OmniAuth is the leading library for multi-provider authentication in Rails applications, standardising the process of integrating third-party logins such as Google, GitHub, Facebook, and any service supporting OAuth.
It introduces middleware that handles provider-specific flows and callback endpoints, letting you focus on associating provider accounts with users.
Installation is simple: add the gem, configure the provider strategy in an initializer, and set up callback routes in your application.
OmniAuth supports Rails 6, 7 and 8, and has a large ecosystem of provider-specific gems. Its key strengths are its flexibility, large provider coverage, and straightforward integration into existing authentication frameworks like Devise. Its weaknesses are the need to manage security around callback handling carefully and to keep provider gems updated as APIs change.
It introduces middleware that handles provider-specific flows and callback endpoints, letting you focus on associating provider accounts with users.
Installation is simple: add the gem, configure the provider strategy in an initializer, and set up callback routes in your application.
OmniAuth supports Rails 6, 7 and 8, and has a large ecosystem of provider-specific gems. Its key strengths are its flexibility, large provider coverage, and straightforward integration into existing authentication frameworks like Devise. Its weaknesses are the need to manage security around callback handling carefully and to keep provider gems updated as APIs change.