add electrum wallet rpc client

backend/src/modules/bitcoinWallet/services/ElectrumWalletRpcConnectionService.ts

@@ -0,0 +1,20 @@
+import { Injectable, Logger, OnModuleInit } from '@nestjs/common';
+import { getErrorMessage } from '../../../utils/getErrorMessage';
+import { ElectrumWalletRpcClient } from './ElectrumWalletRpcClient';
+
+@Injectable()
+export class ElectrumWalletRpcConnectionService implements OnModuleInit {
+    private readonly logger = new Logger(ElectrumWalletRpcConnectionService.name);
+
+    constructor(private readonly walletRpcClient: ElectrumWalletRpcClient) {}
+
+    async onModuleInit(): Promise<void> {
+        try {
+            const version = await this.walletRpcClient.getVersion();
+
+            this.logger.log(`Connected to electrum-daemon (version ${version})`);
+        } catch (error) {
+            this.logger.error(`Failed to reach electrum-daemon at startup: ${getErrorMessage(error)}`);
+        }
+    }
+}