', () => {
+    it('should throw error if input is not provided', async () => {
+      try {
+        await bchjs.DSProof.getDSProof()
+        assert.equal(false, true, 'unexpected error')
+      } catch (err) {
+        assert.include(err.message, 'txid is required')
+      }
+    })
+    it('should throw error txid is invalid', async () => {
+      try {
+        await bchjs.DSProof.getDSProof('txid')
+        assert.equal(false, true, 'unexpected error')
+      } catch (err) {
+        assert.include(err.message, 'txid must be of length 64')
+      }
+    })
+    it('should handle error', async () => {
+      try {
+        sandbox.stub(bchjs.DSProof.axios, 'get').throws(new Error('test error'))
+        await bchjs.DSProof.getDSProof(txid)
+
+        assert.equal(false, true, 'unexpected error')
+      } catch (err) {
+        assert.include(err.message, 'test error')
+      }
+    })
+    it('should get double spend proof', async () => {
+      try {
+        sandbox
+          .stub(bchjs.DSProof.axios, 'get')
+          .resolves({ data: mockData.dsproof })
+        const result = await bchjs.DSProof.getDSProof(txid)
+
+        assert.property(result, 'dspid')
+        assert.property(result, 'txid')
+        assert.property(result, 'outpoint')
+        assert.property(result, 'path')
+        assert.property(result, 'descendants')
+
+        assert.property(result.outpoint, 'txid')
+        assert.property(result.outpoint, 'vout')
+      } catch (error) {
+        assert.equal(false, true, 'unexpected error')
+      }
+    })
+  })
+})

test/unit/fixtures/dsproof-mock.js

@@ -0,0 +1,19 @@
+/*
+  Mock data used for unit testing.
+*/
+const dsproof = {
+  dspid: '6234fff2a9dbcaa50e2c50d74e1d725a2bed1757d7a05a2db7a82df659554397',
+  txid: 'ee0df780b58f6f24467605b2589c44c3a50fc849fb8f91b89669a4ae0d86bc7e',
+  outpoint: {
+    txid: '17ebef34f7e9a0692317dd6fbb43ffccff45b7d688a2a754dbccfc5e6d93ce3e',
+    vout: 1
+  },
+  path: ['ee0df780b58f6f24467605b2589c44c3a50fc849fb8f91b89669a4ae0d86bc7e'],
+  descendants: [
+    'ee0df780b58f6f24467605b2589c44c3a50fc849fb8f91b89669a4ae0d86bc7e'
+  ]
+}
+
+module.exports = {
+  dsproof
+}

test/unit/fixtures/slp/mock-utils.js

@@ -119,6 +119,33 @@ const mockTokens = [
   }
 ]
 
+const mockNftChildrenList = {
+  nftChildren: [
+    '45a30085691d6ea586e3ec2aa9122e9b0e0d6c3c1fd357decccc15d8efde48a9',
+    '928ce61fe1006b1325a0ba0dce700bf83986a6f0691ba26e121c9ac035d12a55'
+  ]
+}
+
+const mockNftGroup = {
+  nftGroup: {
+    decimals: 0,
+    timestamp: '2021-05-03 10:36:01',
+    timestamp_unix: 1620038161,
+    versionType: 129,
+    documentUri: 'psfoundation.cash',
+    symbol: 'PSF.TEST.GROUP',
+    name: 'PSF Test NFT Group',
+    containsBaton: true,
+    id: '68cd33ecd909068fbea318ae5ff1d6207cf754e53b191327d6d73b6916424c0a',
+    documentHash: null,
+    initialTokenQty: 1000000,
+    blockCreated: 686117,
+    totalMinted: null,
+    totalBurned: null,
+    circulatingSupply: null
+  }
+}
+
 const balancesForAddress = [
   {
     tokenId: 'df808a41672a0a0ae6475b44f272a107bc9961b90f29dc918d71301f24fe92fb',
@@ -1290,10 +1317,106 @@ const slpdbStatus = {
   }
 }
 
