Merge pull request #47 from Permissionless-Software-Foundation/ct-unstable

fix(deps): Updating dependencies

README.md

@@ -6,6 +6,10 @@ This is a REST API server based on [Koa](https://koajs.com/). It's essentially a
 
 When started, this web server starts an [IPFS](https://ipfs.io) node and connects to an ipfs-bch-wallet-service server over the IPFS network. It then pipes that connection over its own localized REST API.
 
+More details are available at [CashStack.info](https://CashStack.info).
+
+- [Video: Using ipfs-bch-wallet-consumer](https://youtu.be/7ntMPuqAX64)
+
 ## Requirements
 
 - node **^14.18.2**
@@ -17,20 +21,18 @@ When started, this web server starts an [IPFS](https://ipfs.io) node and connect
 
 ### Development Environment
 
-**Note:** This software now uses an external go-ipfs IPFS node. The instructions below have not been updated to reflect this.
+To run this software, you must have an instance of go-ipfs running in daemon mode, with the `--enable-pubsub-experiment` flag set. [Here are instruction for installing go-ipfs](https://gist.github.com/christroutner/a39f656850dc022b60f25c9663dd1cdd#install-ipfs).
 
-A development environment will allow you modify the code on-the-fly and contribute to the code base of this repository. [PM2](https://www.npmjs.com/package/pm2) is recommended for running this code base as an IPFS Circuit Relay.
-
-- [Video: Installing ipfs-service-provider](https://youtu.be/Z0NsboIVN44)
-- [Step-by-step installation instructions](https://gist.github.com/christroutner/3304a71d4c12a3a3e1664a438f64d9d0)
+Clone this repository and install npm dependencies. You'll also need to install MongoDB if you don't already have it installed:
 
 ```bash
-git clone https://github.com/Permissionless-Software-Foundation/ipfs-service-provider
-cd ipfs-service-provider
+git clone https://github.com/Permissionless-Software-Foundation/ipfs-bch-wallet-consumer
+cd ipfs-bch-wallet-consumer
 ./install-mongo-sh
 sudo npm install -g node-pre-gyp
 npm install
-./ipfs-service-provider.sh
+cd shell-script
+./local-external-ipfs-node.sh
 ```
 
 ### Production Environment
@@ -44,19 +46,9 @@ docker-compose up -d
 
 You can bring the containers back up with `docker-compose up -d`.
 
-### Operation Notes
+## Code Structure
 
-- There is a memory leak in the version of js-ipfs. The app is currently configured to shut down every 8 hours to flush memory. It relies on a process manager like pm2, Docker, or systemd to restart the app after it shuts down, in order to ensure continuous operation.
-
-- The PSF network operates as a private network. It does not connect or interact with the wider PSF network, relying instead on gateways to bridge the two networks, when they need to share content. This improves the performance and experience for everyone in the PSF network. To join the network, you'll need to add the [swarm.key](./swarm.key) file to the IPFS data folder.
-
-- [Instructions on setting up IPFS private networks.](https://github.com/ipfs/go-ipfs/blob/master/docs/experimental-features.md#private-networks)
-- For external installations, the swarm.key file will typically go in `~/.ipfs/swarm.key`
-- For production Docker containers, the key would go in `ipfs-service-provider/production/data/go-ipfs/data/swarm.key`
-
-## Structure
-
-The file layout of this repository differs from the koa-api-boilerplate. Instead, it follows the file layout of [Clean Architecture](troutsblog.com/blog/clean-architecture).
+The file layout of this repository differs from the koa-api-boilerplate. Instead, it follows the file layout of [Clean Architecture](https://christroutner.github.io/trouts-blog/blog/clean-architecture).
 
