node-bitcoind

node-bitcoind is a simple wrapper for bitcoin daemon client's JSON-RPC API 0.18.0. Forked from node-coind.

Install

npm install node-bitcoind

Examples

Create client

var bitcoind = require('node-bitcoind');
var client = new bitcoind.Client({
  host: 'localhost',
  port: 15715,
  user: 'username',
  pass: 'password'
});

Get balance across all accounts with minimum confirmations of 6

client.getBalance('*', 6, function(err, balance) {
  if (err) return console.log(err);
  console.log('Balance:', balance);
});

Getting the balance directly using cmd

client.cmd('getbalance', '*', 6, function(err, balance){
  if (err) return console.log(err);
  console.log('Balance:', balance);
});

Batch multiple RPC calls into single HTTP request

var batch = [];
for (var i = 0; i < 10; ++i) {
  batch.push({
    method: 'getnewaddress',
    params: ['myaccount']
  });
}
client.cmd(batch, function(err, address) {
  if (err) return console.log(err);
  console.log('Address:', address);
});

SSL

See Enabling SSL on original client.

If you're using this to connect to a bitcoind across a network it is highly recommended to enable ssl, otherwise an attacker may intercept your RPC credentials resulting in theft of your coins.

When enabling ssl by setting the configuration option to true, the sslStrict option (verifies the server certificate) will also be enabled by default. It is highly recommended to specify the sslCa as well, even if your daemon has a certificate signed by an actual CA, to ensure you are connecting to your own daemon.

var client = new bitcoind.Client({
  host: 'localhost',
  port: 15715,
  user: 'username',
  pass: 'password',
  ssl: true,
  sslStrict: true,
  sslCa: fs.readFileSync(__dirname + '/server.cert')
});

If your using a self signed certificate generated with something like

openssl x509 -req -days 365 -in server.cert -signkey server.key -out server.cert

then sslStrict should be set to false because by defult node wont work with untrusted certificates.