RedirectTo Filter

The RedirectTo filter takes two parameters, status and url. The status parameter should be a 300 series redirect HTTP code, such as 301. The url parameter should be a valid URL. This is the value of the Location header. For relative redirects, you should use uri: no://op as the uri of your route definition. The following listing configures a RedirectTo filter:

application.yml
spring:
  cloud:
    gateway:
      mvc:
        routes:
        - id: redirectto_route
          uri: https://example.org
          predicates:
          - Path=/**
          filters:
          - RedirectTo=302, https://acme.org
GatewaySampleApplication.java
import static org.springframework.cloud.gateway.server.mvc.filter.BeforeFilterFunctions.uri;
import static org.springframework.cloud.gateway.server.mvc.filter.FilterFunctions.redirectTo;
import static org.springframework.cloud.gateway.server.mvc.handler.GatewayRouterFunctions.route;
import static org.springframework.cloud.gateway.server.mvc.handler.HandlerFunctions.http;

@Configuration
class RouteConfiguration {

    @Bean
    public RouterFunction<ServerResponse> gatewayRouterFunctionsRedirectTo() {
        return route("redirectto_route")
            .GET("/**", http())
            .before(uri("https://example.org"))
            .filter(redirectTo(302, URI.create("acme.org")))
            .build();
    }
}

This will send a status 302 with a Location:https://acme.org header to perform a redirect.