17. Create a GraphQL API (Points: 10)

Create a GraphQL API for the service. This GraphQL API will be exposed on the route POST /api/graphql.

To satisfy this challenge, implement at least one GraphQL query and one GraphQL mutation. Be sure to reuse the existing service code within the service/src/services folder to integrate with your GraphQL implementation.

If you’re not sure where to get started, check out this guide.

Acceptance Criteria:

1. A GraphQL API is set up and accessible at the specified route.
2. At least one query and one mutation are implemented successfully.
3. The participant reuses existing service code appropriately to handle the GraphQL operations.