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//Loading external libraries
http = require('http');
fs = require('fs');
d3 = require('d3');
pyshell = require('python-shell');
path = require('path');
express = require('express');

server = http.createServer( function(req, res) {

    //console.dir(req.param);

    if (req.method == 'POST') {
        console.log("POST"); //print indicator of POST to stdout
        var body = ''; //beginning of text

        req.on('data', //request on data event
                function (data) {
                    body += data; //print the received data to body
                    console.log("Partial body: " + body); //log to stdout
                }
        );

        req.on('end', function () { //request on end of data receiving
            console.log("Body: " + body); //prints FULL body to stdout

            fs.writeFile("test.txt", body, function(err) {
                if(err) {
                    return console.log(err);
                }
                console.log("The file was saved!"); //if successful
            });
        });
        //send a response header to the request
        res.writeHead(200, {'Content-Type': 'text/html'});
        res.end('post received'); //full res (headers/body) sent; msg done
        //process data
        setInterval(function("test.txt") {}, 1000); //once every second for now


    } else { //not POST

        //console.log("GET");
        res.writeHead(200, {'Content-Type': 'text/plain'});
        res.end('Hello World\n');
        //var html = '<html><body><form method="post" action="http://localhost:3000">Name: <input type="text" name="name" /><input type="submit" value="Submit" /></form></body>';
        // var html = fs.readFileSync('index.html');
        // res.writeHead(200, {'Content-Type': 'text/html'});
        // res.end(html);
    }

});

port = 3007;
host = '0.0.0.0';
server.listen(port, host);
console.log('Listening at http://' + host + ':' + port);