+const txDetailsSLPNftChild = {
+  txid: 'eeddccc4d716f04157ea132ac93a48040fea34a6b57f3d8f0cccb7d1a731ab2b',
+  hash: 'eeddccc4d716f04157ea132ac93a48040fea34a6b57f3d8f0cccb7d1a731ab2b',
+  version: 2,
+  size: 453,
+  locktime: 0,
+  vin: [
+    {
+      txid: 'a9a2458a0f9f0761d5b8725c256f2e7fa35b9de4dec6f47b46e9f20d92d0e395',
+      vout: 1,
+      scriptSig: {
+        asm:
+          '3045022100890ff2f80f3c184419ba03a575b9d159c0a5edfa817e4548cfdb6c74d16ce8d202205a8237d2139196716c273fe80506896d369a0022bb54401e2eadb364286a9f07[ALL|FORKID] 03136d9ec06adef1c9154105950e82d470d290aa019ed34a5e3bbd0b679805623b',
+        hex:
+          '483045022100890ff2f80f3c184419ba03a575b9d159c0a5edfa817e4548cfdb6c74d16ce8d202205a8237d2139196716c273fe80506896d369a0022bb54401e2eadb364286a9f07412103136d9ec06adef1c9154105950e82d470d290aa019ed34a5e3bbd0b679805623b'
+      },
+      sequence: 4294967295
+    },
+    {
+      txid: 'a9a2458a0f9f0761d5b8725c256f2e7fa35b9de4dec6f47b46e9f20d92d0e395',
+      vout: 3,
+      scriptSig: {
+        asm:
+          '304402203905a61ec4e3567f7cad7eb514132e5b32d8a1d77c8838baac1b34b735282a5f022044da6130b5cc41b65615b17df6610087fe1baedd1a3a9f37552b56ea8d36d026[ALL|FORKID] 03136d9ec06adef1c9154105950e82d470d290aa019ed34a5e3bbd0b679805623b',
+        hex:
+          '47304402203905a61ec4e3567f7cad7eb514132e5b32d8a1d77c8838baac1b34b735282a5f022044da6130b5cc41b65615b17df6610087fe1baedd1a3a9f37552b56ea8d36d026412103136d9ec06adef1c9154105950e82d470d290aa019ed34a5e3bbd0b679805623b'
+      },
+      sequence: 4294967295
+    }
+  ],
+  vout: [
+    {
+      value: 0,
+      n: 0,
+      scriptPubKey: {
+        asm:
+          'OP_RETURN 5262419 65 47454e45534953 4e4654303034 4e4654204368696c64 68747470733a2f2f46756c6c537461636b2e63617368 0 0 0 0000000000000001',
+        hex:
+          '6a04534c500001410747454e45534953064e4654303034094e4654204368696c641668747470733a2f2f46756c6c537461636b2e636173684c0001004c00080000000000000001',
+        type: 'nulldata'
+      }
+    },
+    {
+      value: 0.00000546,
+      n: 1,
+      scriptPubKey: {
+        asm:
+          'OP_DUP OP_HASH160 f6fc6bce702ef779d2373aa4356a32113d95e674 OP_EQUALVERIFY OP_CHECKSIG',
+        hex: '76a914f6fc6bce702ef779d2373aa4356a32113d95e67488ac',
+        reqSigs: 1,
+        type: 'pubkeyhash',
+        addresses: ['bitcoincash:qrm0c67wwqh0w7wjxua2gdt2xggnm90xws00a3lezv']
+      }
+    },
+    {
+      value: 0.0003923,
+      n: 2,
+      scriptPubKey: {
+        asm:
+          'OP_DUP OP_HASH160 f6fc6bce702ef779d2373aa4356a32113d95e674 OP_EQUALVERIFY OP_CHECKSIG',
+        hex: '76a914f6fc6bce702ef779d2373aa4356a32113d95e67488ac',
+        reqSigs: 1,
+        type: 'pubkeyhash',
+        addresses: ['bitcoincash:qrm0c67wwqh0w7wjxua2gdt2xggnm90xws00a3lezv']
+      }
+    }
+  ],
+  hex:
+    '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',
+  blockhash: '000000000000000001360fe42629f4136e9adec53546b278de0e7ef788eed328',
+  confirmations: 2113,
+  time: 1613181364,
+  blocktime: 1613181364
+}
+
+const mock429Error = new Error('Request failed with status code 429')
+mock429Error.response = {
+  status: 429,
+  statusText: 'Too Many Requests',
+  data: {
+    error:
+      'Too many requests. Your limits are currently 100 requests per minute. Increase rate limits at https://fullstack.cash'
+  }
+}
+
+const mock503Error = new Error('Request failed with status code 503')
+mock503Error.response = {
+  status: 503,
+  statusText: 'Service Unavailable',
+  data: {
+    error: 'Some error message'
+  }
+}
+
 module.exports = {
   mockList,
   mockToken,
   mockTokens,
+  mockNftChildrenList,
+  mockNftGroup,
   balancesForAddress,
   balancesForAddresses,
   mockRawTx,
@@ -1311,6 +1434,7 @@ module.exports = {
   txDetailsSLPGenesisNoBaton,
   txDetailsSLPSendAlt,
   txDetailsSLPNftGenesis,
+  txDetailsSLPNftChild,
   mockTxDetails,
   mockDualValidation,
   mockDualOpData,
@@ -1320,5 +1444,7 @@ module.exports = {
   mockValidateTxid3Invalid,
   whitelist,
   slpdbStatus,
-  mockValidateTxidArray
+  mockValidateTxidArray,
+  mock429Error,
+  mock503Error
 }

