Rejecting promises

I am getting empty error messages from the Requester:

responder

authService.on('getAdminToken', req => {
  console.log('getAdminToken');
  const adminToken = {
    role: 'admin'
  };
  const options = {
    audience: 'http://domain.com/audience',
    expiresIn: '6 month'
  }
  return new Promise((resolve, reject) => {
    const jwt = sign(adminToken, config.jwtSecret, options);
    if(!jwt) reject(new Error('failed to sign token'));
    resolve(jwt);
  });
});

requester

requester.send({ type: 'getAdminToken' })
  .then((token) => {
    winston.info(token);
  })
  .catch(e => winston.error(e));

output

{
  "level": "error",
  "message": ""
}

I can’t see the problem. What did I get wrong with cote?

It also sends the empty message when I do:

authService.on('getAdminToken', req => {
  return new Promise((resolve, reject) => {
    reject(new Error('test error message'));
  });
});

[robophil]

This seems much easier

JSON.stringify(err, Object.getOwnPropertyNames(err))

[dashersw]

No, cote doesn’t enforce any decision on your objects and your style. It just turns whatever you give to it into JSON, and it’s the user’s responsibility to make sure any object passed in can be serialized into JSON. cote is a tool with which you can implement any structure you wish, and in my projects in production, I use a custom Error JSON serializer for this.