How to redirect incoming URL requests by adding additional parameters

Question

Problem: I get an incoming HTTP request to my server application. The request is something like this : http://example.com?id=abc. I need to parse this request, patch additio

Answer 1

This is a classical error when coming to the async world. You don't return the value of the file, you pass a callback as a parameter and execute it with the end value like so:

function proxyUrl(id, cb) {
  http.request(options, function(res) {
    // do stuff
    res.on('data', function (chunk) {
      temp = temp.concat(chunk);
    });
    res.on('end', function(){
      // instead of return you are using a callback function
      cb(temp);
    });
}

function onRequest(req, res) {
  // do stuff
  proxyUrl(id, function(htmlContent) {
    // you can write the htmlContent using req.end here
  });
}

http.createServer(onRequest).listen(8888);