 ## Usage
 
@@ -76,19 +68,7 @@ There is additional developer documentation in the [dev-docs directory](./dev-do
 
 ## Dependencies
 
-- [koa2](https://github.com/koajs/koa/tree/v2.x)
-- [koa-router](https://github.com/alexmingoia/koa-router)
-- [koa-bodyparser](https://github.com/koajs/bodyparser)
-- [koa-generic-session](https://github.com/koajs/generic-session)
-- [koa-logger](https://github.com/koajs/logger)
-- [MongoDB](http://mongodb.org/)
-- [Mongoose](http://mongoosejs.com/)
-- [Passport](http://passportjs.org/)
-- [Nodemon](http://nodemon.io/)
-- [Mocha](https://mochajs.org/)
-- [apidoc](http://apidocjs.com/)
-- [ESLint](http://eslint.org/)
-- [ipfs-coord](https://www.npmjs.com/package/ipfs-coord)
+This repository is forked from [ipfs-service-provider](https://github.com/Permissionless-Software-Foundation/ipfs-service-provider).
 
 ## IPFS
 

config/env/common.js

@@ -84,6 +84,8 @@ module.exports = {
   preferredProvider: process.env.PREFERRED_PROVIDER
     ? process.env.PREFERRED_PROVIDER
     : '',
+  // If true, users will not be able to change the provider via a REST API call.
+  freezeProvider: process.env.FREEZE_PROVIDER ? true : false,
   //  : 'QmdBGB8S6sEr19gaAxJYjhRbz5ZmMiH5a1JyyMmaxcRKnY'
   // : 'QmUTx6KqYKVZbKpKxR7vGDUgZFYVvVVyEWDeCYq4GwBCff'
   // Used for development

