How to Simulate Long HTTP Requests

By  on  

It happens less frequently these days but there are times when we need to accommodate for a HTTP request timing out. The service could be down, under heavy traffic, or just poorly coded, or any host of other issues.

Whenever I need to simulate a long HTTP request, I use a bit of PHP to make it happen:

<?php
        // Don't resolve this request for 5 seconds
        sleep(5);
        
        // A generic response
        echo 'This is the response!';

        // ... or hit a URL to make the case more realistic
        echo file_get_contents('https://website.tld/endpoint');
?>

With that script created, I make PHP start a server so I can make the request locally:

php -S localhost:8000

Now I can hit http://localhost:8000 and get the long request I want!

There are a number of ways you can accomplish these long form requests but this has always been a favorite of mine!

Recent Features

  • By
    How to Create a Twitter Card

    One of my favorite social APIs was the Open Graph API adopted by Facebook.  Adding just a few META tags to each page allowed links to my article to be styled and presented the way I wanted them to, giving me a bit of control...

  • By
    I&#8217;m an Impostor

    This is the hardest thing I've ever had to write, much less admit to myself.  I've written resignation letters from jobs I've loved, I've ended relationships, I've failed at a host of tasks, and let myself down in my life.  All of those feelings were very...

Incredible Demos

  • By
    Create Your Own Dijit CSS Theme with LESS CSS

    The Dojo Toolkit seems to just get better and better.  One of the new additions in Dojo 1.6 was the use of LESS CSS to create Dijit themes.  The move to using LESS is a brilliant one because it makes creating your own Dijit theme...

  • By
    Web Audio API

    The Web Audio API allows developers to load and decode audio on demand using JavaScript.  The more I evaluate awesome games for Firefox OS TVs, the more I get to learn about these APIs that I normally wouldn't touch.  The following is a very basic introduction to the WebAudio API...

Discussion

  1. That’s cool! Thanks for the tip.
    I could see having it take a query param to set the sleep time arbitrarily for different scenarios you’re simulating.

  2. Charlie

    Thanks David always love your content.
    Although in this particular case i fail to understand a practical use, could you share an example?

    thanks !

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!