bitcoin rpc

.env.example

@@ -0,0 +1,5 @@
+BITCOIN_RPC_URL=http://192.168.1.100
+BITCOIN_RPC_USER=
+BITCOIN_RPC_PASSWORD=
+BITCOIN_RPC_PORT=8332
+BITCOIN_RPC_TIMEOUT=10000

.gitignore

@@ -26,6 +26,8 @@ lerna-debug.log*
 *.launch
 .settings/
 *.sublime-workspace
+.env
+settings.json
 
 # IDE - VSCode
 .vscode/*

.vscode/settings.json

@@ -2,6 +2,7 @@
     "cSpell.words": [
         "coinb",
         "Fastify",
+        "getblocktemplate",
         "merkle",
         "nbits",
         "ntime",

package-lock.json

@@ -10,6 +10,7 @@
       "license": "UNLICENSED",
       "dependencies": {
         "@nestjs/common": "^9.0.0",
+        "@nestjs/config": "^2.3.2",
         "@nestjs/core": "^9.0.0",
         "@nestjs/platform-fastify": "^9.4.2",
         "class-transformer": "^0.5.1",
@@ -1553,6 +1554,30 @@
         }
       }
     },
+    "node_modules/@nestjs/config": {
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/@nestjs/config/-/config-2.3.2.tgz",
+      "integrity": "sha512-VtGV8PBpxzMzz68kdxTWqPm9v7SYCSZXQ0tC72AMNnjdmU+CVjUSLpEpdnm0XcWHxE1nV6wSI3HZxsATIV4ZxA==",
+      "dependencies": {
+        "dotenv": "16.0.3",
+        "dotenv-expand": "10.0.0",
+        "lodash": "4.17.21",
+        "uuid": "9.0.0"
+      },
+      "peerDependencies": {
+        "@nestjs/common": "^7.0.0 || ^8.0.0 || ^9.0.0",
+        "reflect-metadata": "^0.1.13",
+        "rxjs": "^6.0.0 || ^7.2.0"
+      }
+    },
+    "node_modules/@nestjs/config/node_modules/uuid": {
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-9.0.0.tgz",
+      "integrity": "sha512-MXcSTerfPa4uqyzStbRoTgt5XIe3x5+42+q1sDuy3R5MDk66URdLMOZe5aPX/SQd+kuYAh0FdP/pO28IkQyTeg==",
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    },
     "node_modules/@nestjs/core": {
       "version": "9.4.2",
       "resolved": "https://registry.npmjs.org/@nestjs/core/-/core-9.4.2.tgz",
@@ -3449,6 +3474,22 @@
         "node": ">=6.0.0"
       }
     },
+    "node_modules/dotenv": {
+      "version": "16.0.3",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.0.3.tgz",
+      "integrity": "sha512-7GO6HghkA5fYG9TYnNxi14/7K9f5occMlp3zXAuSxn7CKCxt9xbNWG7yF8hTCSUchlfWSe3uLmlPfigevRItzQ==",
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/dotenv-expand": {
+      "version": "10.0.0",
+      "resolved": "https://registry.npmjs.org/dotenv-expand/-/dotenv-expand-10.0.0.tgz",
+      "integrity": "sha512-GopVGCpVS1UKH75VKHGuQFqS1Gusej0z4FyQkPdwjil2gNIv+LNsqBlboOzpJFZKVT95GkCyWJbBSdFEFUWI2A==",
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/ecc-jsbn": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz",
@@ -9531,6 +9572,24 @@
         "uid": "2.0.2"
       }
     },
+    "@nestjs/config": {
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/@nestjs/config/-/config-2.3.2.tgz",
+      "integrity": "sha512-VtGV8PBpxzMzz68kdxTWqPm9v7SYCSZXQ0tC72AMNnjdmU+CVjUSLpEpdnm0XcWHxE1nV6wSI3HZxsATIV4ZxA==",
+      "requires": {
+        "dotenv": "16.0.3",
+        "dotenv-expand": "10.0.0",
+        "lodash": "4.17.21",
+        "uuid": "9.0.0"
+      },
+      "dependencies": {
+        "uuid": {
+          "version": "9.0.0",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-9.0.0.tgz",
+          "integrity": "sha512-MXcSTerfPa4uqyzStbRoTgt5XIe3x5+42+q1sDuy3R5MDk66URdLMOZe5aPX/SQd+kuYAh0FdP/pO28IkQyTeg=="
+        }
+      }
+    },
     "@nestjs/core": {
       "version": "9.4.2",
       "resolved": "https://registry.npmjs.org/@nestjs/core/-/core-9.4.2.tgz",
@@ -10968,6 +11027,16 @@
         "esutils": "^2.0.2"
       }
     },
+    "dotenv": {
+      "version": "16.0.3",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.0.3.tgz",
+      "integrity": "sha512-7GO6HghkA5fYG9TYnNxi14/7K9f5occMlp3zXAuSxn7CKCxt9xbNWG7yF8hTCSUchlfWSe3uLmlPfigevRItzQ=="
+    },
+    "dotenv-expand": {
+      "version": "10.0.0",
+      "resolved": "https://registry.npmjs.org/dotenv-expand/-/dotenv-expand-10.0.0.tgz",
+      "integrity": "sha512-GopVGCpVS1UKH75VKHGuQFqS1Gusej0z4FyQkPdwjil2gNIv+LNsqBlboOzpJFZKVT95GkCyWJbBSdFEFUWI2A=="
+    },
     "ecc-jsbn": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz",

package.json

@@ -21,6 +21,7 @@
   },
   "dependencies": {
     "@nestjs/common": "^9.0.0",
+    "@nestjs/config": "^2.3.2",
     "@nestjs/core": "^9.0.0",
     "@nestjs/platform-fastify": "^9.4.2",
     "class-transformer": "^0.5.1",

src/app.module.ts

@@ -1,17 +1,23 @@
 import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
 
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
+import { BitcoinRpcService } from './bitcoin-rpc.service';
 import { BitcoinStratumProvider } from './bitcoin-stratum.provider';
 
 
 
 @Module({
     imports: [
-
+        ConfigModule
     ],
     controllers: [AppController],
-    providers: [AppService, BitcoinStratumProvider],
+    providers: [
+        AppService,
+        BitcoinStratumProvider,
+        BitcoinRpcService
+    ],
 })
 export class AppModule {
     constructor(private readonly bitcoinStratumProvider: BitcoinStratumProvider) {

src/bitcoin-rpc.service.ts

@@ -0,0 +1,33 @@
+import { Injectable } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import { RPCClient } from 'rpc-bitcoin';
+
+
+@Injectable()
+export class BitcoinRpcService {
+
+    private client: RPCClient;
+
+    constructor(configService: ConfigService) {
+        const url = configService.get('BITCOIN_RPC_URL');
+        const user = configService.get('BITCOIN_RPC_USER');
+        const pass = configService.get('BITCOIN_RPC_PASSWORD');
+        const port = parseInt(configService.get('BITCOIN_RPC_PORT'));
+        const timeout = parseInt(configService.get('BITCOIN_RPC_TIMEOUT'));
+        this.client = new RPCClient({ url, port, timeout, user, pass });
+        console.log('Bitcoin RPC connected');
+    }
+
+
+    public async getBlockTemplate() {
+
+        const result = await this.client.getblocktemplate({
+            template_request: {
+                rules: ['segwit'],
+                mode: 'template',
+                capabilities: ['serverlist', 'proposal']
+            }
+        });
+    }
+}
+