COMPARE
JSON Schema and OpenAPI
Payload constraints are one part of an HTTP interface contract.
| Question | JSON Schema | OpenAPI |
|---|---|---|
| Primary scope | Structure and constraints of JSON instances | HTTP paths, operations, parameters, requests, responses, and security descriptions |
| Useful check | Does this object satisfy the supplied schema? | Does the described operation include the intended request and error responses? |
| Boundary | A valid payload need not be true or authorized | A complete description does not prove the running server conforms |
Try the distinction
A registration object validates, but you do not know which endpoint accepts it or what a full workshop returns. What should you add?
Open the reasoning
Define the HTTP operation and response cases in OpenAPI, reusing the payload schema where appropriate. Test the implementation separately.
Go deeper
JSON Schema
Describe which JSON values have the structure and constraints your application expects.
OpenAPI
Describe an HTTP API’s operations, inputs, responses, and security requirements.