31 lines
1.3 KiB
JavaScript
31 lines
1.3 KiB
JavaScript
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// The one Electrum call the deposit gate needs: a verbose transaction.
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import tls from 'node:tls';
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import net from 'node:net';
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export function electrumCall({ host, port, tls: useTls = true, timeoutMs = 15_000 }, method, params) {
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return new Promise((resolve, reject) => {
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const sock = useTls ? tls.connect({ host, port, servername: host }) : net.connect({ host, port });
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let buf = '';
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const timer = setTimeout(() => { sock.destroy(); reject(new Error('Electrum server did not answer')); }, timeoutMs);
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const done = (err, val) => { clearTimeout(timer); sock.end(); if (err) reject(err); else resolve(val); };
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sock.setEncoding('utf8');
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sock.on('error', (e) => done(e));
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sock.write(JSON.stringify({ jsonrpc: '2.0', id: 0, method: 'server.version', params: ['pithos-hosted', '1.4'] }) + '\n');
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sock.write(JSON.stringify({ jsonrpc: '2.0', id: 1, method, params }) + '\n');
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sock.on('data', (d) => {
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buf += d;
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let i;
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while ((i = buf.indexOf('\n')) >= 0) {
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const line = buf.slice(0, i);
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buf = buf.slice(i + 1);
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let msg;
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try { msg = JSON.parse(line); } catch { continue; }
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if (msg.id !== 1) continue;
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if (msg.error) return done(new Error(msg.error.message || 'Electrum error'));
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return done(null, msg.result);
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}
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});
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});
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}
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