var2

var2 is a platform which connects programs which talk different protocols. As the current state, it supports HTTP, MQTT and CoAP. The project aims to add support to other popular application layer protocols in the future.

Building

As the current state, the project is only built and tested under Linux systems. But this doesn't mean that you cannot build the project in Windows. Please check the prerequisites before trying.

Prerequisites

• GCC
• libuv v1.x | For installing libuv, visit libuv's GitHub repository.
• Node.js v4.6.0+
• npm v2.15.9+

Download the code from the GitHub repository.

To build the var2-core, run:

cd src
make

Install node_modules which var2 depends on:

cd src/translator
npm install

Usage

To start the var2, run the following binary and Node.js files:

• var2 in the directory src/
• http-server.js in the directory src/translator/
• coap-server.js in the directory src/translator/
• mqtt-broker.js in the directory src/translator/

Connect some HTTP, CoAP or MQTT clients with appropriate servers and publish, subscribe, GET and POST data.

NOTE

Due to some reasons, the url / topic which HTTP/CoAP/MQTT clients deals with should only be a number of range 0 to 2147483647. Alphabets and symbols should not be used in url / topic.

Acceptable Usage

• topic - 123456

• topic - 111111

• url - /123456

• url - /101010

Not Acceptable Usage

• topic - 123/456

• topic - 123/*

• topic - 123/+/456

• topic - 123/#/456

• url - 123/456

• url - 123/456/789

Documentation

The project is still in its initial stage. We'll try to document everything ASAP.

Contribution

We appreciate all forms of contributions. Check out the issues which are still open and not assigned in the GitHub repository.