How can we create a user with Firebase Auth in node.js?

Question

I'm trying to create user account using Firebase auth in nodejs. It doesn't work and I don't know why. Here's the code and the error generated by nodejs:

var config = {.......}; // i can't share the config

var app = firebase.initializeApp(config);

var db = app.database();
var auth = app.auth();

auth.createUserWithUsernameAndPassword("[email protected]", "@NewPassWord").then(
    function(user){ console.log(user);},
    function(error){ console.error(error);}
);

Error generate by NodeJS:

TypeError: Object [object Object] has no method 'createUserWithUsernameAndPassword'
    at Object.<anonymous> (/home/antonio/Projects/firebase/app.js:20:6)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at startup (node.js:119:16)
    at node.js:906:3

Answer 1

I finally got it working in Node.js. Is your app an instance of firebase-admin by any chance, as opposed to firebase?

In my express app I initialise firebase in the main app.js like so (pretty standard fare):

var firebase = require("firebase");

firebase.initializeApp
({
  apiKey: "xxx",
  authDomain: "xxx",
  databaseURL: "xxx",
  storageBucket: "xxx",
  messagingSenderId: "xxx"
});

Then in the route responsible for creating users I do this:

var firebase = require("firebase");

router.post('/register', function(req, res, next)
{
  var email = req.body.email;
  var password = req.body.password;

  firebase.auth().createUserWithEmailAndPassword
  (
    email,
    password
  )
  .then(function(userRecord)
  {
    res.location('/user/' + userRecord.uid);
    res.status(201).end();
  })
  .catch(function(error)
  {
    res.write
    ({
      code: error.code
    });
    res.status(401).end();
  });
});