I have the following Feign Client:
public interface MyServiceClient {
@RequestMapping(method = RequestMethod.GET, value = "/item/{itemKey}")
Item getItem (@PathVariable("itemKey") String itemKey);
}
The items can contains special characters like : or :: which are being encoded.
Request URL becomes something like:
https://myservice.com/item/a%3Ab%3A%3AcRather than:
https://myservice.com/item/a:b::cCan anyone help me understand how can we fix this issue?
OpenFeign has an issue tracking:
Guess it will be implemented by spring-cloud-feign once its done.
Meanwhile, my workaround for this issue is to create a RequestInterceptor and replace %3A with :
public class MyRequestInterceptor implements RequestInterceptor {
@Override
public void apply(RequestTemplate template) {
template.uri(template.path().replaceAll("%3A", ":"));
}
}
And use this requestInterceptor to build your feignClient in the feignConfig:
@Bean
public Feign.Builder tcsClientBuilder() {
return Feign.builder().requestInterceptor(new MyRequestInterceptor());
}
This works for me in my case:
//ICustomFeignClient = your Feign client interface
Feign.builder()
.client(new OkHttpClient())
.encoder(new GsonEncoder())
.decoder(new GsonDecoder())
.logger(new Slf4jLogger(builderClass))
.logLevel(Logger.Level.FULL)
.requestInterceptor(new CustomFeignRequestInterceptor())
.target(ICustomFeignClient, baseUrl);
// custom interceptor class below
class CustomFeignRequestInterceptor implements RequestInterceptor {
@Override
public void apply(RequestTemplate requestTemplate) {
// you can replace the string you don't want from here
requestTemplate.uri(
requestTemplate.request()
.url()
.replaceAll("%3D", "=")
.replaceAll("%26", "&")
);
}
}