Setup node framework | Express

 First step to start with express is to install express in our project.

    > npm install express 

This command will add express dependency into package.json file and download packages from internet.

Let's create a new express server:

const express = require("express");

const app = express();

const PORT = 3000;

app.listen(PORT, function(){

    console.log("Server started on port "+PORT);

});

    Here is an error Cannot GET / becoz we do set the request or response from the server:

app.get("/", function(request, response){

    console.log(request);

});

We can see now all the request parameters in console.

To send the response to the client : 

app.get("/", function(req, res){

    res.send("Hello Express...");

});

Now we can see the output that is a response from the server on / location.

You can also send HTML as a response : 

app.get("/", function(req, res){

    res.send("<h1>Hello Express</h1>")

});

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