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Scaling your API with rate limiters

The following are examples of the four types rate limiters discussed in the accompanying blog post. In the examples below I've used pseudocode-like Ruby, so if you're unfamiliar with Ruby you should be able to easily translate this approach to other languages. Complete examples in Ruby are also provided later in this gist.

In most cases you'll want all these examples to be classes, but I've used simple functions here to keep the code samples brief.

Request rate limiter

This uses a basic token bucket algorithm and relies on the fact that Redis scripts execute atomically. No other operations can run between fetching the count and writing the new count.

@paulallies
paulallies / gist:0052fab554b14bbfa3ef
Last active November 12, 2023 23:00
Remove node_modules from git repo
#add 'node_modules' to .gitignore file
git rm -r --cached node_modules
git commit -m 'Remove the now ignored directory node_modules'
git push origin <branch-name>
@jdarling
jdarling / Object.observe.poly.js
Created November 30, 2012 02:00
Initial Object.observe polyfill/shim trying to be compliant
/*
Migrated to: https://github.com/jdarling/Object.observe
Tested against Chromium build with Object.observe and acts EXACTLY the same,
though Chromium build is MUCH faster
Trying to stay as close to the spec as possible,
this is a work in progress, feel free to comment/update
http://wiki.ecmascript.org/doku.php?id=harmony:observe
// Simple debug output helper
function debug(message) {
Ti.API.info(message);
}
/**
*
* @param thisControl The control you wish to dump
* @param goDeep boolean Do you want deep introspection
* @param incFuncs boolean Do you want to include functions in the output when going deep