[FIXED] reactive feign client global retry

Issue

I am switching from feign client to reactive feign client, I have defined global retryer for feign:

  @Bean
  Retryer retryer() {
    return new Retryer.Default(100, 1, 5);
  }

  @Bean
  ErrorDecoder errorDecoder() {
    return new HttpErrorDecoder();
  }

  static class HttpErrorDecoder implements ErrorDecoder {

    private final ErrorDecoder defaultErrorDecoder = new Default();

    @Override
    public Exception decode(String methodKey, Response response) {
      Exception exception = defaultErrorDecoder.decode(methodKey, response);

      if (response.status() != HttpStatus.SC_OK) {
        return new RetryableException(response.status(),
            "api call for url: " + response.request().url() + " failed",
            response.request().httpMethod(), exception.getCause(), null,
            response.request());
      }

      return exception;
    }
  }

With non-reactive client retries works fine, with reactive client error decoder raises RetryableException as it should, but Retryer doesn't react - no retry is executed. I am using mostly webflux Mono<T>, is there a way how to make it work or Retryer won't work for reactive feign? If so, is it possible to define "global retries" or do I need to define retry for every call/mono ?

Solution

Retryer was removed from Reactive client. You should use ReactiveRetryPolicy

@Bean
public ReactiveRetryPolicy reactiveRetryPolicy() {
    return BasicReactiveRetryPolicy.retryWithBackoff(5, 100);
}

Answered By - Cool-T