Return Resolve Error In Node Function

Why wont usernametoid function return the acual id? cause im trying to send the result of the userdata as the return. In this case, i want to only send the userdata`s _id attribute

Solution 1:

Because you are not passing correctly the fetched user to the query.exec.

You need to do:

var Users  = require('../models/users-model.js');

function usernametoid(id) {
    return new Promise( function (resolve, reject) {
        Users.findOne({ username : id }).then( function(user){
          //If you use lodash you can do _.isNull(user)
          if(user == null){
            return reject({error : 'User not found'});
          }

          user.exec(function(userdata, error) {
              if(userdata){
                return resolve(userdata);
              } 
              if(error){
                 return reject({error : 'Error while executing query'});
              }
           });
        });
    });
}

I don't really get why you are importing Users Model like that. I do not think Node will be able to fetch it like that.

And, you should require mongoose in your server.js

To catch the rejection you need the following code:

UserFactory.userNameToId(id).then( function(response){
  if(response.error){
    console.log('error '+response.error);
  }
  if(response){
    console.log('Got response '+response);
  }
});