public async Task Publish(ChannelEvent channelEvent)
{
await Clients.Group(channelEvent.ChannelName).SendAsync(channelEvent.ChannelName, channelEvent);
if (channelEvent.ChannelName != Constants.AdminChannel)
{
await Clients.Group(Constants.AdminChannel).SendAsync(Constants.AdminChannel, channelEvent);
}
await Task.FromResult(0);
}
public async override Task OnDisconnectedAsync(Exception exception)
{
var ev = new ChannelEvent
{
ChannelName = Constants.AdminChannel,
Name = "user.disconnected",
Data = new
{
Context.ConnectionId,
}
};
await Publish(ev);
await Groups.RemoveFromGroupAsync(Context.ConnectionId, "SignalR Users");
await base.OnDisconnectedAsync(exception);
}
public override async Task OnConnectedAsync()
{
var ev = new ChannelEvent
{
ChannelName = Constants.AdminChannel,
Name = "user.connected",
Data = new
{
Context.ConnectionId,
}
};
await Publish(ev);
await Groups.AddToGroupAsync(Context.ConnectionId, Constants.AdminChannel);
await base.OnConnectedAsync();
}
public async Task <ChannelEvent> Subscribe(string channel)
{
Trace.WriteLine(channel);
await Groups.AddToGroupAsync(Context.ConnectionId, channel);
var ev = new ChannelEvent
{
ChannelName = channel,
Name = "user.subscribed",
Data = new
{
Context.ConnectionId,
ChannelName = channel
}
};
await Clients.Caller.SendAsync("Subscribed", ev);
return(ev);
}
public async Task PublishToSingleClient(ChannelEvent channelEvent)
{
await Clients.Client(Context.ConnectionId).SendAsync(channelEvent.ChannelName, channelEvent);
}