From the course: Learning SignalR with ASP.NET Core
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Add connections to groups
From the course: Learning SignalR with ASP.NET Core
Add connections to groups
- [Instructor] The hub in this app currently uses Clients.All to broadcast any message that it receives. This means that all messages are seen by every connection. A better experience for this app would be to create a new group for each visitor to the site. Each visitor would then be able to speak to a support agent in their own private room. We'll use SignalR groups to make this work. Let's open up the chat hub, and in the OnConnectedAsync method that runs when a new connection is established, at the top of this method I'm going to do await Groups.AddToGroupAsync. To add a connection to a group you need to specify the connection ID and a group name as a string. The connection ID is just Context.ConnectionId for the current connection ID, and then we need to specify a group name. We don't have a group name to use quite yet. Since SignalR doesn't persist or keep track of the groups themselves, we'll need to add a service that can remember the groups that have been created. Since this…
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