pact-contracts

Consumer-driven contract testing for Go microservices is standardized using Pact to define consumer expectations and verify provider compatibility, reducing cross-service integration risks. Stateful test setups and broker integration ensure reproducible verification in CI/CD pipelines.

Yes, Pact contract testing supports NATS-based event contracts and NATS request-reply payload contracts. This allows you to verify asynchronous message interactions and ensure compatibility across your event-driven microservices.

No, this Pact CDC approach discourages gRPC proto contracts in favor of AsyncAPI. AsyncAPI is encouraged as the source of truth for defining asynchronous event contracts, ensuring better alignment with the supported testing workflow.

Pact contracts are versioned and traced in CI/CD pipelines using Git SHAs and broker integration. This ensures reproducible provider states and links verified contracts directly to specific code commits for reliable provider verification.

The best way to verify provider states in Go microservices is using Pact state handlers integrated with a Pact broker. This setup standardizes provider verification by ensuring reproducible state setups during CI/CD contract testing.

You need consumer-driven contract testing when solving cross-service compatibility issues across microservices. It standardizes interactions between consumers and providers, reducing integration risks by catching breaking changes early through broker-backed verification in CI.