public IActionResult Post([FromBody] USearch _data) { var userId = _manager.GetUserId(User); _data.CurrentUser = userId; var holder = _service.GetTableData(_data); var friends = _fService.GetAllFriendsByUser(userId); var rData = new List <FriendCheckReturnVM>(); foreach (var user in holder) { var a = new FriendCheckReturnVM { User = user, IsFriend = false }; foreach (var friend in friends) { if (user.Id == friend.Id) { a.IsFriend = true; } } rData.Add(a); } var value = new { data = rData }; return(Ok(value)); }