package com.aiteacher.auth; import org.springframework.http.ResponseEntity; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import java.security.Principal; import java.util.Map; @RestController @RequestMapping("/api/v1/auth") public class AuthController { @GetMapping("/check") public ResponseEntity> check(Principal principal) { return ResponseEntity.ok(Map.of("username", principal.getName())); } }