Credentials are not getting passed to authentication stategy - node.js

Question

I'm new to node express and passport so I'm not sure what I'm missing. I'm trying to use a custom callback as all I want is a json response from my registration strategy. Currently I keep getting the following error "Missing credentials". I've been at it for a while now and I'm stuck.
Here is my controller:
app.post('/services/authentication/registration', function(req, res, next) {
console.log('before authentication')
passport.authenticate('local-registration', function(err, user, info) {
console.log('authentication callback');
if (err) { return res.send({'status':'err','message':err.message});}
if (!user) { return res.send({'status':'err','message':info.message});}
if (user!=false) { return res.send({'message':'registration successful'});}
})(req, res, next);
},
function(err, req, res, next) {
return res.send({'status':'err','message':err.message});
});
And my passport strategy:
passport.use('local-registration', new LocalStrategy({
// by default, local strategy uses username and password, we will override with email
usernameField : 'email',
passwordField : 'password',
passReqToCallback : true
},
function(req, email, password, done) {
console.log('credentials passed to passport' + email + '' + password)
// asynchronous
// User.findOne wont fire unless data is sent back
process.nextTick(function() {
// find a user whose email is the same as the forms email
// we are checking to see if the user trying to login already exists
User.findOne({ 'local.email' : email }, function(err, user) {
// if there are any errors, return the error
if (err)
return done(err);
// check to see if theres already a user with that email
if (user) {
return done(null, false, {message: 'User already exists'});
} else {
// if there is no user with that email
// create the user
var newUser = new User();
// set the user's local credentials
newUser.local.email = email;
newUser.local.password = newUser.generateHash(password);
// save the user
newUser.save(function(err) {
if (err)
throw err;
return done(null, newUser);
});
}
});
});
}));

Answer 1

I dont think you should send "req" as a parameter to the authentication function. take a look at this example from the passport docs:
passport.use(new LocalStrategy(
function(username, password, done) {
User.findOne({ username: username }, function (err, user) {
if (err) { return done(err); }
if (!user) {
return done(null, false, { message: 'Incorrect username.' });
}
if (!user.validPassword(password)) {
return done(null, false, { message: 'Incorrect password.' });
}
return done(null, user);
});
}
));