> For the complete documentation index, see [llms.txt](https://ghiscoding.gitbook.io/slickgrid-universal/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ghiscoding.gitbook.io/slickgrid-universal/backend-services.md).

# Backend Services

- [Custom Backend Service](https://ghiscoding.gitbook.io/slickgrid-universal/backend-services/custom-backend-service.md)
- [OData](https://ghiscoding.gitbook.io/slickgrid-universal/backend-services/odata.md)
- [GraphQL](https://ghiscoding.gitbook.io/slickgrid-universal/backend-services/graphql.md)
- [JSON Result Structure](https://ghiscoding.gitbook.io/slickgrid-universal/backend-services/graphql/graphql-json-result.md)
- [Filtering Schema](https://ghiscoding.gitbook.io/slickgrid-universal/backend-services/graphql/graphql-filtering.md)
- [Pagination Schema](https://ghiscoding.gitbook.io/slickgrid-universal/backend-services/graphql/graphql-pagination.md)
- [Sorting Schema](https://ghiscoding.gitbook.io/slickgrid-universal/backend-services/graphql/graphql-sorting.md)
- [SQL](https://ghiscoding.gitbook.io/slickgrid-universal/backend-services/sql-backend.md)