how to extrapolate the parameters of the Json request

server.js

//Correctly Version 

//Import the necessary libraries/declare the necessary objects

var express = require("express");
var myParser = require("body-parser");
var app = express();

//Login 

app.use(myParser.urlencoded({extended : true}));

   app.post("/login", function(request, response) {
       
    var data = JSON.parse(Object.keys(request.body)[0]);
    var username = data.Username;
    var password = data.Password;
    console.log(username);
    console.log(password);

    });

//Application Listen on Port
app.listen(3000,function(){
    console.log("Application Server Start on Port: 3000");
})