Version 4 supported
This version of Silverstripe CMS is still supported though will not receive any additional features. Go to documentation for the most recent stable version.

Extending the schema

In this section of the documentation, we'll look at some advanced features for developers who want to extend their GraphQL server using custom models, middleware, and new operations.

You are viewing docs for silverstripe/graphql 4.x. If you are using 3.x, documentation can be found in the GitHub repository
Adding a custom model
Add a new class-backed type beyond DataObject
Adding a custom operation
Add a new operation for model types
Adding middleware
Add middleware to to extend query execution
The global schema
How to push modifications to every schema in the project