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Server-side connection and disconnection events

On the server side, events occur when a client connects or disconnects from the StreamingHub. These events can be handled by overriding the event methods of the StreamingHubBase class.

OnConnecting method​

The OnConnecting method is called when a client is establishing a connection to the StreamingHub. At this point, the connection with the client has not been established, so you can not perform operations on the client or group.

protected override async ValueTask OnConnecting()
{
    // Processing while the client is establishing a connection

    // Example: Initialization of StreamingHub itself
}

OnConnected method​

The OnConnected method is called when a client has completed connecting to the StreamingHub. At this point, the connection with the client has been established, and you can call the client or perform operations on the group.

protected override async ValueTask OnConnected()
{
    // Processing when the client has completed connecting

    // Example: Adding to a group or sending initial state
    // this.group = await Group.AddAsync("MyGroup");
    // Client.OnConnected(initialState);
    // ..
}

OnDisconnected method​

The OnDisconnected method is called when a client is disconnected from the StreamingHub. At this point, the connection with the client has been disconnected, so operations related to the client are invalid.

protected override async ValueTask OnDisconnected()
{
    // Processing when the client is disconnected
}

For related operations and information about disconnection, see Handling disconnection.