HTTP Proxy Node Service for forwarding data into Azure Event Hubs HTTPS endpoint from a low power HTTP device

Server.js

var express = require('express');
var app = express();
var server = require('http').createServer(app);
var https = require('https');

function HttpPostToAzure(jsonData) 
{
  // Build the HTTP Post
  // Currently using hardcoded auth string, this auth string could come via the device
  var post_options = 
  {
      host: 'YOUR-NAMESPACE.servicebus.windows.net',
      port: 443,
      path: 'YOUR-PATH/messages',
      method: 'POST',
      headers: {
          'User-Agent': 'NodeJS-Proxy',
          'Content-Type': 'application/json; charset=utf-8',
          'Authorization': 'SharedAccessSignature sr=ADD-YOU-SAS-HERE',
          'Content-Length': Buffer.byteLength(jsonData)
      }
  };

  // Set up the request
  var post_req = https.request(post_options, function(res) 
  {
      res.setEncoding('utf8');
      res.on('data', function (chunk) {
          console.log('Response: ' + chunk);
      });
  });

  // post the data
  post_req.write(jsonData);
  post_req.end();
}

var port = 4000;

server.listen(port, function () 
{
  console.log('Server listening at port %d', port);
});

// HTTP Post Listener
app.post('/recv', function (req, res) 
{
    var body = '';
    req.on('data', function (data) {
        body += data;
    });

   req.on('end', function () 
   {
      console.log(body);
      HttpPostToAzure(body);
   });

   res.writeHead(200);
   res.end();
});