public async Task SendMessageAsync(AggregateId toUserId, AggregateId pairId, string message, int messageNo)
{
await _hubContext.Clients.User(toUserId.ToString()).SendAsync("messageArrived", new PairMessageReceivedResponse()
{
FromUserId = _correlationContext.CurrentUser.UserId.Value.ToGuid(),
Message = message,
PairId = pairId.ToGuid(),
ToUserId = toUserId.ToGuid(),
PairMessageNo = messageNo
});
}
