Spring Cloud Gateway POST Forbidden

Question

I have a resource service behind Cloud Gateway route with RelayToken filter:

      routes:
        - id: apis
          uri: http://rest-app:8080/apis
          predicates:
            - Path=/apis/**
          filters:
            - TokenRelay=

GET requests work fine, but on POSTs I get 403 Forbidden with response body containing CSRF Token has been associated to this client I've tried to disable CSRF protection adding Bean

@Bean
fun springWebFilterChain(http: ServerHttpSecurity): SecurityWebFilterChain {
    return http.csrf().disable().cors().disable().build()
}

But this has no effect and I still get 403. Moreover I cannot debug which exactly filter prevents client from doing POST requests, the only logging information I get with

logging:
  level:
    root: INFO
    org.springframework.web: TRACE
    org.springframework.security: TRACE
    org.springframework.security.oauth2: TRACE
    org.springframework.cloud.gateway: TRACE
    org.springframework.security.jwt: TRACE

is just couple of lines saying POST was forbidden

[2020-04-01 13:21:32,635] TRACE o.s.w.s.a.HttpWebHandlerAdapter  - [58a0e540-10] HTTP POST "/apis/", headers={masked} 
[2020-04-01 13:21:32,640] TRACE o.s.w.s.a.HttpWebHandlerAdapter  - [58a0e540-10] Completed 403 FORBIDDEN, headers={masked} 
[2020-04-01 13:21:32,640] TRACE o.s.h.s.r.ReactorHttpHandlerAdapter  - [58a0e540-10] Handling completed 

How do I correctly turn CSRF off?

Answer 1

Correct SecurityWebFilterChain that solved my problem:

@Bean
fun springWebFilterChain(http: ServerHttpSecurity): SecurityWebFilterChain {
    return http
        .authorizeExchange().anyExchange().authenticated()
        .and()
        .oauth2Login()
        .and()
        .csrf().disable()
        .build()
}