ptarjan

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.

sid24rane

var net = require('net');

// creates the server
var server = net.createServer();

//emitted when server closes ...not emitted until all connections closes.
server.on('close',function(){
  console.log('Server closed !');
});

Vestride

Encoding Video

Installing

Install FFmpeg with homebrew. You'll need to install it with a couple flags for webm and the AAC audio codec.

brew install ffmpeg --with-libvpx --with-libvorbis --with-fdk-aac --with-opus

LeCoupa

// Restify Server CheatSheet.
// More about the API: http://mcavage.me/node-restify/#server-api
// Install restify with npm install restify


// 1.1. Creating a Server.
// http://mcavage.me/node-restify/#Creating-a-Server


var restify = require('restify');

olitreadwell

photo credit (MARION SOLLETTY / FRANCETV INFO)

Paris' École 42 demonstrates an essential character trait of any would-be developer.

Stubbornness.

Call it determination, call it perseverance, it remains as the ability to continue working at a problem.

I allude to this experience as banging my head against the wall.

MattSurabian

redis-cli -h <HOST> -p <PORT> KEYS "<PATTERN>" | xargs -i% redis-cli -h <HOST> -p <PORT> DEL %

bluesmoon

Marsaglia-polar.js

This script generates random numbers along a Normal or Log-normal distribution using the Marsaglia polar method.

There are four functions you can use:

• normalRandom: Generate random numbers that follow a Normal distribution.
• normalRandomInRange: Generate random numbers that follow a Normal distribution but are clipped to fit within a range
• normalRandomScaled: Generate random numbers that follow a Normal distribution with a given mean and standard deviation
• lnRandomScaled: Generate random numbers that follow a Log-normal distribution with a given geometric mean and geometric standard deviation

llaine

#!/bin/bash
# @contact: darksioul6@gmail.com
# Enjoy 

if [[ ! -e "config" ]]; then
	echo "Entrez les informations correspondantes : "
	echo -ne  "Username : " ; read -r u 
	echo -ne  "Mot de passe : "  ; read -r p 
	echo -ne  "L'age minimum : "  ; read -r amin
	echo -ne  "L'age maximum : "  ; read -r amax

geoffgarside

#!/usr/bin/env ruby
require 'net/telnet'

prefix = ARGV.length > 1 ? ARGV[1] : nil
prefix_regexp = prefix && Regexp.new("\A#{prefix}")

cache_dump_limit = 100
localhost = Net::Telnet::new("Host" => "localhost", "Port" => 11211, "Timeout" => 3)
slab_ids = []
localhost.cmd("String" => "stats items", "Match" => /^END/) do |c|

komamitsu

    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
    <uses-permission android:name="android.permission.INTERNET"></uses-permission>