What gems do I have to use to let users sign in with their Twitter account if I don't want to create Users Table?

Question

Today, there are few authentication gems such as Twitter ( https://github.com/sferik/sign-in-with-twitter )

Supposing that I have posts table, which has a field named "username". Then I want to insert the value of usernames of their twitter accounts to it.

How can I design the system structure? What gems do I have to use to realize this procedure below?

1. A person sign in with his twitter account ID "test_john".

2. After confirmed his sign in to Twitter, my system receive callback then now he has a permission to post to my web service. Let's suppose that he posted a comment "hello".

3. New comment record will be created, and these values will be inserted to each

   comments.username <= test_john
   comments.body <= hello

Can I do this without using Devise or OmniAuth or something like these authentication gems? or Do I have to use them anyway if I'm doing this?

What gems do I need at least?

Answer 1

它的此处称为Omniauth是链接https://github.com/intridea/omniauth