public static async Task Inspect_Outgoing_Package()
{
/*
* This sample covers the inspection of outgoing packages from the client.
*/
var mqttFactory = new MqttFactory();
using (var mqttClient = mqttFactory.CreateMqttClient())
{
var mqttClientOptions = mqttFactory.CreateClientOptionsBuilder()
.WithTcpServer("broker.hivemq.com")
.Build();
mqttClient.InspectPackage += OnInspectPackage;
await mqttClient.ConnectAsync(mqttClientOptions, CancellationToken.None);
Console.WriteLine("MQTT client is connected.");
var mqttClientDisconnectOptions = mqttFactory.CreateClientDisconnectOptionsBuilder()
.Build();
await mqttClient.DisconnectAsync(mqttClientDisconnectOptions, CancellationToken.None);
}
}
public static async Task Create_Custom_Logger()
{
/*
* This sample covers the creation of a custom logger which can be used to forward MQTTnet log messages
* to other loggers like Microsoft logger or Serilog or log4net etc.
*/
var mqttFactory = new MqttFactory(new MyLogger());
var mqttClientOptions = mqttFactory.CreateClientOptionsBuilder()
.WithTcpServer("broker.hivemq.com")
.Build();
using (var mqttClient = mqttFactory.CreateMqttClient())
{
await mqttClient.ConnectAsync(mqttClientOptions, CancellationToken.None);
Console.WriteLine("MQTT client is connected.");
var mqttClientDisconnectOptions = mqttFactory.CreateClientDisconnectOptionsBuilder()
.Build();
await mqttClient.DisconnectAsync(mqttClientDisconnectOptions, CancellationToken.None);
}
}
public static async Task Connect_Client()
{
/*
* This sample creates a simple MQTT client and connects to a public broker.
*
* Always dispose the client when it is no longer used.
* The default version of MQTT is 3.1.1.
*/
var mqttFactory = new MqttFactory();
using (var mqttClient = mqttFactory.CreateMqttClient())
{
// Use builder classes where possible in this project.
var mqttClientOptions = new MqttClientOptionsBuilder().WithTcpServer("broker.hivemq.com").Build();
// This will throw an exception if the server is not available.
// The result from this message returns additional data which was sent
// from the server. Please refer to the MQTT protocol specification for details.
var response = await mqttClient.ConnectAsync(mqttClientOptions, CancellationToken.None);
Console.WriteLine("The MQTT client is connected.");
response.DumpToConsole();
// Send a clean disconnect to the server by calling _DisconnectAsync_. Without this the TCP connection
// gets dropped and the server will handle this as a non clean disconnect (see MQTT spec for details).
var mqttClientDisconnectOptions = mqttFactory.CreateClientDisconnectOptionsBuilder().Build();
await mqttClient.DisconnectAsync(mqttClientDisconnectOptions, CancellationToken.None);
}
}
public static async Task Use_Event_Logger()
{
/*
* This sample shows how to get logs from the library.
*
* ATTENTION: Only use the logger for debugging etc. The performance is heavily decreased when a logger is used.
*/
// The logger ID is optional but can be set do distinguish different logger instances.
var mqttEventLogger = new MqttNetEventLogger("MyCustomLogger");
mqttEventLogger.LogMessagePublished += (sender, args) =>
{
var output = new StringBuilder();
output.AppendLine($">> [{args.LogMessage.Timestamp:O}] [{args.LogMessage.ThreadId}] [{args.LogMessage.Source}] [{args.LogMessage.Level}]: {args.LogMessage.Message}");
if (args.LogMessage.Exception != null)
{
output.AppendLine(args.LogMessage.Exception.ToString());
}
Console.Write(output);
};
var mqttFactory = new MqttFactory(mqttEventLogger);
var mqttClientOptions = mqttFactory.CreateClientOptionsBuilder()
.WithTcpServer("broker.hivemq.com")
.Build();
using (var mqttClient = mqttFactory.CreateMqttClient())
{
await mqttClient.ConnectAsync(mqttClientOptions, CancellationToken.None);
Console.WriteLine("MQTT client is connected.");
var mqttClientDisconnectOptions = mqttFactory.CreateClientDisconnectOptionsBuilder()
.Build();
await mqttClient.DisconnectAsync(mqttClientDisconnectOptions, CancellationToken.None);
}
}
