RemoveRequestHeader GatewayFilter Factory

The RemoveRequestHeader filter takes a name parameter. It is the name of the header to be removed. The following listing configures a RemoveRequestHeader filter:

application.yml
spring:
  cloud:
    gateway:
      mvc:
        routes:
        - id: removerequestheader_route
          uri: https://example.org
          predicates:
          - Path=/**
          filters:
          - RemoveRequestHeader=X-Request-Foo
GatewaySampleApplication.java
import static org.springframework.cloud.gateway.server.mvc.filter.BeforeFilterFunctions.uri;
import static org.springframework.cloud.gateway.server.mvc.filter.BeforeFilterFunctions.removeRequestHeader;
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> gatewayRouterFunctionsRemoveRequestHeader() {
        return route("removerequestheader_route")
            .GET("/**", http())
            .before(uri("https://example.org"))
            .before(removeRequestHeader("X-Request-Foo"))
            .build();
    }
}

This removes the X-Request-Foo header before it is sent downstream.