OpenAPI
Also called: Swagger, API spec
A standard file format that describes an API's endpoints, parameters and responses (formerly called Swagger).
Definition
OpenAPI files power interactive API docs where you can read and try every endpoint. Testers compare real responses with what the spec promises.
In practice
The spec says price is a number, but the API returns "19.99" as a string, which is a bug.
Learn it in context
Lessons that use this term.