test/unit/fixtures/transaction-mock.js

@@ -0,0 +1,184 @@
+/*
+  Mocking data used in the transaction-unit.js tests.
+*/
+
+const nonSlpTxDetails = {
+  txid: '2b37bdb3b63dd0bca720437754a36671431a950e684b64c44ea910ea9d5297c7',
+  hash: '2b37bdb3b63dd0bca720437754a36671431a950e684b64c44ea910ea9d5297c7',
+  version: 2,
+  size: 225,
+  locktime: 0,
+  vin: [
+    {
+      txid: '5f09d317e24c5d376f737a2711f3bd1d381abdb41743fff3819b4f76382e1eac',
+      vout: 1,
+      scriptSig: {
+        asm:
+          '3044022000dd11c41a472f2e54348db996e60864d489429f12d1e044d49ff600b880c9590220715a926404bb0e2731a3795afb341ec1dad3f84ead7d27cd31fcc59abb14738c[ALL|FORKID] 038476128287ac37c7a3cf7e8625fd5f024db1bc3d8e37395abe7bf42fda78d0d9',
+        hex:
+          '473044022000dd11c41a472f2e54348db996e60864d489429f12d1e044d49ff600b880c9590220715a926404bb0e2731a3795afb341ec1dad3f84ead7d27cd31fcc59abb14738c4121038476128287ac37c7a3cf7e8625fd5f024db1bc3d8e37395abe7bf42fda78d0d9'
+      },
+      sequence: 4294967295,
+      address: 'bitcoincash:qqxy8hycqe89j7wa79gnggq6z3gaqu2uvqy26xehfe',
+      value: 0.00047504
+    }
+  ],
+  vout: [
+    {
+      value: 0.00001,
+      n: 0,
+      scriptPubKey: {
+        asm:
+          'OP_DUP OP_HASH160 2fe2c4c5ef359bb2fe1a849f891cecffbcfb4f77 OP_EQUALVERIFY OP_CHECKSIG',
+        hex: '76a9142fe2c4c5ef359bb2fe1a849f891cecffbcfb4f7788ac',
+        reqSigs: 1,
+        type: 'pubkeyhash',
+        addresses: ['bitcoincash:qqh793x9au6ehvh7r2zflzguanlme760wuzehgzjh9']
+      }
+    },
+    {
+      value: 0.00046256,
+      n: 1,
+      scriptPubKey: {
+        asm:
+          'OP_DUP OP_HASH160 2dbf5e1804c39a497b908c876097d63210c84902 OP_EQUALVERIFY OP_CHECKSIG',
+        hex: '76a9142dbf5e1804c39a497b908c876097d63210c8490288ac',
+        reqSigs: 1,
+        type: 'pubkeyhash',
+        addresses: ['bitcoincash:qqkm7hscqnpe5jtmjzxgwcyh6ceppjzfqg3jdn422e']
+      }
+    }
+  ],
+  hex:
+    '0200000001ac1e2e38764f9b81f3ff4317b4bd1a381dbdf311277a736f375d4ce217d3095f010000006a473044022000dd11c41a472f2e54348db996e60864d489429f12d1e044d49ff600b880c9590220715a926404bb0e2731a3795afb341ec1dad3f84ead7d27cd31fcc59abb14738c4121038476128287ac37c7a3cf7e8625fd5f024db1bc3d8e37395abe7bf42fda78d0d9ffffffff02e8030000000000001976a9142fe2c4c5ef359bb2fe1a849f891cecffbcfb4f7788acb0b40000000000001976a9142dbf5e1804c39a497b908c876097d63210c8490288ac00000000',
+  blockhash: '0000000000000000010903a1fc4274499037c9339be9ec7338ee980331c20ce5',
+  confirmations: 77741,
+  time: 1569792892,
+  blocktime: 1569792892
+}
+
+const slpTxDetails = {
+  txid: '266844d53e46bbd7dd37134688dffea6e54d944edff27a0add63dd0908839bc1',
+  hash: '266844d53e46bbd7dd37134688dffea6e54d944edff27a0add63dd0908839bc1',
+  version: 2,
+  size: 479,
+  locktime: 0,
+  vin: [
+    {
+      txid: 'abc685f1f2a95f51e5e05a350f3fb9c74676e9f78c835b2a019c888ac0a2a736',
+      vout: 2,
+      scriptSig: {
+        asm:
+          '3045022100e5f0f6f1212fcbb10eedb7fdc38fca6e86629b4e7e8356a3ad7371a109fc37a602204bfff37d1a34d2e2908b81c23677706fb59ff4ab639fa3299da6c303de74e1f7[ALL|FORKID] 0245b9b3586fab3cfd46db6d116c4588004fe7fe9798216ccb8e55a89bcebc07ac',
+        hex:
+          '483045022100e5f0f6f1212fcbb10eedb7fdc38fca6e86629b4e7e8356a3ad7371a109fc37a602204bfff37d1a34d2e2908b81c23677706fb59ff4ab639fa3299da6c303de74e1f741210245b9b3586fab3cfd46db6d116c4588004fe7fe9798216ccb8e55a89bcebc07ac'
+      },
+      sequence: 4294967295,
+      address: 'bitcoincash:qzv7t2pzn2d0pklnetdjt65crh6fe8vnhuwvhsk2nn',
+      value: 0.00000546
+    },
+    {
+      txid: '58c8576404c01c23a224053307399483d3a070599b3e9eb6d45be9714b8d6856',
+      vout: 1,
+      scriptSig: {
+        asm:
+          '30430220784f6d81fa8f54db8a4948259e8c15972a0285f8b1640c433d4e9f606dc38f0c021f14eecc2e8af2efede0867ce459c400dde54186a0e64babdbe89f795db12753[ALL|FORKID] 0209ebe6d9da5043945ed1d81bec0fcace299eba05e5f46b72d6838c790d31c505',
+        hex:
+          '4630430220784f6d81fa8f54db8a4948259e8c15972a0285f8b1640c433d4e9f606dc38f0c021f14eecc2e8af2efede0867ce459c400dde54186a0e64babdbe89f795db1275341210209ebe6d9da5043945ed1d81bec0fcace299eba05e5f46b72d6838c790d31c505'
+      },
+      sequence: 4294967295,
+      address: 'bitcoincash:qppzuxemgqyxf07nz3kan33gmc83mf3z3yz295c4s7',
+      value: 0.68369626
+    }
+  ],
+  vout: [
+    {
+      value: 0,
+      n: 0,
+      scriptPubKey: {
+        asm:
+          'OP_RETURN 5262419 1 1145980243 497291b8a1dfe69c8daea50677a3d31a5ef0e9484d8bebb610dac64bbc202fb7 0000000005f5e100 00005ad7e49d9100',
+        hex:
+          '6a04534c500001010453454e4420497291b8a1dfe69c8daea50677a3d31a5ef0e9484d8bebb610dac64bbc202fb7080000000005f5e1000800005ad7e49d9100',
+        type: 'nulldata'
+      }
+    },
+    {
+      value: 0.00000546,
+      n: 1,
+      scriptPubKey: {
+        asm:
+          'OP_DUP OP_HASH160 36be3b7d185a85b6cf6fc61d63c16f2f10e54260 OP_EQUALVERIFY OP_CHECKSIG',
+        hex: '76a91436be3b7d185a85b6cf6fc61d63c16f2f10e5426088ac',
+        reqSigs: 1,
+        type: 'pubkeyhash',
+        addresses: ['bitcoincash:qqmtuwmarpdgtdk0dlrp6c7pduh3pe2zvqrkys2ex8']
+      }
+    },
+    {
+      value: 0.00000546,
+      n: 2,
+      scriptPubKey: {
+        asm:
+          'OP_DUP OP_HASH160 99e5a8229a9af0dbf3cadb25ea981df49c9d93bf OP_EQUALVERIFY OP_CHECKSIG',
+        hex: '76a91499e5a8229a9af0dbf3cadb25ea981df49c9d93bf88ac',
+        reqSigs: 1,
+        type: 'pubkeyhash',
+        addresses: ['bitcoincash:qzv7t2pzn2d0pklnetdjt65crh6fe8vnhuwvhsk2nn']
+      }
+    },
+    {
+      value: 0.68368564,
+      n: 3,
+      scriptPubKey: {
+        asm:
+          'OP_DUP OP_HASH160 422e1b3b400864bfd3146dd9c628de0f1da62289 OP_EQUALVERIFY OP_CHECKSIG',
+        hex: '76a914422e1b3b400864bfd3146dd9c628de0f1da6228988ac',
+        reqSigs: 1,
+        type: 'pubkeyhash',
+        addresses: ['bitcoincash:qppzuxemgqyxf07nz3kan33gmc83mf3z3yz295c4s7']
+      }
+    }
+  ],
+  hex:
+    '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',
+  blockhash: '0000000000000000015284202422a688554b7fc80c54f18122847a99c4f79607',
+  confirmations: 76722,
+  time: 1570392893,
+  blocktime: 1570392893
+}
+
+const mockOpReturnData01 = {
+  tokenType: 1,
+  txType: 'SEND',
+  tokenId: '497291b8a1dfe69c8daea50677a3d31a5ef0e9484d8bebb610dac64bbc202fb7',
+  amounts: ['100000000', '99883300000000']
+}
+
+const mockOpReturnData02 = {
+  tokenType: 1,
+  txType: 'GENESIS',
+  ticker: 'TOK-CH',
+  name: 'TokyoCash',
+  tokenId: '497291b8a1dfe69c8daea50677a3d31a5ef0e9484d8bebb610dac64bbc202fb7',
+  documentUri: '',
+  documentHash: '',
+  decimals: 8,
+  mintBatonVout: 0,
+  qty: '2100000000000000'
+}
+
+const mockOpReturnData03 = {
+  tokenType: 1,
+  txType: 'SEND',
+  tokenId: '497291b8a1dfe69c8daea50677a3d31a5ef0e9484d8bebb610dac64bbc202fb7',
+  amounts: ['1000000000', '99883400000000']
+}
+
+module.exports = {
+  nonSlpTxDetails,
+  slpTxDetails,
+  mockOpReturnData01,
+  mockOpReturnData02,
+  mockOpReturnData03
+}

