An example project that implements following packages in a ASP.NET 5 MQTT Broker/Server:

• MQTTnet - v3.0.16 - Working
• MQTTnet - AspNetCore - AttributeRouting - v3.0.16 (Forked, see NuGet) - Working
• Saunter - v0.4.0 - Working (Newer versions will break documentation generation)

• Tested with MQTTnet.App as the client, configured as following:
  • Transport protocol: WebSocket
  • TLS version: no TLS
  • Host: localhost:5000/mqtt
  • Port: 5000
• A CatchAllController has been implemented, this will log all MQTT related messages going in/out of the MQTTnet Broker/Server
• A (MQTT) ExampleController has been implemented with following Publish Topics:
  • ExampleController/publish/<PostalCode>/temperature
    • PostalCode: 90210
    • Payload: int
  • ExampleController/publish/test
    • Payload: byte
• The MqttService has been implemented with following Subscribe Topic:
  • MqttService/subscribe/kiss
    • It will send a Payload every KissIntervalSeconds (Configurable in appsettings.json) for as long as there are clients connected.
    • Payload: $"MQTTnet hosted on {frameworkName} is still running at {DateTime.Now}!"
  • Here you can also configure various MQTT Broker related settings / handlers
• Startup is where most of the other Package configuration happens