Using the 1Password CLI in NodeJS

op.js

const runOp = args => {
  const cmd = 'op';
  const proc = spawn(cmd, args, {
    stdio: [
      'inherit',
      'pipe',
      'inherit'
    ]
  });

  return new Promise((resolve, reject) => {
    let stdout = '';

    proc.stdout.on('data', data => (stdout += data.toString()));

    proc.on('close', code => code ? reject(new Error(`1Password CLI exited with error status ${code}`)) : resolve(stdout));
  }).then(stdout => JSON.parse(stdout));
}

runOp([ 'get', 'item', 'my-secret-key' ]).then(item => {
  const { password } = item.details;
  // Use secret password here
});