test/unit/price.js

@@ -67,4 +67,26 @@ describe('#price', () => {
       assert.isNumber(result)
     })
   })
+  describe('#getBchUsd', () => {
+    it('should get the USD price of BCH', async () => {
+      sandbox.stub(bchjs.Price.axios, 'get').resolves({ data: { usd: 510.39 } })
+
+      const result = await bchjs.Price.getBchUsd()
+      // console.log(result)
+
+      assert.isNumber(result)
+    })
+    it('should handle error', async () => {
+      try {
+        sandbox.stub(bchjs.Price.axios, 'get').throws(new Error('test error'))
+
+        await bchjs.Price.getBchUsd()
+        // console.log(result)
+
+        assert.equal(false, true, 'unexpected error')
+      } catch (err) {
+        assert.include(err.message, 'test error')
+      }
+    })
+  })
 })

test/unit/raw-tranactions.js

@@ -1,6 +1,5 @@
 /*
-  TODO:
-  -Create a mocking library of data to compare unit and integration tests.
+  Unit tests for raw-transactions.js library.
 */
 
 // Public npm libraries
@@ -172,10 +171,15 @@ describe('#RawTransactions', () => {
   describe('#getTxData', () => {
     it('should return tx data with input addresses', async () => {
       // Mock dependencies
-      sandbox.stub(bchjs.RawTransactions, 'getRawTransaction').resolves(mockData.mockTx)
-      sandbox.stub(bchjs.RawTransactions, '_getInputAddrs').resolves(mockData.mockGetInputAddrsOutput)
+      sandbox
+        .stub(bchjs.RawTransactions, 'getRawTransaction')
+        .resolves(mockData.mockTx)
+      sandbox
+        .stub(bchjs.RawTransactions, '_getInputAddrs')
+        .resolves(mockData.mockGetInputAddrsOutput)
 
-      const txid = '05f7d4a4e25f53d63a360434eb54f221abf159112b7fffc91da1072a079cded3'
+      const txid =
+        '05f7d4a4e25f53d63a360434eb54f221abf159112b7fffc91da1072a079cded3'
 
       const result = await bchjs.RawTransactions.getTxData(txid)
       // console.log(`result: ${JSON.stringify(result, null, 2)}`)
@@ -191,7 +195,10 @@ describe('#RawTransactions', () => {
       } catch (err) {
         // console.log(err)
 
-        assert2.include(err.message, 'Input must be a string or array of strings')
+        assert2.include(
+          err.message,
+          'Input to raw-transaction.js/getTxData() must be a string containg a TXID.'
+        )
       }
     })
 
@@ -202,7 +209,8 @@ describe('#RawTransactions', () => {
           .stub(bchjs.RawTransactions, 'getRawTransaction')
           .rejects(new Error('test error'))
 
-        const txid = '05f7d4a4e25f53d63a360434eb54f221abf159112b7fffc91da1072a079cded3'
+        const txid =
+          '05f7d4a4e25f53d63a360434eb54f221abf159112b7fffc91da1072a079cded3'
 
         await bchjs.RawTransactions.getTxData(txid)
 

test/unit/slp-nft1.js

@@ -4,7 +4,7 @@
 
 const assert = require('chai').assert
 const sinon = require('sinon')
-// const axios = require("axios")
+const axios = require('axios')
 
 // Default to unit tests unless some other value for TEST is passed.
 if (!process.env.TEST) process.env.TEST = 'unit'
@@ -14,7 +14,7 @@ const BCHJS = require('../../src/bch-js')
 const bchjs = new BCHJS()
 
 // Mock data used for unit tests
-// const mockData = require("./fixtures/slp/mock-utils")
+const mockData = require('./fixtures/slp/mock-utils')
 
