Question 1

How do I avoid N+1 query problems in graphql-go?

Accepted Answer

Use the built-in field selection inspection helpers like graphql.SelectedFieldNames(ctx) to see requested fields and prefetch data, optimizing database queries and reducing round trips as documented.

Question 2

graphql-go vs gqlgen: which should I use for my Go project?

Accepted Answer

graphql-go is schema-first and minimal, ideal for clean Go code; gqlgen is code-first and generates types. Choose based on preference for schema design approach and tooling integration.

Question 3

How to implement custom errors with extensions in graphql-go?

Accepted Answer

Implement the ResolverError interface with an Extensions method to add custom fields to GraphQL errors, as shown in the error customization example with droidNotFoundError.

Question 4

Does graphql-go support GraphQL federation or advanced features?

Accepted Answer

It focuses on core GraphQL spec compliance; federation isn't mentioned, so you may need additional tools or custom implementation for advanced features like @defer or schema stitching.

Question 5

How to set up OpenTelemetry tracing with graphql-go?

Accepted Answer

Use the Tracer schema option with otelgraphql.DefaultTracer() or pass a custom trace.Tracer instance, as detailed in the tracing section with examples for OpenTelemetry integration.

Question 6

What's the best way to structure resolvers for large schemas?

Accepted Answer

Use separate resolvers for queries, mutations, and subscriptions via the Query(), Mutation(), and Subscription() methods introduced in v1.6.0 to avoid name collisions and improve organization.

graphql-go

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