Testing
Micro-frontend teams ship independently. That's the whole point. But independent shipping only works if every team respects the interfaces their code exposes and consumes. Without enforcement, breaking changes slip through: a prop gets renamed, an event payload changes shape, a shared utility gets a new required parameter.
Contract Testing
Pact and OpenAPI both prevent API integration failures, but they solve different parts of the problem. OpenAPI defines the contract — the shape of requests and responses. Pact verifies that specific consumer interactions are honored by the provider. Used together, they cover each other's blind spots. This guide shows
Pact
Pact contract testing solves one of the hardest problems in microservices: how do you know that your services will work together without running a full integration test suite? This guide covers Pact from the ground up — what it is, how consumer-driven contracts work, and how to integrate Pact into
Pact
Consumer-driven contract testing with Pact is well-documented at the basics level: consumer writes expectations, provider verifies them.
Testing
Integration testing microservices is notoriously painful. You need real instances of every dependent service, a shared environment where everyone's changes play nicely together, and the patience to debug failures caused by a schema change three teams made two weeks ago. Contract testing — specifically consumer-driven contract testing — cuts