 // Default to unit tests unless some other value for TEST is passed.
 if (!process.env.TEST) process.env.TEST = 'unit'
@@ -253,4 +253,95 @@ describe('#SLP NFT1', () => {
       assert.isNumber(result.outputs)
     })
   })
+  describe('#listNFTGroupChildren', () => {
+    it('should throw an error for improper input', async () => {
+      try {
+        const groupId = 12345
+
+        await bchjs.SLP.NFT1.listNFTGroupChildren(groupId)
+        assert.equal(true, false, 'Unexpected result!')
+      } catch (err) {
+        // console.log(`err: `, err)
+        assert.include(
+          err.message,
+          'groupId must be a string'
+        )
+      }
+    })
+    it('should handle API response error', async () => {
+      try {
+        const error = new Error()
+        error.response = {
+          error: 'NFT group does not exists'
+        }
+        sandbox.stub(axios, 'get').throws(error)
+
+        const groupId = 'non-exists'
+        await bchjs.SLP.NFT1.listNFTGroupChildren(groupId)
+      } catch (err) {
+        assert.include(
+          err.response,
+          { error: 'NFT group does not exists' }
+        )
+      }
+    })
+    it('should return array of children GENESIS transactions IDs', async () => {
+      sandbox.stub(axios, 'get').resolves({ data: mockData.mockNftChildrenList })
+
+      const groupId = '68cd33ecd909068fbea318ae5ff1d6207cf754e53b191327d6d73b6916424c0a'
+      const result = await bchjs.SLP.NFT1.listNFTGroupChildren(groupId)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      assert.property(result, 'nftChildren')
+      assert.isArray(result.nftChildren)
+    })
+  })
+  describe('#parentNFTGroup', () => {
+    it('should throw an error for improper input', async () => {
+      try {
+        const tokenId = 12345
+
+        await bchjs.SLP.NFT1.parentNFTGroup(tokenId)
+        assert.equal(true, false, 'Unexpected result!')
+      } catch (err) {
+        // console.log(`err: `, err)
+        assert.include(
+          err.message,
+          'tokenId must be a string'
+        )
+      }
+    })
+    it('should handle API response error', async () => {
+      try {
+        const error = new Error()
+        error.response = {
+          error: 'NFT child does not exists'
+        }
+        sandbox.stub(axios, 'get').throws(error)
+
+        const tokenId = 'non-exists'
+        await bchjs.SLP.NFT1.parentNFTGroup(tokenId)
+      } catch (err) {
+        assert.include(
+          err.response,
+          { error: 'NFT child does not exists' }
+        )
+      }
+    })
+    it('should return parent NFT group information', async () => {
+      sandbox.stub(axios, 'get').resolves({ data: mockData.mockNftGroup })
+
+      const tokenId = '45a30085691d6ea586e3ec2aa9122e9b0e0d6c3c1fd357decccc15d8efde48a9'
+      const result = await bchjs.SLP.NFT1.parentNFTGroup(tokenId)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      assert.property(result, 'nftGroup')
+      assert.property(result.nftGroup, 'id')
+      assert.property(result.nftGroup, 'name')
+      assert.property(result.nftGroup, 'symbol')
+      assert.property(result.nftGroup, 'documentUri')
+      assert.property(result.nftGroup, 'versionType')
+      assert.property(result.nftGroup, 'initialTokenQty')
+    })
+  })
 })

test/unit/slp-utils.js

@@ -10,7 +10,7 @@ let uut
 
 const REST_URL = process.env.RESTURL
   ? process.env.RESTURL
-  : 'https://bchn.fullstack.cash/v4/'
+  : 'https://bchn.fullstack.cash/v5/'
 
 // Mock data used for unit tests
 const mockDataLib = require('./fixtures/slp/mock-utils')
@@ -453,33 +453,383 @@ describe('#SLP Utils', () => {
       assert.equal(data.qty, 1)
     })
 
