Enable CORS in Spring Boot - Vue - spring-boot

Question

I am trying to enable api endpoints to make them reachable in my Vue application.
I have tried set
#Configuration
#EnableWebSecurity
class SecurityConfig {
companion object {
private const val REGISTRATION_PATH = "/auth/register"
private const val AUTHENTICATION_PATH = "/auth/login"
}
#Bean
fun configure(
http: HttpSecurity,
delegatingAuthenticationEntryPoint: DelegatingAuthenticationEntryPoint
): SecurityFilterChain {
http.cors()
http.sessionManagement().sessionCreationPolicy(STATELESS)
http.authorizeRequests()
.antMatchers(REGISTRATION_PATH, AUTHENTICATION_PATH).permitAll()
.anyRequest().authenticated()
http.exceptionHandling()
.authenticationEntryPoint(delegatingAuthenticationEntryPoint)
return http.build()
}
and in endpoints I tried CrossOrigins
#CrossOrigin(origins = ["*"])
#PostMapping("/auth/register")
#ResponseStatus(CREATED)
fun register(#RequestBody registrationRequest: RegistrationRequest) =
authApiService.registerUser(registrationRequest)
But nothing seems to work. I have tried a lot of options from the previous topics but I keep getting CORS in my vue app. What else could be done?

Answer 1

Try this approach. It helps me, but I wrote in java, I converted it to kotlin by intellij idea
#Component
#Order(Ordered.HIGHEST_PRECEDENCE)
class CorsFilter : Filter {
#kotlin.Throws(IOException::class, ServletException::class)
override fun doFilter(req: ServletRequest, res: ServletResponse,
chain: FilterChain) {
val response = res as HttpServletResponse
response.setHeader("Access-Control-Allow-Origin", "*")
response.setHeader("Access-Control-Allow-Methods", "POST, PUT, GET, OPTIONS, DELETE, PATCH")
response.setHeader("Access-Control-Allow-Headers", "Authorization, Content-Type, cache-control, x-requested-with")
response.setHeader("Access-Control-Max-Age", "3600")
if ("OPTIONS".equals((req as HttpServletRequest).method, ignoreCase = true)) {
response.status = HttpServletResponse.SC_OK
} else {
chain.doFilter(req, res)
}
}
override fun destroy() {
//Not implemented
}
#kotlin.Throws(ServletException::class)
override fun init(config: FilterConfig?) {
//Not implemented
}
}