Multiple base URLs in application config for one rest client

[jacksmom]

Hi,

I have an application where I have one rest client that communicates with one service through a post method "call toggle". I currently have that rest client configured for one instance of that service:

services.ExampleService/mp-rest/url="url"

Client:

@Path("/x")
@RegisterRestClient
public interface ExampleService {
	
	  @POST
	  @Path("/toggle")
	  	String callToggle();
}

Injecting and calling the client:

@Inject
@RestClient
ExampleService service;


@Operation(hidden = true)
@POST
@Path("/toggle")
@Transactional
@Consumes(MediaType.TEXT_PLAIN)
public CompletionStage<String> toggleService(Integer id) {
	service.callToggle();
}

I'd like to be able to communicate with multiple instances of the same service, calling this "call toggle" post method to multiple base urls.

How do I configure multiple base URL's for this same service in the application config and choose which url to use when I call the client?

[quarkus-bot[bot]]

/cc @Sgitario (rest-client), @cescoffier (rest-client), @geoand (rest-client)

[Sgitario]

You would need to build the client programmatically injecting the baseUri from the application config. For example:

application.properties:

my.services=http://server:port/x/toggle,http://server:port/y/toggle

creating the client programmatically:

@ConfigProperty("my.services")
List<String> myServices;

List<ExampleService> services;

public void setup() {
  for (String myService : myServices) {
     services.add(RestClientBuilder.newBuilder()
            .baseUri(URI.create(myService))
            .build(ExampleService.class));
  } 
}

[cescoffier]

You may be able to use a stork discovery provider. But the API approach is probably better (and simpler)