Doorkeeper

Overview:

Doorkeeper is a gem (Rails engine) designed to easily introduce OAuth 2 provider functionality to Ruby on Rails or Grape applications. It supports various OAuth 2.0 features and provides a range of extensions for customization.

Features:

• OAuth 2.0 Authorization Framework
• Authorization Code Flow
• Access Token Scopes
• Refresh token
• Implicit grant
• Resource Owner Password Credentials
• Client Credentials
• OAuth 2.0 Token Revocation
• OAuth 2.0 Token Introspection
• OAuth 2.0 Threat Model and Security Considerations
• OAuth 2.0 for Native Apps
• Proof Key for Code Exchange by OAuth Public Clients

Summary:

Doorkeeper is a versatile gem that simplifies integrating OAuth 2 provider functionality into Ruby on Rails or Grape applications. With a range of supported features like various OAuth 2.0 flows, token management, security considerations, and customizable extensions, Doorkeeper provides a comprehensive solution for implementing OAuth 2 in your application. It offers detailed documentation, installation guides for different frameworks, and example applications showcasing its functionality for a seamless integration process.