nullable data returning as unkown

[johnyvelho]

Description

I have a return type that can be nullable, but I am getting unknown instead:

The documentation was generated correctly:

spec json:
openapi.json

Reproducible example or configuration

No response

OpenAPI specification (optional)

openapi.json

System information (optional)

No response

[mrlubos]

Which documentation tool are you using? I think they took a liberty in supporting null type but that's not supported by OpenAPI 3.0. If you upgrade your spec to 3.1, it will generate as expected

[johnyvelho]

Gotcha! So it’s not a bug after all. Sorry about that.

I am using elysiajs, with @elysiajs/swagger plugin. there is no way to set the openapi version to 3.1 for now (its hard coded). but there is a PR opened for that: elysiajs/elysia-openapi#195.

I've changed it manually and it worked as expected. so lets wait for this PR to get approved

Thank you very much!

[Nmans01]

Looks like I'm not the only one that ran into this.