Spring Boot Reactive WebFlux application reuse inbout call's JWT to outbound calls

I have spring boot reactive application that validate inbound calls with JwtIssuerReactiveAuthenticationManagerResolver (multiple issuer) - this part working fine. But than I have to call other services via WebClient with already configured OAuth2 registrations (via application.properties) with different authentications to retrieve results. But outbound calls reuse inbound JWT token to this calls.

Outbound endpoints are imported to my project via openapi-generator-maven-plugin (with configuration: generator java, library webclient)

I had try to search for correct configuration for WebClient to initialize ApiClient but non of them works.

An option is to retrieve the Bearer string from the authentication in the security context and manually setting an Authorization header to WebClient requests (provided that the configured Authentication implementation stores the original token string, of course).

If you have configured a JwtIssuerReactiveAuthenticationManagerResolver, you most probably have a JwtAuthenticationToken in the security context of authorized requests.

@RestController
@RequiredArgsConstructor
public class SampleController {
	private final WebClient otherResourceServer;

	@GetMapping("/something")
	@PreAuthorize("isAuthenticated()")
	public Mono<Object> getSomething(JwtAuthenticationToken auth) throws URISyntaxException {
		return otherResourceServer
				.get()
				.uri("https://some.host/getSomethingElse")
				.header(HttpHeaders.AUTHORIZATION, "Bearer %s".formatted(auth.getToken().getTokenValue()))
				.exchangeToMono(resp -> resp.bodyToMono(Object.class));
	}
}