On: Ask HN: Why isnt everyone using Swagger/OpenAPI?

[Chyzwar]

It is verbose, You often need to define type twice in Open API definition and in Java/Typescript. In addition, swagger UI is not very good. Tooling like editor support, testing, benchmarking is lacking compared to even Postman.

In most cases, there is plenty of good alternatives:

  - Sharing types
  - API/SDK client libraries
  - GraphQL
  - gRPC
  - hasura/postgrest
  - Postman

The only good use case for Swagger/OpenAPI is when you need to expose API to third parties, but even then the above solutions can also be applied.