How to login a newly registered user?

Question

Node.js

Hey!
I use koa , koa-generic-session , koa-passport , passport-local .
The user enters the registration form, enters data, submits. The node registers the user in the database (login, password hash, salt, ...). Further throws on the login form.
How to make sure that after registering a user in the database, he does not need to go to the login form and register his session, but so that the user session is immediately registered when the user is saved to the database?
update: You can, of course, take a koa-request and send the completed login form to yourself, but surely you can do it without crutches?

Answer 1

As usual, everything is simple:

const passport = require('koa-passport');
...
yield passport.authenticate('local', {
    successRedirect: '/',
    failureRedirect: '/'
});
...

BUT!
This only works because the fields in the registration form have exactly the same name and id as in the login form, and at the time of calling authenticate , this.request.body contains data about these fields passed from the registration form, so the authentication is successful.