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Mosquitto (MQQT)/ZeroMQ gateway


MQTT is a lightweight publish/subscribe messaging protocol. Popular amongs Internet of Things (IoT) devices. Mosquitto is opensource MQTT broker and client library. A part of Eclipse IoT platform.

ZeroMQ is popular messaging library to connect various applications using enhanced sockets and communication patterns.

zmosq proxy

The zmosq proxy is actor maintaining MQTT client connection in a background. It allows users to connect to MQTT broker, subscribe to one or more topics and publish them as ZMTP messages.

Those messages have two frames [MQTT topic|MQTT payload]. Those are sent to zmosq pipe, so can be read from actor itself.

 +-------------+              +------------+             +-------------------+
 |             |              |            |             |                   |
 |             |    publish   |            |  subscribe  | Mosquitto client  |
 | MQTT client | ===========> | Mosquitto  | <=========  +-------------------+   inproc socket
 |             |              |   broker   |             | zmosq_server      |   [topic|payload]
 |             |              |            |             |                   | ==================>
 +-------------+              +------------+             +-------------------+
 |              MQTT protocol                                                 |  ZMTP protocol    |

How to build

git clone git://
cd mosquitto
mkdir build && cd build
cmake ..
make install
sudo ldconfig
cd ../../

git clone git://
git clone git://
for project in libzmq czmq; do
    cd $project
    ./configure && make check
    sudo make install
    sudo ldconfig
    cd ..

How to Help

Use zmosq in a real project.
Identify problems that you face, using it.
Work with us to fix the problems, or send us patches.

Ownership and Contributing

The contributors are listed in AUTHORS. This project uses the MPL v2 license, see LICENSE.

The contribution policy is the standard [](ZeroMQ C4.1 process). Please read this RFC if you have never contributed to a ZeroMQ project.

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