Push user.id to another Controller

I’m not using any gem, I did by myself the login method. Could you tell me any gem?

Thanks.

I'm not using any gem, I did by myself the login method. Could you tell me
any gem?

Read the reply by Robert Walker in this thread on 16th April. Also
google can be very helpful. You are more likely to get help here if
you give the impression of having tried to answer questions yourself
before asking us to spend our time trying to help.

Colin