Rails3 engine that adds OAuth2 Provider support to any application built with Devise authentication

Leveraging Doorkeeper as single-sign-on OAuth server. To provide true single-sign-OUT, every request on an OAuth client app is verified with the SSO server.

OmniAuth Oauth2 strategy for fitbit.com - https://dev.fitbit.com/docs/oauth2/

Using OAuth2 to authenticate wechat user in web application.

A TikTok Marketing API OAuth2 strategy for OmniAuth. This allows you to login with TikTok in your ruby app.

Using OAuth2 to authenticate wechat user when web resources being viewed within wechat(weixin) client.

This Faraday middleware gem adds OAuth2 token handling with token refresh

A Yahoo OAuth2 strategy for OmniAuth.

Implementing OAuth with Keycloak in Ruby

Vkontakte OAuth2 Strategy for OmniAuth

OmniAuth OAuth2 strategy for Fortnox

Utility functions for dealing with OAuth2 and Jive

FreshBooks OAuth2 strategy for OmniAuth using the new FreshBooks API

Rails gem that allows you to easily interact with an Oauth secured rest API with the ActiveResource model.

The OmniAuth strategy for authenticating users using Barong (open-source OAuth2 and KyC server powered by Doorkeeper).

Leveraging Doorkeeper as single-sign-on OAuth server. To provide true single-sign-OUT, every request on an OAuth client app is verified with the SSO server.

Devise OAuth2 Facebook extension

MindMeister Oauth2 strategy for Omniauth. This allows you to authenticate to MindMeister from your ruby app.

A Bungie OAuth2 strategy for Omniauth

Devise OAuth2 Facebook extension for rails 3 and mongoid