openapi-to-typescript

To convert an OpenAPI spec to TypeScript interfaces, provide your OpenAPI 3.0 JSON or YAML file path. The tool parses components/schemas and paths to generate TypeScript types and runtime type guards into a default types/api.ts file.

Yes, you can generate TypeScript types from OpenAPI paths for frontend workflows. The tool creates request and response types for each API endpoint, enforcing strong type safety between backend API contracts and frontend code.

OpenAPI to TypeScript codegen handles complex schema constructs like oneOf, allOf, enums, and $ref references. It properly parses these OpenAPI 3.0 definitions to generate accurate TypeScript interfaces and type guards.

You validate API data at runtime using generated TypeScript types by producing runtime type guards alongside static interfaces. These type guards allow your client libraries and applications to validate API responses dynamically during execution.

Yes, you can specify a custom output path instead of the default types/api.ts for generated TypeScript types. While the default output targets types/api.ts, the tool supports optional custom paths for your generated interfaces and type guards.

The best way to enforce API contracts in a TypeScript client library is converting OpenAPI 3.0 specifications into TypeScript interfaces and runtime type guards. This ensures strong type safety across backend-to-frontend workflows and client integrations.