package-lock.json

@@ -9,12 +9,12 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
-        "@psf/bch-js": "6.5.1",
+        "@psf/bch-js": "6.7.3",
         "axios": "0.27.2",
         "bcryptjs": "2.4.3",
         "glob": "7.1.6",
         "ipfs": "0.62.3",
-        "ipfs-coord": "8.0.5",
+        "ipfs-coord": "8.0.8",
         "ipfs-http-client": "55.0.0",
         "jsonrpc-lite": "2.2.0",
         "jsonwebtoken": "8.5.1",
@@ -1481,14 +1481,15 @@
       "license": "BSD-3-Clause"
     },
     "node_modules/@psf/bch-js": {
-      "version": "6.5.1",
-      "resolved": "https://registry.npmjs.org/@psf/bch-js/-/bch-js-6.5.1.tgz",
-      "integrity": "sha512-W52V6NCte/LJZ2TMJwXorq2FdwMMzjS94sh4slebrcUp6oHiAG+/NouQ4ID/I1DEJQlQnQpf2j3zxveCimDERQ==",
+      "version": "6.7.3",
+      "resolved": "http://94.130.170.209:4873/@psf%2fbch-js/-/bch-js-6.7.3.tgz",
+      "integrity": "sha512-z6oJvPAXxSObPhqUAxCkCuPL2bp3Bs1oyhBZpQ5SR6cbJzcOMhuI4bHho2srH5agSCU+bbjehBMRGvo18eGW0A==",
+      "license": "MIT",
       "dependencies": {
         "@chris.troutner/bip32-utils": "1.0.5",
         "@psf/bip21": "2.0.1",
         "@psf/bitcoincash-ops": "2.0.0",
-        "@psf/bitcoincashjs-lib": "4.0.2",
+        "@psf/bitcoincashjs-lib": "4.0.3",
         "@psf/coininfo": "4.0.0",
         "axios": "0.26.1",
         "bc-bip68": "1.0.5",
@@ -1536,9 +1537,9 @@
       "license": "MIT"
     },
     "node_modules/@psf/bitcoincashjs-lib": {
-      "version": "4.0.2",
-      "resolved": "http://94.130.170.209:4873/@psf%2fbitcoincashjs-lib/-/bitcoincashjs-lib-4.0.2.tgz",
-      "integrity": "sha512-fTy9mW4H0NkQ+dojGtf+nPduA27F3V2YpBi5licYUVjdVRD/xpUCTgEN1cYRAupOaeDH/AYOWT0MWLkbQSTxAQ==",
+      "version": "4.0.3",
+      "resolved": "http://94.130.170.209:4873/@psf%2fbitcoincashjs-lib/-/bitcoincashjs-lib-4.0.3.tgz",
+      "integrity": "sha512-sJYi7jYUqR7S+Z8TjN3W/5Lcju7xcIBxYLhIEpnOF+jR9kMt0ftpVjQBt8vVsJZUD8ArL9bf59oDETjdOUcdGQ==",
       "license": "MIT",
       "dependencies": {
         "@psf/bitcoincash-ops": "^2.0.0",
@@ -8839,9 +8840,10 @@
       }
     },
     "node_modules/ipfs-coord": {
-      "version": "8.0.5",
-      "resolved": "https://registry.npmjs.org/ipfs-coord/-/ipfs-coord-8.0.5.tgz",
-      "integrity": "sha512-V4pqR+MU290ZxFRE+Rx/7JuxR7LsOFBLuL0av3eVU5ZQWqeF/Zi9vh52zCqpp1IBCXi4QXNZGlysvm16xFDXww==",
+      "version": "8.0.8",
+      "resolved": "http://94.130.170.209:4873/ipfs-coord/-/ipfs-coord-8.0.8.tgz",
+      "integrity": "sha512-2ivZ7dCIrpS7VBN0DohaGBYRe3bzybkGbl0lOTyNeCUhrrYniC66dAnfdCY8CmpEeXoEYsaW2hLmohz4jDHywQ==",
+      "license": "MIT",
       "dependencies": {
         "axios": "0.21.4",
         "bch-encrypt-lib": "2.0.0",
@@ -23175,14 +23177,14 @@
       "integrity": "sha1-p3c2C1s5oaLlEG+OhY8v0tBgxXA="
     },
     "@psf/bch-js": {
-      "version": "6.5.1",
-      "resolved": "https://registry.npmjs.org/@psf/bch-js/-/bch-js-6.5.1.tgz",
-      "integrity": "sha512-W52V6NCte/LJZ2TMJwXorq2FdwMMzjS94sh4slebrcUp6oHiAG+/NouQ4ID/I1DEJQlQnQpf2j3zxveCimDERQ==",
+      "version": "6.7.3",
+      "resolved": "http://94.130.170.209:4873/@psf%2fbch-js/-/bch-js-6.7.3.tgz",
+      "integrity": "sha512-z6oJvPAXxSObPhqUAxCkCuPL2bp3Bs1oyhBZpQ5SR6cbJzcOMhuI4bHho2srH5agSCU+bbjehBMRGvo18eGW0A==",
       "requires": {
         "@chris.troutner/bip32-utils": "1.0.5",
         "@psf/bip21": "2.0.1",
         "@psf/bitcoincash-ops": "2.0.0",
-        "@psf/bitcoincashjs-lib": "4.0.2",
+        "@psf/bitcoincashjs-lib": "4.0.3",
         "@psf/coininfo": "4.0.0",
         "axios": "0.26.1",
         "bc-bip68": "1.0.5",
@@ -23229,9 +23231,9 @@
       "integrity": "sha512-M3PWqRpeJq6rli2NqWGbas76z9TrdGOmNuDFACBWBMctPucEAsFQY2AmyFHRSa7hEwythwvrPh9AG/n6ehmEog=="
     },
     "@psf/bitcoincashjs-lib": {
-      "version": "4.0.2",
-      "resolved": "http://94.130.170.209:4873/@psf%2fbitcoincashjs-lib/-/bitcoincashjs-lib-4.0.2.tgz",
-      "integrity": "sha512-fTy9mW4H0NkQ+dojGtf+nPduA27F3V2YpBi5licYUVjdVRD/xpUCTgEN1cYRAupOaeDH/AYOWT0MWLkbQSTxAQ==",
+      "version": "4.0.3",
+      "resolved": "http://94.130.170.209:4873/@psf%2fbitcoincashjs-lib/-/bitcoincashjs-lib-4.0.3.tgz",
+      "integrity": "sha512-sJYi7jYUqR7S+Z8TjN3W/5Lcju7xcIBxYLhIEpnOF+jR9kMt0ftpVjQBt8vVsJZUD8ArL9bf59oDETjdOUcdGQ==",
       "requires": {
         "@psf/bitcoincash-ops": "^2.0.0",
         "@psf/pushdata-bitcoin": "^1.2.2",
@@ -28415,9 +28417,9 @@
       }
     },
     "ipfs-coord": {
-      "version": "8.0.5",
-      "resolved": "https://registry.npmjs.org/ipfs-coord/-/ipfs-coord-8.0.5.tgz",
-      "integrity": "sha512-V4pqR+MU290ZxFRE+Rx/7JuxR7LsOFBLuL0av3eVU5ZQWqeF/Zi9vh52zCqpp1IBCXi4QXNZGlysvm16xFDXww==",
+      "version": "8.0.8",
+      "resolved": "http://94.130.170.209:4873/ipfs-coord/-/ipfs-coord-8.0.8.tgz",
+      "integrity": "sha512-2ivZ7dCIrpS7VBN0DohaGBYRe3bzybkGbl0lOTyNeCUhrrYniC66dAnfdCY8CmpEeXoEYsaW2hLmohz4jDHywQ==",
       "requires": {
         "axios": "0.21.4",
         "bch-encrypt-lib": "2.0.0",

