GraphQL / Intermediate: policy, sources and clients

GraphQL β€” Intermediate: policy, sources and clients

Preserve access, ordering, identity and compatibility across application boundaries.

6 lessons Β· No account required

What you will learn

  • Design scoped resolvers, cursors and ordered batches.
  • Verify client reconciliation and schema evolution with focused tests.

  1. Resolvers, request context and authorization

    Adapt domain services through resolvers while keeping identity and object policy consistent across graph paths.

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  2. Cursor pagination and stable ordering

    Design bounded lists with deterministic order, explicit cursor scope and meaningful continuation metadata.

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  3. Batching, loaders and the N+1 problem

    Reduce repeated source work while preserving request isolation, key order and missing-record semantics.

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  4. Client identity, caching and reconciliation

    Connect normalized client records to stable object identity and distinguish entity updates from list membership.

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  5. Schema evolution, deprecation and compatibility

    Evaluate changes against deployed operations and business semantics instead of assuming every additive change is safe.

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  6. Operation tests and contract fixtures

    Choose tests that prove coercion, execution shape and policy boundaries without starting a service.

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