A simple HTTP to MQTT bridge, for publishing messages.

The image contains a webserver and exposes port 5000 by default. To start the container type:

$ docker run -d -p 5000:5000 heleon19/http-mqtt-bridge

By default the http-mqtt-bridge will listen on port 5000 and connect to the localhost MQTT Broker.

Well, the image does not contain a local MQTT broker. Set the following environment variables accordingly to determine your MQTT broker.

• MQTT_HOST: Set this value to the URL to your MQTT broker, eg. mqtts://example.com
• MQTT_PORT: Set this value to the port to your MQTT broker, eg. 1883 (optional).
• MQTT_USERNAME: Set to your username for authentication on your MQTT broker.
• MQTT_PASSWORD: Set to your password accordingly to your username for authentication.
• MQTT_CLIENT_ID: Set your client ID (optional).
• HTTP_PORT: Set this value to change default HTTP port of 5000 (optional).

docker run -d \
    -p 5000:5000 \
    -e MQTT_HOST=mqtt://<mqtt-host> \
    -e MQTT_USERNAME=<username> \
    -e MQTT_PASSWORD=<password> \
    heleon19/http-mqtt-bridge

Setup and run the docker image ;-) .

You can use GET or POST requests, paramters can be passed as body or query.

• topic: Topic of the message.
• message: The message you want to send.
• qos: Quality of Service, default 0 (optional).
• retain: Send message as retain, default false (optional).

Example:

http://<ip-http-mqtt-bridge>:5000/publish?topic=myTopic&message=myMessage

This idea goes back to petkov's HTTP to MQTT bridge based on Node JS. Thank you very much for this simple and reliable piece of code! I just modified it!