Zapier is a web service that automates data flow between over 500 web apps, including MailChimp, Salesforce, GitHub, and Trello.
Imagine building a workflow (or a "Zap" as we call it) that triggers when a user fills out your...
At Zapier, we make a lot of outbound API requests. Almost 500 per second, to be exact. That means we spend a long time waiting for those APIs to get back to us—particularly if a popular service is experiencing issues. In fact, if you were to add up all...
At Zapier, we like to test claims against facts.
With that in mind, we recently partnered with our friends at Typeform to validate the proclamation of the Zapier Developer Platform: "Make your app stickier than honey." That is, when an app integrates with Zapier (in effect, integrating with over 400...
If you haven't used React at all, you're in the right place. If you have used React, but you've run into some confusing edges, you're still in the right place. This guide covers all the...
One of the best aspects of Zapier's company culture is that the whole team does customer support. On top of that, we eat our own dog food—the Zapier team relies on many Zaps. Together, these practices give each teammate a stake in our customers' concerns, and they often...
Back in January, we launched a new version of the Developer Platform – the place where companies can add their APIs to Zapier. Part of that project involved converting the existing views – standard Django forms – into Backbone.js views powered by a yet-to-be-written API. It was a fun...
Security of user data and communication is of utmost importance to Zapier. In pursuit of the best possible security for our service, we welcome responsible disclosure of any vulnerability you find in Zapier. Principles of responsible disclosure include, but are not limited to:

Lately, I've been working on a number of improvements to our continuous integration setup here at Zapier. It's a delicious combination of Jenkins, Docker and the Github Commit API that anyone can accomplish with a little work!
Before delving into our continuous integration (CI) setup, it...
We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. ~Donald Knuth
It is unwise to embark on an optimization quest without first considering the famous quote by Knuth. However, sometimes that quick and hacky O(N^2) code you...
def make_pie(self, ingredients): print '******WHAT IS GOING ON HERE******' print ingredients self.oven.preheat() print self.oven.temperature
Is the above code snippet similar to your tried-and-true debugging techniques? Yea, that used to be me too. Honestly, it's not so bad. Slap in some prints, run...