api-contract-writer

To generate HTTP API contracts from use cases, provide reviewed use cases and technical design to derive endpoint definitions, mapping use-case elements to HTTP methods, URLs, and status codes. This produces structured templates with derived requests and responses.

Mapping use-case elements to HTTP methods and status codes is done by deriving endpoint definitions from interactors, typed errors, and domain events, ensuring each status code and error envelope is traceable to its use case and postconditions.

Ensuring every REST API endpoint and error envelope is traceable to its use case requires deriving HTTP API contracts from validated use cases and technical designs, enforcing consistent interfaces and error handling across all generated specifications.

Using this API contract writer for REST APIs requires pre-existing reviewed use cases and technical design documents as input. Without these prerequisites, endpoint definitions, request and response shapes, and error mappings cannot be accurately derived.

Generating API contract templates requires no external dependencies or components. The process derives requests and responses directly from the provided use cases and technical design inputs to produce the final structured contract.

Deriving API contracts from use cases automatically is limited by the quality of the input use cases and technical design. If the reviewed scenarios lack postconditions or typed errors, the generated endpoint definitions and error mappings may be incomplete.