public IHttpActionResult PostSignIn([FromBody] SignIn request) { try { var res = _Authen.haveUser(request.username); if (res) { return(Json(new { TempData = Securities.Encode(_Authen.GetUsers(request.username)) })); } return(BadRequest("This username don't has in database")); } catch (Exception ex) { return(BadRequest(ex.Message)); } }