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Add new samples.

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This commit is contained in:
Christian
2022-06-18 11:38:36 +02:00
parent a3c7f9a22c
commit 14eb202873
3 changed files with 128 additions and 27 deletions
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Samples/Server/Server_Simple_Samples.cs
+64 -17
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@@ -9,27 +9,66 @@ namespace MQTTnet.Samples.Server;
public static class Server_Simple_Samples
{
public static async Task Force_Disconnecting_Client()
{
/*
* This sample will disconnect a client.
*
* See _Run_Minimal_Server_ for more information.
*/
using (var mqttServer = await StartMqttServer())
{
// Let the client connect.
await Task.Delay(TimeSpan.FromSeconds(5));
// Now disconnect the client (if connected).
var affectedClient = (await mqttServer.GetClientsAsync()).FirstOrDefault(c => c.Id == "MyClient");
if (affectedClient != null)
{
await affectedClient.DisconnectAsync();
}
}
}
public static async Task Publish_Message_From_Broker()
{
/*
* This sample will publish a message directly at the broker.
*
* See _Run_Minimal_Server_ for more information.
*/
using (var mqttServer = await StartMqttServer())
{
// Create a new message using the builder as usual.
var message = new MqttApplicationMessageBuilder().WithTopic("HelloWorld").WithPayload("Test").Build();
// Now inject the new message at the broker.
await mqttServer.InjectApplicationMessage(
new InjectedMqttApplicationMessage(message)
{
SenderClientId = "SenderClientId"
});
}
}
public static async Task Run_Minimal_Server()
{
/*
* This sample starts a simple MQTT server which will accept any TCP connection.
*/
var mqttFactory = new MqttFactory();
// The port for the default endpoint is 1883.
// The default endpoint is NOT encrypted!
// Use the builder classes where possible.
var mqttServerOptions = new MqttServerOptionsBuilder()
.WithDefaultEndpoint()
.Build();
var mqttServerOptions = new MqttServerOptionsBuilder().WithDefaultEndpoint().Build();
// The port can be changed using the following API (not used in this example).
new MqttServerOptionsBuilder()
.WithDefaultEndpoint()
.WithDefaultEndpointPort(1234)
.Build();
new MqttServerOptionsBuilder().WithDefaultEndpoint().WithDefaultEndpointPort(1234).Build();
using (var mqttServer = mqttFactory.CreateMqttServer(mqttServerOptions))
{
await mqttServer.StartAsync();
@@ -50,13 +89,7 @@ public static class Server_Simple_Samples
* See _Run_Minimal_Server_ for more information.
*/
var mqttFactory = new MqttFactory();
var mqttServerOptions = new MqttServerOptionsBuilder()
.WithDefaultEndpoint()
.Build();
using (var mqttServer = mqttFactory.CreateMqttServer(mqttServerOptions))
using (var mqttServer = await StartMqttServer())
{
// Setup connection validation before starting the server so that there is
// no change to connect without valid credentials.
@@ -88,4 +121,18 @@ public static class Server_Simple_Samples
await mqttServer.StopAsync();
}
}
static async Task<MqttServer> StartMqttServer()
{
var mqttFactory = new MqttFactory();
// Due to security reasons the "default" endpoint (which is unencrypted) is not enabled by default!
var mqttServerOptions = mqttFactory.CreateServerOptionsBuilder().WithDefaultEndpoint().Build();
var server = mqttFactory.CreateMqttServer(mqttServerOptions);
await server.StartAsync();
return server;
}
}