package.json

@@ -23,12 +23,12 @@
   },
   "repository": "Permissionless-Software-Foundation/ipfs-bch-wallet-consumer",
   "dependencies": {
-    "@psf/bch-js": "6.5.1",
+    "@psf/bch-js": "6.7.3",
     "axios": "0.27.2",
     "bcryptjs": "2.4.3",
     "glob": "7.1.6",
     "ipfs": "0.62.3",
-    "ipfs-coord": "8.0.5",
+    "ipfs-coord": "8.0.8",
     "ipfs-http-client": "55.0.0",
     "jsonrpc-lite": "2.2.0",
     "jsonwebtoken": "8.5.1",

src/adapters/bch/index.js

@@ -208,6 +208,60 @@ class BchAdapter {
     }
   }
 
+  // Query the UTXOs associated with an array of up to 20 addresses.
+  async getUtxosBulk (addrs) {
+    try {
+      // console.log('getUtxosBulk() addrs: ', addrs)
+
+      // Throw an error if this IPFS node has not yet made a connection to a
+      // wallet service provider.
+      const selectedProvider =
+        this.ipfs.ipfsCoordAdapter.state.selectedServiceProvider
+      if (!selectedProvider) {
+        throw new Error('No BCH Wallet Service provider available yet.')
+      }
+
+      // Input validation
+      if (!Array.isArray(addrs)) {
+        throw new Error('addresses parameter must be an array')
+      }
+      if (addrs.length > 20) {
+        throw new Error('addresses parameter must not exceed 20 elements')
+      }
+
+      const rpcData = {
+        endpoint: 'utxosBulk',
+        addresses: addrs
+      }
+
+      // Generate a UUID for the call.
+      const rpcId = this.uid()
+
+      // Generate a JSON RPC command.
+      const cmd = this.jsonrpc.request(rpcId, 'bch', rpcData)
+      const cmdStr = JSON.stringify(cmd)
+      // console.log('cmdStr: ', cmdStr)
+
+      // Send the RPC command to selected wallet service.
+      const thisNode = this.ipfs.ipfsCoordAdapter.ipfsCoord.thisNode
+      await this.ipfs.ipfsCoordAdapter.ipfsCoord.useCases.peer.sendPrivateMessage(
+        selectedProvider,
+        cmdStr,
+        thisNode
+      )
+
+      // Wait for data to come back from the wallet service.
+      const data = await this.waitForRPCResponse(rpcId)
+      // console.log(`getUtxosBulk() data: ${JSON.stringify(data, null, 2)}`)
+
+      return data
+    } catch (err) {
+      // console.log('createUser() error: ', err)
+      wlogger.error('Error in use-cases/bch.js/getUtxosBulk()')
+      throw err
+    }
+  }
+
   async broadcast (hex) {
     try {
       // Throw an error if this IPFS node has not yet made a connection to a
@@ -473,7 +527,7 @@ class BchAdapter {
   }
 
