private static async Task RemoveGroupAsync(HubLifetimeManager <ClientHub> clientHubManager,
HubMethodInvocationMessage message)
{
if (message.TryGetGroupName(out var groupName) &&
message.TryGetConnectionId(out var connectionId))
{
await clientHubManager.RemoveGroupAsync(connectionId, groupName);
}
}
public Task RemoveAsync(string connectionId, string groupName)
{
return(_lifetimeManager.RemoveGroupAsync(connectionId, groupName));
}
