Another Example Server

gistfile1.txt

// Create a Server
var http = require('http');
var url = require('url');
var fs = require('fs');

var router = {
	"/" : function(request, response) {
		response.write('<form method="GET" action="/submit">Username: <input name="username" type="text"> <input type="submit"></form>');
		next();
	},
	"/users" : function (request, response) {
		showUsers(function(users) {
			response.write(users);
			next();
		});
	},
	"/submit" : function (request, response) {
		var user = request.parsedUrl.query["username"];
		console.log("Saving user")
		saveUser(user);
		response.write("Sup, " + user);
		next();
	}
}


var server = http.createServer(function (request, response) {
// Specify what happens when we get a request to that server

	//When a request comes in...

	//Parse the request
	requestParse(request);
	secureRequest(request);

	//Figure out what the user wants based on the URL they requested
	var bodyHandler = router[request.parsedUrl.pathname];
	if (bodyHandler) {
		response.statusCode = 200;
		response.setHeader("Content-Type", "text/html");
		//Based on what they want, generate some body text
		bodyHandler(request, response, function(request, response) {
			response.end();
		};);

		//Set the status of the response so we know whether or not we got the right thing, or an error
		
		//Send the response back
		console.log("Ended the response");
	} else {
		response.statusCode = 404;
		response.end("Oh no 404");
	}
	
});

server.listen(3000);
console.log("Listening on port 3000")

function saveUser (user) {
	fs.readFile("db.csv",function (err, data) {
		if (err) {
			console.log(err);
		} else {
			var newFileContents = data + user + "\n";
			fs.writeFile('db.csv', newFileContents, function (err) {
				if (err) {
					console.log(err);
				} else {
					console.log("saved user");
				}
			});
		}
	});
}

function showUsers (callback) {
	fs.readFile("db.csv",function (err, data) {
		if (err) {
			console.log(err);
		} else {
			callback(data)
		}
	});
}
var secureRequest = function(request) {
	//do something here
};
var requestParse = function(request) {
	console.log(request.url);
	request.parsedUrl = url.parse(request.url, true);
};

//If data has been submitted, write it to a file