   // Get token icon and other media associated with the token.
-  async getTokenData2 (tokenId) {
+  async getTokenData2 (tokenId, updateCache) {
     try {
       // Throw an error if this IPFS node has not yet made a connection to a
       // wallet service provider.
@@ -485,7 +539,8 @@ class BchAdapter {
 
       const rpcData = {
         endpoint: 'getTokenData2',
-        tokenId
+        tokenId,
+        updateCache
       }
 
       // Generate a UUID for the call.

src/adapters/ipfs/ipfs-coord.js

@@ -214,6 +214,8 @@ class IpfsCoordAdapter {
   // providers. This method is called periodically by a timer-interval.
   pollForBchServices () {
     try {
+      // console.log('pollForBchServices() polling for BCH service')
+
       // An array of IPFS IDs of other nodes in the coordination pubsub channel.
       const peers = _this.ipfsCoord.thisNode.peerList
       // console.log(`peers: ${JSON.stringify(peers, null, 2)}`)
@@ -255,6 +257,8 @@ class IpfsCoordAdapter {
             console.log(`---->BCH wallet service selected: ${thisPeer}`)
           }
 
+          // console.log('preferredProvider: ', _this.config.preferredProvider)
+
           // If a preferred provider is set in the config file, then connect
           // to the preferred provider when it's discovered.
           if (
@@ -264,6 +268,8 @@ class IpfsCoordAdapter {
             _this.state.selectedServiceProvider = thisPeer
           }
 
+          // console.log('selectedServiceProvider: ', _this.state.selectedServiceProvider)
+
           // Check if the peer has already been added to the list of providers.
           const alreadyExists = _this.state.serviceProviders.filter(
             (x) => x === thisPeer

src/controllers/rest-api/bch/controller.js

@@ -65,7 +65,7 @@ class BchRESTControllerLib {
       const providerId = ctx.request.body.provider
 
       // Throw an error, if the provider has been set by an environment variable.
-      if (this.config.preferredProvider) {
+      if (this.config.freezeProvider) {
         throw new Error('Consumer has preferredProvider set in environment variable. Refusing to switch providers.')
       }
 
