contract testing

This article examines the current state of issues in working with APIs of various systems. The most common methodologies (Agile and DevOps), methods, and tools for building automated pipelines for project assembly and testing were analyzed, and a general pipeline structure was presented, which serves as a starting point for project development. As a result of analyzing surveys of developers and DevOps engineers, key problems in integration between different systems using APIs were identified.

This article analyzes the use of contract testing to verify the compatibility of two components, specifically web servers that use an Application Programming Interface (API) for data transmission.

Additionally, the article includes a comparison of APIs and contract tests and describes cases where the latter have an advantage. A contract structure for contract testing is described.