Htykuut

I have an oauth2 client that get a token from an authorization server successfully. (not always has been the case but now it is... :))

The client, the zuul gateway and the resource server are all registered in Eureka.

My client use a Proxy to access to a remote ressource service named microservice-files.

@RestController

@FeignClient(name = "zuul-server")

@RibbonClient(name = "microservice-files")



public interface ProxyMicroserviceFiles {



    @GetMapping(value = "microservice-files/root")

    FileBean getUserRoot();



}

So I'd like to relay the token to Zull and then to the resource server.

I can relay the token this way to contact Zuul and apparently the load balancing is managed too (I've just test I didn't know and it's great) also zuul can relay the token, but it's not very convenient I'd prefer the previous approach.

@EnableConfigurationProperties

@SpringBootApplication

@EnableFeignClients("com.clientui")

public class ClientUiApplication {



    @Bean

    public OAuth2RestOperations restOperations(

            OAuth2ProtectedResourceDetails resource, 

            OAuth2ClientContext context) {



        return new OAuth2RestTemplate(resource, context);

    }



    public static void main(String args) {



        SpringApplication.run(ClientUiApplication.class, args);

    }

}

here is the test controler

@Controller

public class ClientController {



    @Autowired

    private RestOperations restOperations;



    @RequestMapping("/root")

    public ResponseEntity userRootTest() {



       String rootUrl = "http://localhost:9004/microservice-files/root";



       return  restOperations.getForEntity(rootUrl,FileBean.class);



    }



}

If I correctly understand your problem then you can use a RequestInterceptor to add a token in each request by the feign. In order to do it you can use the next configuration:

@Bean

public RequestInterceptor oauth2FeignRequestInterceptor(OAuth2ClientContext oauth2ClientContext,

                                                        OAuth2ProtectedResourceDetails resource) {

    return new OAuth2FeignRequestInterceptor(oauth2ClientContext, resource);

}



@Bean

protected OAuth2ProtectedResourceDetails resource() {

    AuthorizationCodeResourceDetails resource = new AuthorizationCodeResourceDetails();

    resource.setAccessTokenUri("http://127.0.0.1:9000/auth/login");

    resource.setUserAuthorizationUri("http://127.0.0.1:9000/auth/authorize");

    resource.setClientId("my-client");

    resource.setClientSecret("my-secret");

    return resource;

}