Service is not being executed with CompletableFuture - resilience4j

Question

I've been trying to use Resilience4j + OpenFeign to call services. When I get an error, the timeout is working properly, however, in case of success it always returning null and I couldn't find why. Can someone please help me on this?
Creating the builder:
public AgentesAPI getAPI(String name, String url) {
CircuitBreaker circuitBreaker = CircuitBreaker.ofDefaults(name);
RateLimiter rateLimiter = RateLimiter.ofDefaults(name);
FeignDecorators decorators =
FeignDecorators.builder()
.withCircuitBreaker(circuitBreaker)
.withRateLimiter(rateLimiter)
.withFallback(new AgentesAPIFallback())
.build();
return Resilience4jFeign.builder(decorators)
.logger(new Slf4jLogger())
.logLevel(Level.BASIC)
.target(AgentesAPI.class, url);
}
Getting a CompletableFuture with RateLimiter:
public class AgentesAPITimeLimiterService {
public CompletableFuture getCompletableFuture(String name, long miliseconds, Supplier supplier) {
TimeLimiter timeLimiter = getTimeLimiter(name, miliseconds);
ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();
return timeLimiter.executeCompletionStage(
scheduler, () -> CompletableFuture.supplyAsync(supplier))
.toCompletableFuture();
}
private TimeLimiter getTimeLimiter(String name, long miliseconds) {
return TimeLimiter.of(name,
TimeLimiterConfig.custom().timeoutDuration(
Duration.ofMillis(miliseconds)).build());
}
}
Calling the service and getting always null results:
public Agencias getAgencias(Map<String, Integer> queryMap) {
try {
CompletableFuture<Agencias> result =
_agentesAPITimeLimiterService.getCompletableFuture(configuration.backendName(),
configuration.timeout(), (() -> agentesAPI.getAgencias(queryMap)));
return result.get();
} catch (Exception e) {
throw new RuntimeException("Error getting Agencias!");
}
}
public interface AgentesAPI {
#RequestLine("POST /obtiene_agencias")
#Headers("Content-Type: application/x-www-form-urlencoded")
Agencias getAgencias(#QueryMap Map<String, Integer> queryMap);
}
The API is returning something, however, I couldn't make work in this way. Is there something that I'm missing here?
I'm using the versions below:
compileInclude group: "io.github.openfeign", name: "feign-core", version: "11.0"
compileInclude group: "io.github.openfeign", name: "feign-gson", version: "11.0"
compileInclude group: "io.github.openfeign", name: "feign-slf4j", version: "11.0"
compileInclude group: "io.github.resilience4j", name: "resilience4j-all", version: "1.5.0"
compileInclude group: "io.github.resilience4j", name: "resilience4j-feign", version: "1.5.0"
compileInclude group: "io.github.resilience4j", name: "resilience4j-timelimiter", version: "1.5.0"
compileInclude group: "org.slf4j", name: "slf4j-api", version: "1.7.30"
compileInclude group: "org.slf4j", name: "slf4j-simple", version: "1.7.30"
Thanks in advance.

Answer 1

It was resolved adding a decoder to the builder.