web-graphql

To prevent N+1 queries in a GraphQL API with Prisma, implement DataLoader to batch relational data requests. This approach groups multiple individual database queries into a single batched request, solving the N+1 problem across your relational data efficiently.

The best way to structure a scalable Apollo Server and Express backend is using a schema-first design with thin resolvers. Delegate business logic to a modular service layer to maintain a clear separation of concerns between the API surface and data access.

Set up cursor-based pagination in a GraphQL schema by defining connection types in your schema-first design. Your thin resolvers delegate the actual data slicing to your service layer and Prisma data access to return structured paginated results.

Yes, Apollo Server works seamlessly with Prisma to create type-safe schemas. By combining schema-first design with Prisma's generated client, you can establish a typed context that enforces type safety from your GraphQL resolvers down to your database access layer.

Handle structured error payloads in an Express and GraphQL API by formatting errors within Apollo Server. This ensures your API surface returns consistent structured error payloads to clients while keeping the error handling logic distinct from your resolvers and data access layer.

Use a service layer instead of direct database calls in GraphQL resolvers when building scalable product backends. Thin resolvers that delegate to a modular service layer provide a clear separation of concerns between your API surface and data access, preventing bloated resolver logic.