@@ -234,6 +234,103 @@ class BchRESTControllerLib {
     }
   }
 
+  /**
+   * @api {post} /bch/utxosBulk UTXOs Bulk
+   * @apiName UTXOs Bulk
+   * @apiGroup REST BCH
+   * @apiDescription This endpoint returns UTXOs held at an address, hydrated
+   *  with token information.
+   * @apiDescription This endpoint is the same as the /bch/utxos endpoint, but
+   * it allows an array of up to 20 addresses to be queried at the same time.
+   * This reduces the number of JSON RPC calls, and is very handy
+   * for HD wallets that need to quickly scan a lot of addresses.
+   *
+   *  Given an address, this endpoint will return an object with thre following
+   *  properties:
+   *
+   *  - addresses: [] - the addresses these UTXOs are associated with
+   *  - bchUtxos: [] - UTXOs confirmed to be spendable as normal BCH
+   *  - nullUtxo: [] - UTXOs that did not pass SLP validation. Should be ignored and
+   *    not spent, to be safe.
+   *  - slpUtxos: {} - UTXOs confirmed to be colored as valid SLP tokens
+   *    - type1: {}
+   *      - tokens: [] - SLP token Type 1 tokens.
+   *      - mintBatons: [] - SLP token Type 1 mint batons.
+   *    - nft: {}
+   *      - tokens: [] - NFT tokens
+   *      - groupTokens: [] - NFT Group tokens, used to create NFT tokens.
+   *      - groupMintBatons: [] - Minting baton to create more NFT Group tokens.
+   *
+   *
+   * @apiExample Example usage:
+   * curl -H "Content-Type: application/json" -X POST -d '{ "address": "bitcoincash:qrl2nlsaayk6ekxn80pq0ks32dya8xfclyktem2mqj" }' localhost:5001/bch/utxos
+   *
+   * @apiSuccessExample {json} Success-Response:
+   *     HTTP/1.1 200 OK
+   *     [
+   *        {
+   *           "addresses": ["bitcoincash:qrl2nlsaayk6ekxn80pq0ks32dya8xfclyktem2mqj"],
+   *           "bchUtxos":[
+   *              {
+   *                 "height":631219,
+   *                 "tx_hash":"ae2daa01c8172545b5edd205ea438706bcb74e63d4084a26b9ff2a46d46dc97f",
+   *                 "tx_pos":0,
+   *                 "value":1000,
+   *                 "txid":"ae2daa01c8172545b5edd205ea438706bcb74e63d4084a26b9ff2a46d46dc97f",
+   *                 "vout":0,
+   *                 "isValid":false
+   *              }
+   *           ],
+   *           "nullUtxos":[
+   *
+   *           ],
+   *           "slpUtxos":{
+   *              "type1":{
+   *                 "mintBatons":[
+   *
+   *                 ],
+   *                 "tokens":[
+   *
+   *                 ]
+   *              },
+   *              "nft":{
+   *                 "groupMintBatons":[
+   *
+   *                 ],
+   *                 "groupTokens":[
+   *
+   *                 ],
+   *                 "tokens":[
+   *
+   *                 ]
+   *              }
+   *           }
+   *        }
+   *     ]
+   *
+   * @apiError UnprocessableEntity Missing required parameters
+   *
+   * @apiErrorExample {json} Error-Response:
+   *     HTTP/1.1 422 Unprocessable Entity
+   *     {
+   *       "status": 422,
+   *       "error": "Unprocessable Entity"
+   *     }
+   */
+  async utxosBulk (ctx) {
+    try {
+      const addrs = ctx.request.body.addresses
+      // console.log('address: ', address)
+
+      const utxos = await this.adapters.bch.getUtxosBulk(addrs)
+      // console.log(`utxos: ${JSON.stringify(utxos, null, 2)}`)
+
+      ctx.body = utxos
+    } catch (err) {
+      this.handleError(ctx, err)
+    }
+  }
+
   /**
    * @api {post} /bch/broadcast Broadcast
    * @apiName Broadcast
@@ -609,12 +706,15 @@ class BchRESTControllerLib {
     *
     * @apiExample Example usage:
     * curl -H "Content-Type: application/json" -X POST -d '{ "tokenId": "43eddfb11c9941edffb8c8815574bb0a43969a7b1de39ad14cd043eaa24fd38d" }' https://bc01-ca-bch-consumer.fullstackcash.nl/bch/getTokenData2
+    * curl -H "Content-Type: application/json" -X POST -d '{ "tokenId": "43eddfb11c9941edffb8c8815574bb0a43969a7b1de39ad14cd043eaa24fd38d", "updateCache": true }' https://bc01-ca-bch-consumer.fullstackcash.nl/bch/getTokenData2
     */
   async getTokenData2 (ctx) {
     try {
       const tokenId = ctx.request.body.tokenId
+      const updateCache = ctx.request.body.updateCache
+      console.log('getTokenData2() updateCache: ', updateCache)
 
-      const data = await this.adapters.bch.getTokenData2(tokenId)
+      const data = await this.adapters.bch.getTokenData2(tokenId, updateCache)
       console.log(`getTokenData2 data: ${JSON.stringify(data, null, 2)}`)
 
       ctx.body = data

src/controllers/rest-api/bch/index.js

@@ -55,6 +55,7 @@ class BchRouter {
     this.router.post('/provider', this.postProvider)
     this.router.post('/balance', this.postBalance)
     this.router.post('/utxos', this.postUtxos)
+    this.router.post('/utxosBulk', this.postUtxosBulk)
     this.router.post('/broadcast', this.postBroadcast)
     this.router.post('/txHistory', this.postTxHistory)
     this.router.post('/txData', this.postTxData)
@@ -84,6 +85,10 @@ class BchRouter {
     await _this.bchRESTController.utxos(ctx, next)
   }
 
