contract-testing

You prevent API contract drift by validating consumer expectations against providers using consumer-driven contract testing. This verifies service boundaries and ensures providers meet consumer requirements before deployment.

Consumer-driven contract testing validates API interactions by having consumers define expected responses, then verifying providers against those expectations. It uses Pact to coordinate contracts across microservices architectures.

Contract testing integrates into CI/CD pipelines by automating provider verification and blocking deployments that introduce breaking changes. This validates consumer expectations automatically during the build process.

Yes, OpenAPI schema validation is supported for contract testing alongside Pact. You can validate consumer expectations against providers and perform backward compatibility checks using OpenAPI definitions.

Yes, contract testing supports semantic versioning and backward compatibility checks. It validates that API changes maintain compatibility with existing consumer expectations across service boundaries.

The best way to coordinate API contracts across teams is using consumer-driven contract validation with automated verification. This prevents drift by ensuring providers meet consumer expectations through multi-agent orchestration in CI/CD pipelines.