https://github.com/lecrapouille/mqtt

[Lib][Version 0.2.0][Functional] MQTT Client (wrapper on the mosquitto lib)
https://github.com/lecrapouille/mqtt

mosquitto mqtt mqtt-client

Last synced: 3 days ago
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[Lib][Version 0.2.0][Functional] MQTT Client (wrapper on the mosquitto lib)

• Host: GitHub
• URL: https://github.com/lecrapouille/mqtt
• Owner: Lecrapouille
• License: mit
• Created: 2023-04-23T20:20:55.000Z (over 1 year ago)
• Default Branch: master
• Last Pushed: 2024-07-17T22:31:04.000Z (4 months ago)
• Last Synced: 2024-10-11T11:13:00.240Z (27 days ago)
• Topics: mosquitto, mqtt, mqtt-client
• Language: C++
• Homepage:
• Size: 27.3 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Changelog: ChangeLog
  • License: LICENSE

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README

        
# MQTT: Class wrapping MQTT mosquitto

A C++11 tiny wrapper class for a MQTT client based on the mosquitto implementation.

You will need small code to make your application running with a MQTT client.

- See https://github.com/eclipse/mosquitto

- See https://www.howtoforge.com/how-to-install-mosquitto-mqtt-message-broker-on-debian-11/

## Hello World example

- In a first Linux console, a subscriber will echo messages from our application. Type:

```

mosquitto_sub -h localhost -t "Output"

```

- In a second Linux console, compile and launch our application. Type:

```

cd example

g++ --std=c++11 -Wall -Wextra -I../include ../src/MQTT.cpp Example.cpp -o example `pkg-config --cflags --libs libmosquitto`

./example

```

You will see (may be different from your case):

```

Connected to MQTT broker with error code 0

Topic 1 subscribed. Granted QOS: 0

```

- In a third Linux console, a publisher will send messages to our application. Type:

```

mosquitto_pub -h localhost -t "Input" -m "Hello"

```

You will see:

- In the first console:

```

Hello back

```

- In the second console:

```

Received message 0: "Hello" from topic: "Input" size: 5 qos: 0

Message 2 published

```

Your C++ asynchronous MQTT client is functional :)