public DiscordClient(string token, ILogger logger = null, string gatewayUrl = "wss://gateway.discord.gg")
{
_token = token;
_gatewayUrl = gatewayUrl + "/?v=6&encoding=json";
_gateway = new GatewayConnection(_gatewayUrl, logger);
_logger = logger;
}
private async Task SocketMessageReceived(GatewayConnection conn, EventArgs.SocketMessageEventArgs e)
{
_logger.LogTrace(LogEvent.MessageReceived, "Opcode = {}, Event = {}", e.Payload.Opcode, e.Payload.Event ?? "null");
if (e.Payload.Opcode == 10)
{
// hello received, send identify or resume
if (_sessionId == null)
{
var identify = new IdentifyPayload
{
Token = _token,
Intents = 512
};
await _gateway.SendAsync(2, identify);
}
else
{
_logger.LogDebug(LogEvent.MessageReceived, "Attempting to resume");
var resume = new ResumePayload
{
SequenceNumber = _gateway.LastSeqNumber,
SessionId = _sessionId,
Token = _token
};
await _gateway.SendAsync(6, resume);
}
}
if (e.Payload.Opcode == 9)
{
_logger.LogDebug(LogEvent.MessageReceived, "Invalid Session received, reconnecting");
_sessionId = null;
await _gateway.ClientWebSocket.CloseAsync(WebSocketCloseStatus.Empty, "reconnecting", CancellationToken.None);
}
if (e.Payload.Opcode == 0)
{
if (e.Payload.Event == "MESSAGE_CREATE")
{
var message = JObject.FromObject(e.Payload.Data).ToObject <DiscordMessage>();
MessageReceived?.Invoke(this, new MessageReceivedEventArgs {
Message = message, User = message.User
});
}
if (e.Payload.Event == "READY")
{
var ready = JObject.FromObject(e.Payload.Data).ToObject <ReadyPayload>();
_sessionId = ready.SessionId;
_logger.LogInformation(LogEvent.Ready, "Connected to discord as {}#{}", ready.User.Username, ready.User.Discriminator);
}
}
}
private async Task Disconnected(GatewayConnection conn)
{
_logger.LogInformation(LogEvent.Disconnected, "Connection to Discord lost, attempting to reconnect in 2s");
await Task.Delay(2000);
_logger.LogTrace(LogEvent.Disconnected, "Reconnecting now");
_gateway = new GatewayConnection(_gatewayUrl, _logger);
_gateway.SocketMessageReceived += SocketMessageReceived;
_gateway.Disconnected += Disconnected;
await _gateway.ConnectAsync();
}
private async Task InternalSocketMessageReceived(GatewayConnection conn, SocketMessageEventArgs e)
{
if (e.Payload.Opcode == 10)
{
_heartbeatInterval = JObject.FromObject(e.Payload.Data).Value <int>("heartbeat_interval");
_logger.LogTrace(LogEvent.InternalMessageReceived, "heartbeat_interval = {}", _heartbeatInterval);
new Thread(new ThreadStart(HeartbeatLoop)).Start();
}
if (e.Payload.Opcode == 1)
{
_lastSeqNum = (int)e.Payload.Data;
await SendHeartbeat();
}
}