Express Server

server.js

const express = require('express');
const app = express();
app.listen(3000);

const express = require('express');
const app = express();
app.listen(3000);

//sending response using express
app.get('/about', (req, res)=>{
    res.send("Hello guys!!");
})

//sending an index file as response using relative path
app.get('/about', (req, res)=>{
    res.sendFile('./about.html', {root:__dirname});
})

//Or we can pass absolute path
app.get('/about', (req, res)=>{
    res.sendFile('D:/Projects/server/about.html');
})

//redirect
app.get('/about-us', (req, res)=>{
    res.redirect('/about');
})

//This is a middleware function.This function will run for sure in a file if no case hits before this
app.use((req, res)=>{
    res.status(404).sendFile('./404.html', {root:__dirname})

})