nic_training/restHttp.js

Sample demos for training on nodejs

//restHttp.js
var http = require('http');
var fs = require('fs');
var parse = require('url').parse;
var join = require('path').join;

var contents = fs.readFileSync('MOCK_DATA.json', 'utf8');
//console.log(contents);

var jsonContent = JSON.parse(contents);
//console.log(jsonContent.length);

/*for (var i = 0; i < jsonContent.length; i++) {
	console.log(jsonContent[i].empName);
}*/

//Alternatively U could represent the json file as object.
var jsonData = require("./MOCK_DATA.json");
//console.log(jsonData);

var server = http.createServer(function(req, res){
	switch(req.method){
		case 'GET':
		var content = JSON.stringify(jsonData);
		res.write(content);
		res.end();
		break;
		case 'POST':
		var newEmp = {};
		req.on('data', function(val){
			newEmp = JSON.parse(val)
		});
		req.on('end', function(){
			jsonData.push(newEmp);
			res.end("Employee added successfully with count " + jsonData.length);
		})
		break;
		case 'DELETE':
	}
});

server.listen(1234);

var root = __dirname;

var clientApp = http.createServer(function(req, res){
	var url = parse(req.url);
	if(req.url =='favicon.ico'){
		console.log("Not processing this");
	}else{
		var path = root + '/' + url.pathname;
		var stream = fs.createReadStream(path);
		stream.on('data', function(file){
			res.write(file);
		})
		stream.on('error', (err)=>{
			res.writeHead(404,{'Content-type':'text/html'})
			res.write("<h2>Error Page</h2>");
			res.end();
		})
		stream.on('end', function(){
			res.end();
		})
	}
}).listen(2345);