I am trying to introduce a custom decoder in order to throw appropriate exceptions rather than the generic Feign.Retryable exception and for that I wanted a custom decoder. Following the documentation: https://docs.spring.io/spring-cloud-openfeign/docs/current/reference/html/#springencoder-configuration:~:text=Spring%20Cloud%20OpenFeign%20does%20not%20provide%20the%20following%20beans%20by%20default%20for%20feign%2C%20but%20still%20looks%20up%20beans%20of%20these%20types%20from%20the%20application%20context%20to%20create%20the%20feign%20client%3A, I have the following classes:
Added the config class
@FeignClient(
value = "rateservice",
url = "${rateservice.api.baseurl}",
configuration = CustomFeignConfig.class)
public interface RateClient {
@RequestMapping(method = RequestMethod.POST, value = "/calculatedrates")
Rate calculateRate(RateRequest request);
@RequestMapping(method = RequestMethod.POST, value = "/overrides")
RateOverrideResponse createRateOverride(RateOverrideRequest rateOverrideRequest);
}
Config class
@RequiredArgsConstructor
@Configuration
public class CustomFeignConfig {
private final CustomErrorDecoder customErrorDecoder;
@Bean
public ErrorDecoder errorDecoder(){
return customErrorDecoder;
}
Implementation of the custom error decoder
@Component
@Slf4j
public class CustomErrorDecoder implements ErrorDecoder {
@Override
public Exception decode(String methodKey, Response response) {
log.info(response.toString()); // For now just making it hit the breakpoint
return new RuntimeException();
}
}
However, I see the customErrorDecoder not coming into effect.
I set a breakpoint in the error-decoder and it wasn't getting hit when I intentionally tried to fail the feign client call. Thanks you for the help in advance.
