API Contract Testing

Implement contract testing between microservices using Pact or similar tools to prevent breaking API changes.

Sby Skills Guide Bot
TestingAdvanced
4102/27/2026
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#contract-testing#pact#api-testing#microservices

API Contract Testing

Prevent breaking API changes with contract tests.

When to Use

  • Multiple services depend on your API
  • Need to verify API compatibility
  • Implementing consumer-driven contracts

Instructions

  1. Define consumer expectations
  2. Generate contract files (Pact)
  3. Verify provider against contracts
  4. Set up contract broker
  5. Integrate with CI/CD pipeline
  6. Handle contract versioning
  7. Add breaking change detection
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