MQTT

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Introduction

MQTT is one of the 3 default protocols supported on the Virtual Private Mesh (the other 2 are HTTP (web) and SMTP (email).

The asynchronous nature of MQTT is used as to complement the synchronous nature of HTTP in communications between Console Devices.

If possible MQTT 3.1.1 should be used, although earlier MQTT versions 3 and 3.1 are also supported.

References

• GitHub - hobbyquaker/awesome-mqtt: A curated list of MQTT related stuff.
• GitHub - HighVoltages/MQTTwebapp: In this video we will make MQTT web application or MQTT web dashboard using HTML, CSS and Java Script using the Paho mqtt library for Java script. Also this video explains how we can use the MQTT broker over websockets.
• http://www.steves-internet-guide.com/mqtt-websockets

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1. Python MQTT

The paho library seem quite standard for MQTT in python.

1.1. paho

• Eclipse Paho | The Eclipse Foundation
• paho-mqtt · PyPI

Usage Example

• GitHub - djoamersfoort/mqtt-to-http-post: A tool that subscribes to a MQTT topic and sends a HTTP POST request to a endpoint for every received message.

2. PHP MQTT

There are a number of PHP MQTT libraries available.

2.1. php-mqtt

• GitHub - php-mqtt/client: An MQTT client written in and for PHP.

Usage Examples

• How to use MQTT in PHP | EMQ
• How To Use MQTT in PHP - DZone
• php-mqtt/client - Packagist

2.2. phpMQTT

• GitHub - bluerhinos/phpMQTT: a simple php class to connect/publish/subscribe to a MQTT broker

Usage Examples

• PHP MQTT Documentation - CloudAMQP

2.3. Other PHP MQTT Libraries:

• workerman/mqtt - Packagist
• simps/mqtt - Packagist

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MQTT Gateway

• https://docs.openmqttgateway.com/
• https://compatible.openmqttgateway.com/

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MQTT Logging

Storing MQTT Messages (Sensor Data) in a SQLite DataBase With Python

eDIY - Store messages from Mosquitto MQTT broker into SQL Database

mqtt-logger