This library is helping with handling mqtt topics. It was inspired by mqtt-regex and mqtt-emitter.
It supports wildcards (+ and #) - additionally you can use multiple # and the last is greedy.
Just install via npm and use it in your project.
I'm using es6 features of node.js, so it will only work with >= Node.js 7.x
Install the package via npm
npm install us-mqtt
Then you can use it in your project.
The matcher can test (true/false) or match a topic against a pattern.
const Mqtt = require('us-mqtt').Matcher;
var mqtt = Mqtt('#/+/#');
let test = mqtt.test ('foo/bar/baz/test');
//test is true;
let result = mqtt.match('foo/bar/baz/test');
//result is an array containing the matched wildcards:
// # + #
// ['foo','bar','baz/test']const MqttEmitter = require('us-mqtt').Emitter;
var emitter = new MqttEmitter();
emitter.on ('foo/+/#', function (match, value1, value2){
console.log ('I was called for topic %s that was matching %s', match.topic, match.pattern);
console.log ('The wildcards were', match.params);
console.log ('First value', value1);
console.log ('Second value', value2);
});
emitter.emit('foo/bar/baz/test', 'Hello', 'World');Test a coded with mocha. So just run mocha.
We use SemVer for versioning. For the versions available, see the tags on this repository.
This project is licensed under the MIT License - see the LICENSE.md file for details
- Thanks rangermauve for inspiration.