Five Ruby Gems for Authentication and Authorization

Learn about five different Ruby gems used for authentication and authorization and when to use them.
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:writing_hand:t2: Brought to you by @carlastabile

There is also the omniauth-identity gem which allows you to implement authentication where users can authenticate via third party integrations, or have a site-login with username and password on your site without any third party.

Full disclosure: I am the maintainer of omniauth-identity