TcpDotNet/TcpDotNet.ListenerIntegrationTest/Program.cs

using TcpDotNet;
using TcpDotNet.ListenerIntegrationTest.PacketHandlers;
using TcpDotNet.Protocol;
using TcpDotNet.Protocol.Packets.ClientBound;
using TcpDotNet.Protocol.Packets.ServerBound;

var listener = new ProtocolListener();
listener.ClientConnected += (_, e) =>
{
    Console.WriteLine($"Client connected from {e.Client.RemoteEndPoint} with session {e.Client.SessionId}");
    return Task.CompletedTask;
};
listener.ClientDisconnected += (_, e) =>
{
    Console.WriteLine($"Client {e.Client.SessionId} disconnected ({e.DisconnectReason})");
    return Task.CompletedTask;
};

listener.RegisterPacketHandler(new HelloPacketHandler());
listener.RegisterPacketHandler(new PingPacketHandler());

Console.WriteLine("Starting listener");
listener.Start(1234);
Console.WriteLine($"Listener started on {listener.LocalEndPoint}");

await Task.Delay(-1);

internal sealed class PingPacketHandler : PacketHandler<PingPacket>
{
    public override async Task HandleAsync(ClientNode recipient, PingPacket packet, CancellationToken cancellationToken = default)
    {
        Console.WriteLine($"Client {recipient.SessionId} sent ping with payload {BitConverter.ToString(packet.Payload)}");
        var pong = new PongPacket(packet.CallbackId, packet.Payload);
        await recipient.SendPacketAsync(pong, cancellationToken);
    }
}