+  async postUtxosBulk (ctx, next) {
+    await _this.bchRESTController.utxosBulk(ctx, next)
+  }
+
   async postBroadcast (ctx, next) {
     await _this.bchRESTController.broadcast(ctx, next)
   }

swarm.key

@@ -1,3 +0,0 @@
-/key/swarm/psk/1.0.0/
-/base16/
-bbd935b70105b03ebd0c6a3c2d2730cd22fc0d18c490ccf689b6c8a22e1bed2a

test/unit/adapters/bch.adapter.unit.js

@@ -165,6 +165,82 @@ describe('#bch-use-case', () => {
     })
   })
 
+  describe('#getUtxos', () => {
+    it('should get the UTXOs of an address', async () => {
+      // Force connection to a wallet service
+      uut.ipfs.ipfsCoordAdapter.state = {
+        selectedServiceProvider: 'abc123'
+      }
+
+      // Mock depenencies
+      sandbox.stub(uut, 'waitForRPCResponse').resolves({ key: 'value' })
+
+      const addr = 'addr'
+
+      const result = await uut.getUtxos(addr)
+      // console.log('result: ', result)
+
+      assert.equal(result.key, 'value')
+    })
+
+    it('should catch and throw an error', async () => {
+      try {
+        await uut.getUtxos()
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        // console.log(err)
+        assert.equal(err.message, 'test error')
+      }
+    })
+  })
+
+  describe('#getUtxosBulk', () => {
+    it('should get the UTXOs of an address', async () => {
+      // Force connection to a wallet service
+      uut.ipfs.ipfsCoordAdapter.state = {
+        selectedServiceProvider: 'abc123'
+      }
+
+      // Mock depenencies
+      sandbox.stub(uut, 'waitForRPCResponse').resolves({ key: 'value' })
+
+      const addrs = ['addr']
+
+      const result = await uut.getUtxosBulk(addrs)
+      // console.log('result: ', result)
+
+      assert.equal(result.key, 'value')
+    })
+
+    it('should throw an error if addresses is not an array', async () => {
+      try {
+        await uut.getUtxosBulk()
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        // console.log(err)
+        assert.equal(err.message, 'addresses parameter must be an array')
+      }
+    })
+
+    it('should throw an error if addresses array is larger than 20 elements', async () => {
+      try {
+        const addrs = []
+        for (let i = 0; i < 25; i++) {
+          addrs.push(i)
+        }
+
+        await uut.getUtxosBulk(addrs)
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        // console.log(err)
+        assert.equal(err.message, 'addresses parameter must not exceed 20 elements')
+      }
+    })
+  })
+
   describe('#broadcast', () => {
     it('should broadcast a transaction', async () => {
       // Force connection to a wallet service

test/unit/controllers/rest-api/bch/bch.rest.controller.unit.js

@@ -177,6 +177,42 @@ describe('#BCH-REST-Controller', () => {
     })
   })
 
+  describe('#utxosBulk', () => {
+    it('should return 422 status on arbitrary error', async () => {
+      try {
+        // Force an error
+        sandbox
+          .stub(uut.adapters.bch, 'getUtxosBulk')
+          .rejects(new Error('test error'))
+
+        ctx.request.body = {
+          address: 'blah'
+        }
+
+        await uut.utxosBulk(ctx)
+
+        assert.fail('Unexpected result')
+      } catch (err) {
+        console.log('err: ', err)
+        assert.equal(err.status, 422)
+        assert.include(err.message, 'test error')
+      }
+    })
+
+    it('should return 200 status on success', async () => {
+      sandbox.stub(uut.adapters.bch, 'getUtxosBulk').resolves({ status: 200 })
+
+      ctx.request.body = {
+        address: 'blah'
+      }
+
+      await uut.utxosBulk(ctx)
+
+      // Assert the expected HTTP response
+      assert.equal(ctx.status, 200)
+    })
+  })
+
   describe('#broadcast', () => {
     it('should return 422 status on arbitrary error', async () => {
       try {

test/unit/mocks/adapters/index.js

@@ -93,6 +93,10 @@ class BchUseCaseMock {
     return {}
   }
 
+  async getUtxosBulk () {
+    return {}
+  }
+
   async broadcast () {
     return {}
   }