API contract testing: 4 things to validate to meet (and exceed) expectations
Blog post from Postman
In a presentation at the API Specifications Conference, Ian Douglas, a Senior Developer Advocate at Postman, emphasized the importance of API contract testing and validation to ensure high-quality API delivery. Douglas discussed how API contracts serve as agreements between producers and consumers, detailing expectations for functionality and structure. He outlined four key areas for API testing: validation of the API definition against the specification, adherence to industry standards, alignment with end-user experience, and governance validation to ensure consistency with business needs. By using tools like Postman's linter and governance features, teams can improve synchronization and trust across development and business units, thereby enhancing the overall user experience and ensuring that APIs are built to be intuitive and reliable. The presentation included demos showing how these validations can be implemented in Postman using OpenAPI specifications, contributing to a more streamlined and confident development process.
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