Tag: pact

2 articles

API Testing
What Is API Contract Testing? Consumer-Driven Contracts, Pact, and Schema-First Microservices (2026)
API contract testing verifies that providers and consumers honor a shared interface contract — OpenAPI schemas, Pact consumer-driven contracts, or Protobuf definitions — so breaking changes are caught before they reach production and microservices can deploy independently.
22 min readTotal Shift Left TeamApr 14, 2026
API Testing
Contract Testing for Microservices: A Practical Guide (2026)
Contract testing for microservices prevents the integration failures that plague distributed systems by formally verifying that services honor the agreements their consumers depend on. This practical guide covers consumer-driven contracts, provider verification, the Pact framework, and how OpenAPI-based tools like Shift-Left API make contract testing accessible without specialized expertise.
21 min readTotal Shift Left TeamFeb 23, 2026