| 
         For the latest stable version, please use Spring Security 6.4.1!  | 
    
Testing with CSRF
Spring Security also provides support for CSRF testing with WebTestClient — for example:
- 
Java
 - 
Kotlin
 
import static org.springframework.security.test.web.reactive.server.SecurityMockServerConfigurers.csrf;
this.rest
	// provide a valid CSRF token
	.mutateWith(csrf())
	.post()
	.uri("/login")
	...
import org.springframework.security.test.web.reactive.server.SecurityMockServerConfigurers.csrf
this.rest
    // provide a valid CSRF token
    .mutateWith(csrf())
    .post()
    .uri("/login")
    ...