feat(utxoIsValid): Adding new bch endpoint

.on-save.json

@@ -0,0 +1,8 @@
+[
+  {
+    "srcDir": "",
+    "destDir": "",
+    "files": "**/*.js",
+    "command": "npm run lint"
+  }
+]

package.json

@@ -24,7 +24,7 @@
   },
   "repository": "Permissionless-Software-Foundation/ipfs-bch-wallet-service",
   "dependencies": {
-    "@psf/bch-js": "6.3.4",
+    "@psf/bch-js": "6.4.0",
     "axios": "0.25.0",
     "bcryptjs": "2.4.3",
     "glob": "7.1.6",

src/controllers/json-rpc/bch/index.js

@@ -71,6 +71,10 @@ class BCHRPC {
         case 'pubkey':
           await this.rateLimit.limiter(rpcData.from)
           return await this.pubKey(rpcData)
+
+        case 'utxoIsValid':
+          await this.rateLimit.limiter(rpcData.from)
+          return await this.utxoIsValid(rpcData)
       }
     } catch (err) {
       console.error('Error in BCHRPC/rpcRouter()')
@@ -612,6 +616,79 @@ class BCHRPC {
       }
     }
   }
+
+  /**
+   * @api {JSON} /bch UtxoIsValid
+   * @apiPermission public
+   * @apiName UtxoIsValid
+   * @apiGroup JSON BCH
+   * @apiDescription Verify if UTXO is valid
+   * Given a UTXO object (txid and vout), a full node is queried to verify that
+   * the UTXO still exists in the mempool (true), or if it has been spent (false).
+   *
+   *  - jsonrpc: "" - jsonrpc version
+   *  - id: "" - jsonrpc id
+   *  - result: {} - Result of the petition with the RPC information
+   *      - success: - Request status
+   *      - publickey: - Address public key
+   *
+   * @apiExample Example usage:
+   * {"jsonrpc":"2.0","id":"555","method":"bch","params":{ "endpoint": "utxoIsValid", "utxo": {"tx_hash": "17754221b29f189532d4fc2ae89fb467ad2dede30fdec4854eb2129b3ba90d7a", "tx_pos": 0}}}
+   *
+   * @apiSuccessExample {json} Success-Response:
+   *  {
+   *     "jsonrpc":"2.0",
+   *     "id":"555",
+   *     "result":{
+   *        "method":"bch",
+   *        "reciever":"QmU86vLVbUY1UhziKB6rak7GPKRA2QHWvzNm2AjEvXNsT6",
+   *        "value":{
+   *          "success": true,
+   *          "status": 200,
+   *          "endpoint": "pubkey",
+   *          "pubkey": {
+   *            "success": true,
+   *            "publicKey": "033f267fec0f7eb2b27f8c2e3052b3d03b09d36b47de4082ffb638ffb334ef0eee"
+   *     }
+   *
+   *  }
+   */
+  async utxoIsValid (rpcData) {
+    try {
+      // console.log('createUser rpcData: ', rpcData)
+
+      const utxo = rpcData.payload.params.utxo
+      // console.log('utxo: ', utxo)
+
+      const isValid = await this.bchjs.Utxo.isValid(utxo)
+
+      const retObj = {
+        success: true,
+        status: 200,
+        endpoint: 'utxoIsValid',
+        isValid
+      }
+      // retObj.status = 200
+
+      return retObj
+    } catch (err) {
+      console.error('Error in JSON RPC BCH utxoIsValid()')
+
+      // throw err
+      let error = err
+      if (err.error && typeof err.error === 'string') {
+        error = new Error(err.error)
+      }
+
+      // Return an error response
+      return {
+        success: false,
+        status: 422,
+        message: error.message,
+        endpoint: 'utxoIsValid'
+      }
+    }
+  }
 }
 