-    // it("should decode a NFT Child transaction", async () => {
-    //   // Mock the call to the REST API.
-    //   // sandbox
-    //   //   .stub(uut.Utils.axios, "get")
-    //   //   .resolves({ data: mockData.txDetailsSLPNftGenesis })
-    //
-    //   const txid =
-    //     "3de3766b10506c9156533f1639979e49d1884521543c13e4af73647df1ed3f76"
-    //
-    //   const data = await uut.Utils.decodeOpReturn(txid)
-    //   console.log(`data: ${JSON.stringify(data, null, 2)}`)
-    //
-    //   // assert.property(data, "tokenType")
-    //   // assert.property(data, "txType")
-    //   // assert.property(data, "ticker")
-    //   // assert.property(data, "name")
-    //   // assert.property(data, "tokenId")
-    //   // assert.property(data, "documentUri")
-    //   // assert.property(data, "documentHash")
-    //   // assert.property(data, "decimals")
-    //   // assert.property(data, "mintBatonVout")
-    //   // assert.property(data, "qty")
-    //   //
-    //   // assert.equal(data.tokenType, 129)
-    //   // assert.equal(data.mintBatonVout, 2)
-    //   // assert.equal(data.qty, 1)
-    // })
+    it('should decode a NFT Child transaction', async () => {
+      // Mock the call to the REST API.
+      sandbox
+        .stub(uut.Utils.axios, 'post')
+        .resolves({ data: [mockData.txDetailsSLPNftChild] })
+
+      const txid =
+        'eeddccc4d716f04157ea132ac93a48040fea34a6b57f3d8f0cccb7d1a731ab2b'
+
+      const data = await uut.Utils.decodeOpReturn(txid)
+      // console.log(`data: ${JSON.stringify(data, null, 2)}`)
+
+      assert.property(data, 'tokenType')
+      assert.property(data, 'txType')
+      assert.property(data, 'ticker')
+      assert.property(data, 'name')
+      assert.property(data, 'tokenId')
+      assert.property(data, 'documentUri')
+      assert.property(data, 'documentHash')
+      assert.property(data, 'decimals')
+      assert.property(data, 'mintBatonVout')
+      assert.property(data, 'qty')
+
+      assert.equal(data.tokenType, 65)
+      assert.equal(data.mintBatonVout, 0)
+      assert.equal(data.qty, '1')
+    })
+
+    // 429 means the user is exceeding the rate limits.
+    it('should throw error when axios returns 429 status', async () => {
+      try {
+        // Mock the call to the REST API
+        sandbox.stub(uut.Utils.axios, 'post').rejects(mockData.mock429Error)
+
+        const txid =
+          'a60a522cc11ad7011b74e57fbabbd99296e4b9346bcb175dcf84efb737030415'
+
+        await uut.Utils.decodeOpReturn(txid)
+        // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+        assert.fail('Unexpect result')
+      } catch (err) {
+        // console.log('err: ', err)
+
+        assert.property(err, 'message')
+        assert.property(err, 'response')
+        assert.equal(err.response.status, 429)
+        assert.equal(err.response.statusText, 'Too Many Requests')
+        assert.include(err.response.data.error, 'Too many requests')
+      }
+    })
+
+    // 503 means the service is down.
+    it('should throw error when axios returns 503 status', async () => {
+      try {
+        // Mock the call to the REST API
+        sandbox.stub(uut.Utils.axios, 'post').rejects(mockData.mock503Error)
+
+        const txid =
+          'a60a522cc11ad7011b74e57fbabbd99296e4b9346bcb175dcf84efb737030415'
+
+        await uut.Utils.decodeOpReturn(txid)
+        // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+        assert.fail('Unexpect result')
+      } catch (err) {
+        // console.log('err: ', err)
+
+        assert.property(err, 'message')
+        assert.property(err, 'response')
+        assert.equal(err.response.status, 503)
+        assert.equal(err.response.statusText, 'Service Unavailable')
+        assert.property(err.response, 'data')
+      }
+    })
+  })
+
+  describe('#_hydrateUtxo', () => {
+    // // This captures an important corner-case. When an SLP token is created, the
+    // // change UTXO will contain the same SLP txid, but it is not an SLP UTXO.
+    it('should return details on minting baton from genesis transaction', async () => {
+      // Mock the call to REST API
+      // sandbox.stub(uut.Utils, 'waterfallValidateTxid').resolves(true)
+
+      // Stub the calls to decodeOpReturn.
+      sandbox.stub(uut.Utils, 'decodeOpReturn').resolves({
+        tokenType: 1,
+        txType: 'GENESIS',
+        ticker: 'SLPSDK',
+        name: 'SLP SDK example using BITBOX',
+        tokenId:
+          'bd158c564dd4ef54305b14f44f8e94c44b649f246dab14bcb42fb0d0078b8a90',
+        documentUri: 'developer.bitcoin.com',
+        documentHash: '',
+        decimals: 8,
+        mintBatonVout: 2,
+        qty: '50700000000'
+      })
+
+      const utxos = [
+        {
+          txid:
+            'bd158c564dd4ef54305b14f44f8e94c44b649f246dab14bcb42fb0d0078b8a90',
+          vout: 3,
+          amount: 0.00002015,
+          satoshis: 2015,
+          height: 594892,
+          confirmations: 5
+        },
+        {
+          txid:
+            'bd158c564dd4ef54305b14f44f8e94c44b649f246dab14bcb42fb0d0078b8a90',
+          vout: 2,
+          amount: 0.00000546,
+          satoshis: 546,
+          height: 594892,
+          confirmations: 5
+        }
+      ]
+
+      const data = await uut.Utils._hydrateUtxo(utxos)
+      // console.log(`data: ${JSON.stringify(data, null, 2)}`)
+
+      // assert.equal(data[0], false, "Change UTXO marked as false.")
+      assert.property(data[0], 'txid')
+      assert.property(data[0], 'vout')
+      assert.property(data[0], 'amount')
+      assert.property(data[0], 'satoshis')
+      assert.property(data[0], 'height')
+      assert.property(data[0], 'confirmations')
+      assert.property(data[0], 'isValid')
+      assert.equal(data[0].isValid, false)
+
+      assert.property(data[1], 'txid')
+      assert.property(data[1], 'vout')
+      assert.property(data[1], 'amount')
+      assert.property(data[1], 'satoshis')
+      assert.property(data[1], 'height')
+      assert.property(data[1], 'confirmations')
+      assert.property(data[1], 'utxoType')
+      assert.property(data[1], 'tokenId')
+      assert.property(data[1], 'tokenTicker')
+      assert.property(data[1], 'tokenName')
+      assert.property(data[1], 'tokenDocumentUrl')
+      assert.property(data[1], 'tokenDocumentHash')
+      assert.property(data[1], 'decimals')
+    })
+
+    // 429 means the user is exceeding the rate limits.
+    it('should return isValid=null for 429 rate limit error', async () => {
+      // Force decodeOpReturn() to throw a 429 error.
+      sandbox.stub(uut.Utils, 'decodeOpReturn').rejects(mockData.mock429Error)
+
+      const utxos = [
+        {
+          txid:
+            'bd158c564dd4ef54305b14f44f8e94c44b649f246dab14bcb42fb0d0078b8a90',
+          vout: 3,
+          amount: 0.00002015,
+          satoshis: 2015,
