//Add user to chat room
public async Task AddToGroup(string groupName, AvatarMessageModel message)
{
await Groups.AddToGroupAsync(Context.ConnectionId, groupName);
await Clients.Caller.SendAsync("downloadPreviousMessages", groupName);
await Clients.OthersInGroup(groupName).SendAsync("downloadMessage", message);
}
//send message to chat room
public async Task NewMessage(AvatarMessageModel message, string groupName)
{
await Clients.Group(groupName).SendAsync("downloadMessage", message, groupName);
}
