tuanpmt / react-native-mqttjs

Pure javascript Websocket MQTT client library for react-native

react-native-mqttjs

Features

This is 100% Pure javascript Websocket MQTT client library without any dependencies for react-native, use original react-native Websocket, port from: MQTT client library for Contiki - Prefer for any IoT Mobile applications using react-native

Support subscribing, publishing, authentication, will messages, keep alive pings and all 3 QoS levels (it should be a fully functional client).

Sampe as esp_mqtt for ESP8266 chip and should replace for react-native-mqtt

Install

npm i react-native-mqttjs --save

Basic usage

import { MqttClient } from 'react-native-mqttjs';

var mqtt = new MqttClient();
mqtt.connect('ws://test.mosquitto.org:8080');

mqtt.subscribe({'/topic1': 0}, () => {
  console.log('subscribe success topic1 with qos 0');
});
mqtt.subscribe([{'/topic2': 1}, {'/topic3': 2}], () => {
  console.log('subscribe success topic2 with qos 1, topic3 with qos 2');
});

mqtt.publish('/topic1', 'test', {qos: 0, retain: 0}, () => {
  console.log('publish success');
});

mqtt.addListener('message', (topic, data) => {
  console.log('data arrived, topic: ' + topic + ' - data: ' + data);
});

mqtt.addListener('connect', () => {
  console.log('mqtt connected');
});

API

• Options:
  • keepalive: 120 seconds
  • reschedulePings: reschedule ping messages after sending packets (default true)
  • clientId: 'mqttjs_' + Math.random().toString(16).substr(2, 8)
  • protocolId: 'MQTT' or 'MQIsdp'
  • clean: true, set to false to receive QoS 1 and 2 messages while offline
  • reconnectPeriod: 1000 milliseconds, interval between two reconnections
  • connectTimeout: 30 * 1000 milliseconds, time to wait before a CONNACK is received
  • username: the username required by your broker, if any
  • password: the password required by your broker, if any
  • will: a message that will sent by the broker automatically when the client disconnect badly. The format is:
    • topic: the topic to publish
    • payload: the message to publish
    • qos: the QoS
    • retain: the retain flag

License

MIT