2.0.1 • Published 5 years ago

typed-async-mqtt v2.0.1

Weekly downloads
3
License
MIT
Repository
github
Last release
5 years ago

IMPORTANT: Make sure you handle rejections from returned promises because they won't crash the process

API

The API is the same as MQTT.js, except the following functions now return promises instead of taking callbacks

  • publish
  • subscribe
  • unsubscribe
  • end

Example

var MQTT = require("async-mqtt");

var client = MQTT.connect("tcp://somehost.com:1883");

// When passing async functions as event listeners, make sure to have a try catch block
client.on("connect", doStuff);

async function doStuff() {

	console.log("Starting");
	try {
		await client.publish("wow/so/cool", "It works!");
		// This line doesn't run until the server responds to the publish
		await client.end();
		// This line doesn't run until the client has disconnected without error
		console.log("Done");
	} catch (e){
		// Do something about it!
		console.log(e.stack);
		process.exit();
	}
}

Wrapping existing client

var AsyncClient = require("async-mqtt").AsyncClient;

var client = getRegularMQTTClientFromSomewhere();

var asyncClient = new AsyncClient(client);

asyncClient.publish("foo/bar", "baz").then(function(){
	console.log("We async now");
	return asyncClient.end();
});