> 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/orms/mongodb.md).

# MongoDB

See [doorkeeper-mongodb project](https://github.com/doorkeeper-gem/doorkeeper-mongodb) for Mongoid and MongoMapper support. Follow along the implementation in that repository to extend doorkeeper with other ORMs.