+          height: 594892,
+          confirmations: 5
+        },
+        {
+          txid:
+            'bd158c564dd4ef54305b14f44f8e94c44b649f246dab14bcb42fb0d0078b8a90',
+          vout: 2,
+          amount: 0.00000546,
+          satoshis: 546,
+          height: 594892,
+          confirmations: 5
+        }
+      ]
+
+      const result = await uut.Utils._hydrateUtxo(utxos)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      assert.equal(result[0].isValid, null)
+      assert.equal(result[1].isValid, null)
+    })
+
+    // 503 means the server is down or is not responding.
+    it('should return isValid=null for 503 rate limit error', async () => {
+      // Force decodeOpReturn() to throw a 429 error.
+      sandbox.stub(uut.Utils, 'decodeOpReturn').rejects(mockData.mock503Error)
+
+      const utxos = [
+        {
+          txid:
+            'bd158c564dd4ef54305b14f44f8e94c44b649f246dab14bcb42fb0d0078b8a90',
+          vout: 3,
+          amount: 0.00002015,
+          satoshis: 2015,
+          height: 594892,
+          confirmations: 5
+        },
+        {
+          txid:
+            'bd158c564dd4ef54305b14f44f8e94c44b649f246dab14bcb42fb0d0078b8a90',
+          vout: 2,
+          amount: 0.00000546,
+          satoshis: 546,
+          height: 594892,
+          confirmations: 5
+        }
+      ]
+
+      const result = await uut.Utils._hydrateUtxo(utxos)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      assert.equal(result[0].isValid, null)
+      assert.equal(result[1].isValid, null)
+    })
+
+    it('should return details for a simple SEND SLP token utxo', async () => {
+      // Mock the call to REST API
+      // Stub the calls to decodeOpReturn.
+      sandbox
+        .stub(uut.Utils, 'decodeOpReturn')
+        .onCall(0)
+        .resolves({
+          tokenType: 1,
+          txType: 'SEND',
+          tokenId:
+            '497291b8a1dfe69c8daea50677a3d31a5ef0e9484d8bebb610dac64bbc202fb7',
+          amounts: ['200000000', '99887500000000']
+        })
+        .onCall(1)
+        .resolves({
+          tokenType: 1,
+          txType: 'GENESIS',
+          ticker: 'TOK-CH',
+          name: 'TokyoCash',
+          tokenId:
+            '497291b8a1dfe69c8daea50677a3d31a5ef0e9484d8bebb610dac64bbc202fb7',
+          documentUri: '',
+          documentHash: '',
+          decimals: 8,
+          mintBatonVout: 0,
+          qty: '2100000000000000'
+        })
+
+      // sandbox.stub(uut.Utils, 'waterfallValidateTxid').resolves(true)
+
+      const utxos = [
+        {
+          txid:
+            'fde117b1f176b231e2fa9a6cb022e0f7c31c288221df6bcb05f8b7d040ca87cb',
+          vout: 1,
+          amount: 0.00000546,
+          satoshis: 546,
+          height: 596089,
+          confirmations: 748
+        }
+      ]
+
+      const data = await uut.Utils._hydrateUtxo(utxos)
+      // console.log(`data: ${JSON.stringify(data, null, 2)}`)
+
+      assert.property(data[0], 'txid')
+      assert.property(data[0], 'vout')
+      assert.property(data[0], 'amount')
+      assert.property(data[0], 'satoshis')
+      assert.property(data[0], 'height')
+      assert.property(data[0], 'confirmations')
+      assert.property(data[0], 'utxoType')
+      assert.property(data[0], 'tokenId')
+      assert.property(data[0], 'tokenTicker')
+      assert.property(data[0], 'tokenName')
+      assert.property(data[0], 'tokenDocumentUrl')
+      assert.property(data[0], 'tokenDocumentHash')
+      assert.property(data[0], 'decimals')
+      assert.property(data[0], 'tokenQty')
+      assert.property(data[0], 'isValid')
+      assert.equal(data[0].isValid, null)
+    })
+
+    // I don't know if this is the ideal behavior, but this is the behavior
+    // that is in production, so I wanted to capture it in a test case. This
+    // behavior can always be changed in the future.
+    it('should throw error if 429 when querying Genesis transaction', async () => {
+      try {
+        // Mock the call to REST API
+        // Stub the calls to decodeOpReturn.
+        sandbox
+          .stub(uut.Utils, 'decodeOpReturn')
+          .onCall(0)
+          .resolves({
+            tokenType: 1,
+            txType: 'SEND',
+            tokenId:
+              '497291b8a1dfe69c8daea50677a3d31a5ef0e9484d8bebb610dac64bbc202fb7',
+            amounts: ['200000000', '99887500000000']
+          })
+          .onCall(1)
+          .rejects(mockData.mock429Error)
+
+        const utxos = [
+          {
+            txid:
+              'fde117b1f176b231e2fa9a6cb022e0f7c31c288221df6bcb05f8b7d040ca87cb',
+            vout: 1,
+            amount: 0.00000546,
+            satoshis: 546,
+            height: 596089,
+            confirmations: 748
+          }
+        ]
+
+        await uut.Utils._hydrateUtxo(utxos)
+
+        assert.fail('Unexpected result')
+      } catch (err) {
+        // console.log('error: ', err)
+
+        assert.property(err, 'message')
+        assert.property(err, 'response')
+        assert.equal(err.response.status, 429)
+        assert.equal(err.response.statusText, 'Too Many Requests')
+        assert.include(err.response.data.error, 'Too many requests')
+      }
+    })
+
+    it('should add delay if delay is specified', async () => {
+      // Mock the call to REST API
+      // Stub the calls to decodeOpReturn.
+      sandbox
+        .stub(uut.Utils, 'decodeOpReturn')
+        .onCall(0)
+        .resolves({
+          tokenType: 1,
+          txType: 'SEND',
+          tokenId:
+            '497291b8a1dfe69c8daea50677a3d31a5ef0e9484d8bebb610dac64bbc202fb7',
+          amounts: ['200000000', '99887500000000']
+        })
+        .onCall(1)
+        .resolves({
+          tokenType: 1,
+          txType: 'GENESIS',
+          ticker: 'TOK-CH',
+          name: 'TokyoCash',
+          tokenId:
+            '497291b8a1dfe69c8daea50677a3d31a5ef0e9484d8bebb610dac64bbc202fb7',
+          documentUri: '',
+          documentHash: '',
+          decimals: 8,
+          mintBatonVout: 0,
+          qty: '2100000000000000'
+        })
+
+      // sandbox.stub(uut.Utils, 'waterfallValidateTxid').resolves(true)
+
+      const utxos = [
+        {
+          txid:
+            'fde117b1f176b231e2fa9a6cb022e0f7c31c288221df6bcb05f8b7d040ca87cb',
+          vout: 1,
+          amount: 0.00000546,
+          satoshis: 546,
+          height: 596089,
+          confirmations: 748
+        }
+      ]
+
+      const usrObj = {
+        utxoDelay: 100
+      }
+
+      await uut.Utils._hydrateUtxo(utxos, usrObj)
+      // console.log(`data: ${JSON.stringify(data, null, 2)}`)
+
+      // TODO: This test should realy assert that the test took at least 100mS
+      // to complete. However, as-is, it exercises the code path, so not
+      // throwing an error can be considered a pass.
+      assert.equal(true, true)
+    })
   })
 
