CODEWITHSUNDEEP
spring-cloudspring-cloud-gateway
William
William

Reputation: 11

spring-cloud-gateway webflux ProxyExchange returns 404

I would like to create a simple proxy and aggregator server with spring-cloud-gateway. I am using dependency spring-cloud-gateway-webflux and ProxyExchange to do that. I start the app in localhost and launch it from a browser, however, it returns 404 not found.

If I use spring-cloud-gateway-mvc instead of spring-cloud-gateway-webflux, surprising the proxy works and I can browse stackoverflow in my localhost. But I still would like to find out why spring-cloud-gateway-webflux is not working.

Can anyone help to point out anything that I am missing?

controller:

@RestController
public class RouteController {
    @RequestMapping(value="/**", method={ RequestMethod.GET, RequestMethod.POST })
    public Mono<ResponseEntity<byte[]>> proxy(ServerHttpRequest request, ServerHttpResponse response, ProxyExchange<byte[]> proxy) throws Exception {
        String path = proxy.path("/");
        if (request.getMethodValue().startsWith("GET")) {
            return proxy.uri("https://stackoverflow.com/" + path).get();
        } else {
            return proxy.uri("https://stackoverflow.com/" + path).post();
        }
    }
}

application.yml:

server:
  port: 8080

I tried with adding the following to application.yml but it doesn't work.

spring:
  cloud:
    gateway:
      httpclient:
        ssl:
          useInsecureTrustManager: true

Upvotes: 1

Views: 2842

Answers (1)

York
York

Reputation: 523

In my situation, it's the problem of http headers. Add the following code, then everything works for me.

proxy.sensitive(HttpHeaders.HOST)

It seems like ProxyExchange will pass down the http request header by default, and in the case of WebClient, there is no default http header.

Upvotes: 3

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