> For the complete documentation index, see [llms.txt](https://doorkeeper.gitbook.io/guides/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doorkeeper.gitbook.io/guides/ruby-on-rails.md).

# Ruby on Rails

- [Getting Started](https://doorkeeper.gitbook.io/guides/ruby-on-rails/getting-started.md)
- [Routes](https://doorkeeper.gitbook.io/guides/ruby-on-rails/routes.md)
- [Configuration](https://doorkeeper.gitbook.io/guides/ruby-on-rails/configuration.md)
- [Scopes](https://doorkeeper.gitbook.io/guides/ruby-on-rails/scopes.md)
- [Securing the API](https://doorkeeper.gitbook.io/guides/ruby-on-rails/protecting-your-resources.md)
- [API Mode](https://doorkeeper.gitbook.io/guides/ruby-on-rails/api-mode.md)
- [PKCE Flow](https://doorkeeper.gitbook.io/guides/ruby-on-rails/pkce-flow.md)
- [Polymorphic Resource Owner](https://doorkeeper.gitbook.io/guides/ruby-on-rails/polymorphic-resource-owner.md)