[JAVA] support WebClient based (Spring WebFlux framework) client generation

[simingweng]

Description

The feature request is to add the capability to generate a client library based on the WebClient API offered by non-blocking Spring WebFlux framework

Suggest a fix/enhancement

A easy starting point could be taking a look at the blocking counterpart "RestTemplate"-based client and swap it with the non-blocking API

[fjavierjimenez]

Hello!

I would like to start working on this issue

[0v1se]

@fjavierjimenez Just created PR with WebClient support to openapi-generator: https://github.com/OpenAPITools/openapi-generator/pull/435

Wait for the PR to be merged or use my branch (https://github.com/daonomic/openapi-generator) for now (It works OK for me) Let me know if something doesn't work for you

[vchernogorov]

Is it resolved? I'm still getting this error when trying to generate webclient version of API:

java.lang.RuntimeException: Unknown library: webclient
Available libraries:
  jersey1
  feign
  jersey2
  okhttp-gson
  retrofit
  retrofit2
  resttemplate
  resteasy

[r1m]

@vchernogorov It was added to https://github.com/OpenAPITools/openapi-generator not swagger-codegen

[josebarros2025]

Please explain in details how do you solved this