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API Reliability & Contract Governance

Unify API quality via contract testing, async/event validation, schema drift detection, and backward compatibility checks.

~40 min5 prompts

Learning Objectives

  • Protect consumer contracts during API evolution
  • Validate event-driven API reliability
  • Detect and communicate schema drift early

Prerequisites

  • OpenAPI/GraphQL familiarity

Prompts in this Collection

  1. 1

    Generate API Contract Tests from OpenAPI Spec

    Create a production-grade API contract test suite that validates response schemas, status codes, headers, and error payloads against an OpenAPI 3.0 spec.

    Start from formal OpenAPI contract validation.

    advanced
    playwright
  2. 2

    Postman Async Event Contract Tests

    Validate eventual consistency and async callback contracts for event-driven APIs.

    Extend to asynchronous event workflows.

    advanced
    postman
  3. 3

    Postman Schema Drift Alerting Pack

    Detect unannounced API schema drift before consumers break.

    Detect accidental contract changes.

    intermediate
    postman
  4. 4

    Postman Versioned API Backward Compatibility

    Validate old clients remain supported during API version evolution.

    Ensure legacy consumers stay functional.

    intermediate
    postman
  5. 5

    Pytest API Pagination Consistency Tests

    Validate offset/cursor pagination correctness and stability under mutations.

    Protect pagination correctness under real-world mutation.

    intermediate
    pytest