electrum-client

const ElectrumCli = require('electrum-client'); const main = async () => { // Connect to an Electrum server (e.g., btc.smsys.me on port 995 with TLS) // Note: Use a reliable and trusted Electrum server. const ecl = new ElectrumCli(995, 'btc.smsys.me', 'tls'); // 'tcp' or 'tls' try { await ecl.connect(); // Establish connection console.log('Connected to Electrum server.'); // Subscribe to blockchain header updates ecl.subscribe.on('blockchain.headers.subscribe', (header) => { console.log('New block header received:', header); }); // Make a JSON-RPC call to get the server version const ver = await ecl.server_version("2.7.11", "1.0"); console.log('Server version:', ver); // Example: Get balance for a script hash (replace with a real script hash) // Note: You would typically derive this from a Bitcoin address. // const scriptHash = '716decbe1660861c3d93906cb1d98ee68b154fd4d23aed9783859c1271b52a9c'; // const balance = await ecl.blockchainScripthash_getBalance(scriptHash); // console.log('Script hash balance:', balance); // Keep the connection alive for a few seconds to receive subscriptions await new Promise(resolve => setTimeout(resolve, 10000)); } catch (e) { console.error('Electrum client error:', e); } finally { await ecl.close(); // Disconnect console.log('Disconnected from Electrum server.'); } }; main();