webjars are not served from the expected url in webflux-ui with swagger-ui prefix path set

[maartenh]

Describe the bug
When I have a custom path /documentation/swagger-ui.html set for the webflux-ui version, this redirects to /documentation/webjars/swagger-ui/index.html?configUrl=/documentation/v3/api-docs/swagger-config
However, the webjars are not available on this url, leading to a 404 response.
The webjars are available on the alternative path /webjars/swagger-ui/index.html?configUrl=/documentation/v3/api-docs/swagger-config, ie without the /documentation prefix. That however foils my plan to have everything under the /documentation prefix for easier management of access permissions.

I tried also setting springdoc.webjars.prefix: /documentation/webjars, but that just compounded the issue by redirecting to /documentation/documentation/webjars/swagger-ui/index.html without changing the actual location the webjars were served from.

To Reproduce
Steps to reproduce the behavior:

• What version of spring-boot you are using? v2.2.4
• What modules and versions of springdoc-openapi are you using? springdoc-openapi-webflux-ui v1.2.32

springdoc.api-docs.path: /documentation/v3/api-docs
springdoc.swagger-ui.path: /documentation/swagger-ui.html

• Access the path /documentation/swagger-ui.html from a web browser.
• Observe 404 error

Expected behavior
The swagger ui is shown when accessing /documentation/swagger-ui.html

[bnasslahsen]

Hi,

You can use the following configuration class.
We will make this functionnality out of the box, for webflux from the next release: v1.2.33

@Configuration
public class SwaggerConfig implements WebFluxConfigurer {

	@Override
	public void addResourceHandlers(ResourceHandlerRegistry registry) {
		registry.addResourceHandler("/documentation/webjars/**")
				.addResourceLocations("classpath:/META-INF/resources/webjars/")
				.resourceChain(false);
	}

}

[joaodias14]

Hi @bnasslahsen, with 6414fbe there is no longer the need to use the configuration you mentioned in your previous comment right?

[bnasslahsen]

Hi @joaodias14,

Yes i confirm. It will be available on the next release.

[joaodias14]

Many thanks @bnasslahsen!