Passport authenticate calls request login

[vijayst]

In the starter package, I found the below code:

function login({ email, password, req }) {
  return new Promise((resolve, reject) => {
    passport.authenticate('local', (err, user) => {
      if (!user) { reject('Invalid credentials.') }

      req.login(user, () => resolve(user));
    })({ body: { email, password } });
  });
}

The passport documentation suggests that calling authenticate on passport automatically calls login. So, I believe there is no need to call login again.

Note: passport.authenticate() middleware invokes req.login() automatically. This function is primarily used when users sign up, during which req.login() can be invoked to automatically log in the newly registered user.