WebFlux handlers using kotlin coroutines do not produce response documentation

[jnfeinstein]

I've created a demo application here.

I believe the issue is related to this line. The return type for the mono implementation is reactor.core.publisher.Mono<com.example.demo.SystemStatusResponse> whereas the return type for the coroutine implementation is class java.lang.Object. It appears that the correct response type is locked away somewhere in the parameters: kotlin.coroutines.Continuation<? super com.example.demo.SystemStatusResponse> continuation.

[jnfeinstein]

@joaodias14 JFYI...

[joaodias14]

Hi @jnfeinstein, honestly we never noticed that until now :D.
It seems there is an issue out there.

[joaodias14]

Hi @jnfeinstein, I opened a PR to fix the issue. If you will, take a look and suggest any change you find relevant. Thanks!

[bnasslahsen]

Thank you @joaodias14 for your help.
The fix will be available in the next release v1.2.27.

[jnfeinstein]

We're loading 1.2.27 now! Thank you @joaodias14 and @bnasslahsen.

[neonomaly]

Guys, hi!

I'am using springdoc-openapi-webflux-ui:1.2.30 lib and still have an issue:

@RestController
@RequestMapping("/v1")
class V1Controller {
  
  @GetMapping("/smth", produces = [MediaType.APPLICATION_JSON_VALUE])
  suspend fun getSmth(): List<Some> {
     return listOf(Some(), Some())
  }
}

and still has a required parameter $completion of request and ContinuationObject and CoroutineContext in schema section.

P.S. I'am using GroupedOpenAPI

[jnfeinstein]

@neonomaly do you have the kotlin extension installed?

[neonomaly]

@neonomaly do you have the kotlin extension installed?

With springdoc-openapi-kotlin everything ok. Thank you!