tasmota-mqtt.js

const createError = require('http-errors');
const express = require('express');
const path = require('path');
const cookieParser = require('cookie-parser');
const logger = require('morgan');

//------------MQTT section------------//
const mqtt = require('mqtt')  // import mqtt connect
// mqtt configuration
const mqttConfig = {
  host: 'localhost',
  port: 1883,
  username: '',
  password: ''
}
const client  = mqtt.connect(mqttConfig) // create connection to mqtt broker
client.on('connect', function () {
  client.subscribe('tasmota/#', function (err) {
    if (!err) {
      client.publish('tasmota', 'Hello from application mqtt')
    }
  })
})
 
client.on('message', function (topic, message) {
  // message is Buffer
  console.log(message.toString())
})
//------------------------------------//

const indexRouter = require('./routes/index');

const app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

// Route endpoint
indexRouter(app,client)

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;