Learn how to design and document APIs contract-first using the OpenAPI Specification — covering document structure, schemas, security, code generation, and the full tooling ecosystem from Swagger UI to Prism mock servers.
Api-Design
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OpenAPI and Swagger: Designing and Documenting APIs Contract-First -
REST API Design Principles A well-designed API is intuitive to use and hard to misuse. The principles that hold up under real traffic: resource modeling, the idempotency contract behind HTTP methods, status codes that tell the truth, a real error format (RFC 9457), offset vs cursor pagination honestly, versioning strategies and why most are wrong, idempotency keys, and treating the spec as the contract.