public override async Task OnConnectedAsync()
{
// add user to users online on connect
var httpContext = Context.GetHttpContext();
var username = httpContext.Request.Query["name"];
var connectionId = Context.ConnectionId;
var userToAdd = new User
{
ConnectionId = connectionId,
Username = username
};
var onlineUsers = await _repo.AddOnlineUser(userToAdd);
await Clients.All.SendAsync("GetOnlineUsers", onlineUsers);
var messages = await _repo.GetChatHistory();
await Clients.Caller.SendAsync("ChatHistory", messages);
await base.OnConnectedAsync();
}