Temperature Monitor

var http = require('http'); var url = require('url'); var querystring = require('querystring'); var port = 3000; var server; var token = "P7zlANXN30KXQHaDzzjorQ=="; // token for var latestUpdateTime = ""; var currentTemp = "1"; var currentHum = "1"; var emailAddress = ""; var tempWarning = 40; var humWarning = 90; var saveJson = false; var saveJsonPath = "C:\\data.json"; var nodemailer = require('nodemailer'); var transporter = nodemailer.createTransport({ service: 'gmail', auth: { user: '', pass: '' } }); server = http.createServer((req, res) => { console.log("Request from " + req.connection.remoteAddress); var body = ""; var q = url.parse(req.url, true); var data = q.query; if (token == data.token && data.temp && data.hum) { latestUpdateTime = new Date(); currentTemp = data.temp; currentHum = data.hum; console.log("Updated."); console.log(">" + data.temp + "C " + data.hum + "% @ " + latestUpdateTime ); if(currentTemp >= tempWarning) { SendEmail("[TemperatureMonitor] Temperature Warning", "Temperature : " + currentTemp + " @ " + latestUpdateTime); } if(currentHum >= humWarning) { SendEmail("[TemperatureMonitor] Humidity Warning", "Humidity : " + currentHum + " @ " + latestUpdateTime); } if(saveJson) { SaveAsJson(); } } req.on('data', function (chunk) { body += chunk; }); req.on('end', function () { body = querystring.parse(body); res.statusCode = 200; if (data.format == "json") { res.setHeader('Content-Type', 'application/json;charset=utf8'); res.write("{"); res.write("\"key\":\"1\",\"label\":\"Server\","); res.write("\"temp\":\"" + currentTemp + "\",\"hum\":\"" + currentHum + "\",\"date\":\"" + latestUpdateTime + "\""); res.write("}"); res.end(""); } else { res.setHeader('Content-Type', 'text/html;charset=utf8'); res.write("Temperature Monitor") res.write("== Temperature Monitor =="); res.write("
"); res.write("TEMPERATURE : " + currentTemp + "
HUMIDITY : " + currentHum + "%
" + latestUpdateTime + "
"); res.write(""); res.end(""); } }); }); server.listen(port, () => { console.log('Listening on port ' + port); }); function SendEmail(subject, text) { var mailOptions = { from: '"Temperature Monitor" ', to: emailAddress, subject: subject, text: text }; transporter.sendMail(mailOptions, function(error, info){ if (error) { console.log(error); } else { console.log('Email sent: ' + info.response); } }); } function SaveAsJson() { var jsondata = "{" + "\"key\":\"1\",\"label\":\"Server\"," + "\"temp\":\"" + currentTemp + "\",\"hum\":\"" + currentHum + "\",\"date\":\"" + latestUpdateTime + "\"}"; var fs = require('fs'); fs.writeFile(saveJsonPath, jsondata, function(err) { if(err) { return console.log(err); } console.log("Saved."); }); }