New Domain

I will be moving this blog to a new domain and may lose some of the subscribers if you're using RSS for example.

I hope that the email list can help with the migration (modal + sidebar).

In the future, I also think about sending interesting articles and news about tech and books, but all the things that interest me :) Maybe that's something that you would find worth your effort to subscribe.

>>> Signup page <<<

How to simulate slow connection (developer proxy in Node.js)

Update: If you use Chrome then you can use "Throttling" so simulate slow network for all your assets. This should be easier than proxy.

  1. Toggle device mode toggle device mode icon off
  2. Choose Network type.
  3. Refresh the page 


For some time I wanted to use some proxy for development and testing of eg. slow internet connection, but it was hard to find something useful and free. I know there is Charles but buy it to use it at most one in a month is not for me.

I started thinking about Node.js, maybe I can write proxy for me? But fortunately I found one.

With this module I can write really short code to create slow server:

var http = require('http'),
    httpProxy = require('http-proxy');

httpProxy.createServer(function (req, res, proxy) {
  var buffer = httpProxy.buffer(req);

  setTimeout(function () {
    proxy.proxyRequest(req, res, {
      host: 'localhost',
      port: 8080,
      buffer: buffer
  }, 2000);

Result is proxy server running on port 8000 and returning all content from port 8080 after 2 seconds delay :)


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