   describe('#tokenUtxoDetails', () => {
@@ -1931,23 +2281,25 @@ describe('#SLP Utils', () => {
       assert.equal(result, true)
     })
 
-    it('catches and throws an error', async () => {
-      try {
-        const txid = 'fakeTxid'
-
-        // Force an error
-        sandbox
-          .stub(uut.Utils, 'validateTxid3')
-          .rejects(new Error('fake error'))
-
-        await await uut.Utils.waterfallValidateTxid(txid)
-
-        assert.fail('Unexpected result')
-      } catch (err) {
-        // console.log(`err.message: ${err.message}`)
-        assert.include(err.message, 'fake error')
-      }
-    })
+    // CT 08-09-21 Changed behavior. validateTxid3() is now wrapped in a
+    // try/catch statement that exits quietly if there is an error.
+    // it('catches and throws an error', async () => {
+    //   try {
+    //     const txid = 'fakeTxid'
+    //
+    //     // Force an error
+    //     sandbox
+    //       .stub(uut.Utils, 'validateTxid3')
+    //       .rejects(new Error('fake error'))
+    //
+    //     await await uut.Utils.waterfallValidateTxid(txid)
+    //
+    //     assert.fail('Unexpected result')
+    //   } catch (err) {
+    //     // console.log(`err.message: ${err.message}`)
+    //     assert.include(err.message, 'fake error')
+    //   }
+    // })
   })
 
   describe('#getWhitelist', () => {

test/unit/transaction-unit.js

@@ -0,0 +1,119 @@
+/*
+  Unit tests for the transaction.js library.
+*/
+
+// Public npm libraries
+const assert = require('chai').assert
+const sinon = require('sinon')
+
+const BCHJS = require('../../src/bch-js')
+const bchjs = new BCHJS()
+
+const mockData = require('./fixtures/transaction-mock.js')
+
+describe('#TransactionLib', () => {
+  let sandbox
+  beforeEach(() => (sandbox = sinon.createSandbox()))
+  afterEach(() => sandbox.restore())
+
+  describe('#get', () => {
+    it('should throw an error if txid is not specified', async () => {
+      try {
+        await bchjs.Transaction.get()
+
+        assert.fail('Unexpected code path!')
+      } catch (err) {
+        assert.include(
+          err.message,
+          'Input to Transaction.get() must be a string containing a TXID.'
+        )
+      }
+    })
+
+    it('should get details about a non-SLP transaction', async () => {
+      const txid =
+        '2b37bdb3b63dd0bca720437754a36671431a950e684b64c44ea910ea9d5297c7'
+
+      // Mock dependencies
+      sandbox
+        .stub(bchjs.Transaction.rawTransaction, 'getTxData')
+        .resolves(mockData.nonSlpTxDetails)
+
+      const result = await bchjs.Transaction.get(txid)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      // Assert that there are stanardized properties.
+      assert.property(result, 'txid')
+      assert.property(result, 'vin')
+      assert.property(result, 'vout')
+      assert.property(result.vout[0], 'value')
+      assert.property(result.vout[0].scriptPubKey, 'addresses')
+
+      // Assert that added properties exist.
+      assert.property(result.vin[0], 'address')
+      assert.property(result.vin[0], 'value')
+      assert.property(result, 'isValidSLPTx')
+      assert.equal(result.isValidSLPTx, false)
+    })
+
+    it('should get details about a SLP transaction', async () => {
+      // Mock dependencies
+      sandbox
+        .stub(bchjs.Transaction.rawTransaction, 'getTxData')
+        .resolves(mockData.slpTxDetails)
+      sandbox
+        .stub(bchjs.Transaction.slpUtils, 'decodeOpReturn')
+        .onCall(0)
+        .resolves(mockData.mockOpReturnData01)
+        .onCall(1)
+        .resolves(mockData.mockOpReturnData02)
+        .onCall(2)
+        .resolves(mockData.mockOpReturnData03)
+        .onCall(3)
+        .rejects(new Error('No OP_RETURN'))
+      sandbox
+        .stub(bchjs.Transaction.slpUtils, 'waterfallValidateTxid')
+        .resolves(true)
+
+      const txid =
+        '266844d53e46bbd7dd37134688dffea6e54d944edff27a0add63dd0908839bc1'
+
+      const result = await bchjs.Transaction.get(txid)
+      // console.log(`result: ${JSON.stringify(result, null, 2)}`)
+
+      // Assert that there are stanardized properties.
+      assert.property(result, 'txid')
+      assert.property(result, 'vin')
+      assert.property(result, 'vout')
+      assert.property(result.vout[0], 'value')
+      assert.property(result.vout[1].scriptPubKey, 'addresses')
+
+      // Assert that added properties exist.
+      assert.property(result.vout[0], 'tokenQty')
+      assert.equal(result.vout[0].tokenQty, null)
+      assert.property(result.vin[0], 'address')
+      assert.property(result.vin[0], 'value')
+      assert.property(result.vin[0], 'tokenQty')
+      assert.property(result, 'isValidSLPTx')
+      assert.equal(result.isValidSLPTx, true)
+    })
+
+    it('should catch and throw error on network error', async () => {
+      try {
+        const txid =
+          '2b37bdb3b63dd0bca720437754a36671431a950e684b64c44ea910ea9d5297c7'
+
+        // Force an error
+        sandbox
+          .stub(bchjs.Transaction.rawTransaction, 'getTxData')
+          .rejects(new Error('test error'))
+
+        await bchjs.Transaction.get(txid)
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(err.message, 'test error')
+      }
+    })
+  })
+})