permitAll()

로그인한 유저의 id 가져오기 (컨트롤러에서)

@PostMapping
public ResponseEntity<ReservationResponseForGuest> createReservation(
    @Valid @RequestBody CreateReservationRequest request,
    @AuthenticationPrincipal JwtAuthentication user
) {
    return ResponseEntity.ok(reservationService.createReservation(user.id(), request));
}