api-first-advisor

Contract-first API design uses OpenAPI as the single source of truth to align frontend and backend teams before code is written. This approach validates contracts early, preventing late-stage collisions and supporting subsequent code generation.

You can apply RFC 7807 error models and HTTP semantics by adhering to REST conventions within your OpenAPI contract. This ensures standardized error reporting and correct HTTP status usage across all API surfaces during the design phase.

Design an OpenAPI contract by applying REST conventions, HTTP semantics, and clear versioning strategies. This validated contract serves as the source of truth to directly support automated code generation and contract testing workflows.

The best way to manage API versioning is to define versioning strategies directly within your OpenAPI contract. Applying consistent REST conventions and HTTP semantics across API surfaces ensures version control aligns frontend and backend teams.

No, an API-first workflow does not require existing code. You draft your OpenAPI contract for a new resource first, applying REST conventions and HTTP semantics, then validate it with teams before any code generation begins.

An API-first approach prevents late contract decisions that cause team collisions. Using OpenAPI as the source of truth aligns frontend and backend work from the start, whereas code-first generation often leads to misaligned API surfaces.