GraphQL
Example
GraphQL Example
WHAT YOU'LL LEARN
- How to add your own GraphQL schema?
- How to define GraphQL types, inputs, and mutations?
- How to add resolvers with dependency injection?
- How to handle errors in GraphQL responses?
- How to extend existing GraphQL types?
Overview
System provides a powerful GraphQL API framework that allows you to extend and customize the GraphQL schema. By implementing the GraphQLSchemaFactory interface, you can add custom types, queries, and mutations to your application.
The example demonstrates a complete implementation of a custom GraphQL query that lists CMS entries from any content model. It shows how to:
- Define GraphQL type definitions using
addTypeDefs()with custom types and response structures - Extend existing GraphQL types (like
Query) with your custom operations - Add resolvers using
addResolver()with dependency injection support - Handle both success and error responses using the Result pattern
This pattern follow clean architecture principles, keeping the GraphQL layer thin and delegating business logic to dedicated use cases. The resolver functions receive injected dependencies and handle the communication between the GraphQL API and your application services.
Query Code Example
Mutation Code Example