 module.exports = BCHRPC

test/integration/controllers/json-rpc/bch.integration.js

@@ -0,0 +1,97 @@
+/*
+  Integration tests for the endpoints in controllers/json-rpc/bch
+*/
+
+// Global npm libraries
+const assert = require('chai').assert
+
+// Local libraries
+const BCHController = require('../../../../src/controllers/json-rpc/bch')
+const Adapters = require('../../../../src/adapters')
+const UseCases = require('../../../../src/use-cases')
+
+describe('#BCH', () => {
+  let uut
+
+  before(async () => {
+    const adapters = new Adapters()
+    const useCases = new UseCases({ adapters })
+    // await adapters.start()
+
+    uut = new BCHController({ adapters, useCases })
+  })
+
+  describe('#utxoIsValid', () => {
+    it('should return true for valid UTXO with fullnode properties', async () => {
+      const rpcData = {
+        payload: {
+          params: {
+            utxo: {
+              txid: 'b94e1ff82eb5781f98296f0af2488ff06202f12ee92b0175963b8dba688d1b40',
+              vout: 0
+            }
+          }
+        }
+      }
+
+      const result = await uut.utxoIsValid(rpcData)
+      // console.log('result: ', result)
+
+      assert.equal(result.isValid, true)
+    })
+
+    it('should return true for valid UTXO with fulcrum properties', async () => {
+      const rpcData = {
+        payload: {
+          params: {
+            utxo: {
+              tx_hash: 'b94e1ff82eb5781f98296f0af2488ff06202f12ee92b0175963b8dba688d1b40',
+              tx_pos: 0
+            }
+          }
+        }
+      }
+
+      const result = await uut.utxoIsValid(rpcData)
+      // console.log('result: ', result)
+
+      assert.equal(result.isValid, true)
+    })
+
+    it('should return false for valid UTXO with fullnode properties', async () => {
+      const rpcData = {
+        payload: {
+          params: {
+            utxo: {
+              txid: '17754221b29f189532d4fc2ae89fb467ad2dede30fdec4854eb2129b3ba90d7a',
+              vout: 0
+            }
+          }
+        }
+      }
+
+      const result = await uut.utxoIsValid(rpcData)
+      // console.log('result: ', result)
+
+      assert.equal(result.isValid, false)
+    })
+
+    it('should return false for valid UTXO with fulcrum properties', async () => {
+      const rpcData = {
+        payload: {
+          params: {
+            utxo: {
+              tx_hash: '17754221b29f189532d4fc2ae89fb467ad2dede30fdec4854eb2129b3ba90d7a',
+              tx_pos: 0
+            }
+          }
+        }
+      }
+
+      const result = await uut.utxoIsValid(rpcData)
+      // console.log('result: ', result
+
+      assert.equal(result.isValid, false)
+    })
+  })
+})

test/integration/use-cases/bch/index-bch.use-cases.integration.js

@@ -14,7 +14,7 @@ describe('#BCH', () => {
 
   before(async () => {
     const adapters = new Adapters()
-    await adapters.start()
+    // await adapters.start()
 
     uut = new BCHUseCases({ adapters })
   })

test/unit/controllers/json-rpc/bch.json-rpc.controller.unit.js

@@ -488,6 +488,7 @@ describe('#BCHRPC', () => {
       assert.equal(response.message, 'No transaction history.')
       assert.equal(response.endpoint, 'pubkey')
     })
+
     it('should return an error for invalid input', async () => {
       // Force an error
       sandbox
@@ -513,4 +514,80 @@ describe('#BCHRPC', () => {
       assert.equal(response.endpoint, 'pubkey')
     })
   })
+
+  describe('#utxoIsValid', () => {
+    it('should return false if UTXO.isValid() returns false', async () => {
+      // Mock dependencies
+      sandbox
+        .stub(uut.bchjs.Utxo, 'isValid')
+        .resolves(false)
+
+      const rpcData = {
+        payload: {
+          params: {
+            utxo: {
+              txid: 'b94e1ff82eb5781f98296f0af2488ff06202f12ee92b0175963b8dba688d1b40',
+              vout: 0
+            }
+          }
+        }
+      }
+
+      const result = await uut.utxoIsValid(rpcData)
+      // console.log('result: ', result)
+
+      assert.equal(result.isValid, false)
+      assert.equal(result.success, true)
+    })
+
+    it('should return true if UTXO.isValid() returns true', async () => {
+      // Mock dependencies
+      sandbox
+        .stub(uut.bchjs.Utxo, 'isValid')
+        .resolves(true)
+
+      const rpcData = {
+        payload: {
+          params: {
+            utxo: {
+              txid: 'b94e1ff82eb5781f98296f0af2488ff06202f12ee92b0175963b8dba688d1b40',
+              vout: 0
+            }
+          }
+        }
+      }
+
+      const result = await uut.utxoIsValid(rpcData)
+      // console.log('result: ', result)
+
+      assert.equal(result.isValid, true)
+      assert.equal(result.success, true)
+    })
+
+    it('should catch and return errors', async () => {
+      // Mock dependencies
+      sandbox
+        .stub(uut.bchjs.Utxo, 'isValid')
+        .rejects(new Error('test error'))
+
+      const rpcData = {
+        payload: {
+          params: {
+            utxo: {
+              txid: 'b94e1ff82eb5781f98296f0af2488ff06202f12ee92b0175963b8dba688d1b40',
+              vout: 0
+            }
+          }
+        }
+      }
+
+      const result = await uut.utxoIsValid(rpcData)
+      // console.log('result: ', result)
+
+      assert.equal(result.success, false)
+      assert.equal(result.status, 422)
+      assert.equal(result.message, 'test error')
+      assert.equal(result.endpoint, 'utxoIsValid')
+    })
+  })
 })

test/unit/mocks/adapters/index.js

@@ -60,7 +60,8 @@ const bchjs = {
     sortAllTxs: () => {}
   },
   Utxo: {
-    get: () => {}
+    get: () => {},
+    isValid: () => true
   },
   Transaction: {
     get: () => {}