index.js

//for env
require("dotenv").config();

//node modules
const express=require("express");
const path=require("path");
const session = require('express-session');
const bodyParser=require("body-parser");
const MongoStore =require('connect-mongo');
const mongoSanitize = require('express-mongo-sanitize');
var xss = require('xss-clean')
const passport = require("./passport/setup");
//utils
const {AppError}=require("./util/util");

//routers
const signinrouter=require("./routes/signin");
const signuprouter=require("./routes/signup");
const userrouter=require("./routes/user");
const apirouter=require("./api/api");
const tokenrouter=require("./routes/token");
const adminrouter=require("./routes/admin");

//db
const dbConnect=require("./dbconnect");
//middleware
const errorHandler=require("./middleware/errorHandler");
//app
const app=new express()

//middleware's
app.use(xss())
app.use(mongoSanitize());
app.use(express.json());
app.use(bodyParser.urlencoded({extended:true}));
app.use(session({
				  secret: 'anbbduwwebsdnnasjsboolovesssbxzsjsobdkdsdn',
				  resave: false,
				  saveUninitialized: false,
				  cookie: { secure: false },
				  store: MongoStore.create( {mongoUrl:process.env.DBURL})
				})
		);

// Passport middleware
app.use(passport.initialize());
app.use(passport.session());

// setting value
app.set("view engine" ,"ejs");
app.set("views","./views");

let port=process.env.PORT || 3000;

//connecting to db
async function connect() {
	await dbConnect();
	console.log("Db sucessfully connected");
}
connect();

//routing
app.use(express.static(path.join(__dirname+"/views")))
app.use("/api",apirouter);
app.use("/signin",signinrouter);
app.use("/signup",signuprouter);
app.use("/user",userrouter);
app.use("/token",tokenrouter);
app.use("/admin",adminrouter);


//error handler
app.use(errorHandler);

app.get("*",(req,res)=>{
	res.sendFile(path.join(__dirname+"/views/index.html"));
})
//404 page 
app.get("/*",(req,res)=>{
	res.render("error");
})


process.on("uncaughtException",(e)=>{
	console.log("uncaughtException",e)
});

app.listen(port,()=>{console.log("Server started")});