public async Task Cancel_Request(string userid) { var c_userid = Context.User.FindFirst(ClaimTypes.NameIdentifier).Value; if (repo.Cancel_Request(c_userid, userid)) { await Clients.Users(c_userid, userid).SendAsync("Cancel_Request", "success", userid, c_userid); } else { await Clients.Users(c_userid, userid).SendAsync("Cancel_Request", "failed", userid, c_userid); } }