app.js

//  ###############################################################################
//  #                                                                             #
//  #                      #### Mohammad Abdul Rafay   #####                      #
//  #                      #### 99marafay@gmail.com    #####                      #
//  #                      #### Github: rafay99-epic   #####                      #
//  #                      #### The App.js File        #####                      #
//  #                                                                             #
//  ###############################################################################

//Express is used to start the node server
const express = require("express");
// Default come with node js no need to install path.
const path = require("path");
//connection with database and fetching the connection file
const con = require("./database/connection");

const session = require("./session/session");
//adding the express session to the application.js session
// const session = require("express-session");

//Staring of the server
var app = express();

app.use(express.static("image"));

// Route to display static src images
app.get("/static", (req, res) => {
  res.render("static");
});

app.use(
  session({
    secret: "ABCDefg",
    resave: false,
    saveUninitialized: true,
  })
);

//this take two parameters __dirname is  a node js variable.
//THis will provide a path to current directory.
const publicDirectory = path.join(__dirname, "./public");

//To use all the public iibiaries we need to tell the server to use the files.
app.use(express.static(publicDirectory));

//passing the url from the website of any data type.
app.use(express.urlencoded({ extend: false }));
//this line of code will make sure that the data is comming in the form of json.
app.use(express.json());

//setting the template for the website using handle bars
app.set("view engine", "hbs");

//define route for the webpage
//All of the webpages will be called from the roter folder and the pages.js fill will run to call the pages.
app.use("/", require("./routes/pages"));

//fetching the aurth file
app.use("/auth", require("./routes/auth"));

//The is port number from which the server will run and website will operate.
const port_website= process.env.port || 5000; 
app.listen(port_website, () => {
  console.log("Node Server is running at port 8080");
});
// ##### This part of the server will run th hardware and will display data from hardware to the website.  ####

//Below This Are Socket.io Communication Donot Change Anything Except port
var http = require("http");
var fs = require("fs");
var index = fs.readFileSync("./views/view-parking.hbs");

const { SerialPort } = require("serialport");
const { ReadlineParser } = require("@serialport/parser-readline");
var port = new SerialPort({
  path: "COM4", //Change This Port Only
  baudRate: 9600,
  dataBits: 8,
  parity: "none",
  stopBits: 1,
});

const parser = port.pipe(new ReadlineParser({ delimiter: "\r\n" }));
port.pipe(parser);

parser.on("data", function (data) {
  // console.log(data);
});
var app = http.createServer(function (req, res) {
  res.writeHead(200, { "Content-Type": "text/html" });
  res.end(index);
});

const io = require("socket.io")(app);

parser.on("data", function (data) {
  // console.log("Received data from port: " + data);
  io.emit("data", data);
});
// const port_hardware= process.env.port || 3000;
//THis will be port number through which the derever for hardware will be Listening.
app.listen(3000, () => {
  console.log("The server for the hardware is working on port 3000");
});