AJ Livingston ajliv

Staff Software Engineer @Chewy-Inc, formerly @adult-swim, @FormidableLabs

ajliv / pipeline.yaml

Created September 2, 2020 22:06 — forked from mikebroberts/pipeline.yaml

Selectively triggering a GitHub sourced CodePipeline (only for one file)

	# CodePipeline by default runs an execution whenever any change is detected in the configured source repository
	# We can use a CodePipeline Webhook resource to filter such executions.
	#
	# This is a snippet that would be part of a CloudFormation template containing
	# a CodePipeline resource (AWS::CodePipeline::Pipeline), named CodePipeline in this case, and
	# assumes the GutHub OAuth token is available in the parameter GitHubOAuthToken.
	# Typically a CodePipeline Webhook only contains the $.ref filter to check for
	# the desired branch.
	# However we can add up to 4 more filters, each of which can query the incoming webhook payload from Github.
	# Such payloads are of the form:

ajliv / Instructions.md

Created May 22, 2019 17:33 — forked from pgilad/Instructions.md

Generate SSL Certificate for use with Webpack Dev Server (OSX)

Generate private key

$ openssl genrsa -out private.key 4096

openssl req -new -sha256 \

ajliv / nginx_s3_proxy.conf

Created April 25, 2018 17:39 — forked from josue/nginx_s3_proxy.conf

Simple Nginx Proxy to S3 Bucket Asset

	server {
	listen 80;
	listen 443 default_server ssl;

	ssl on;
	ssl_certificate /etc/ssl/certs/myssl.crt;
	ssl_certificate_key /etc/ssl/private/myssl.key;

	server_name *.example.com;
	root /var/www/vhosts/website;

ajliv / rate-limiter.js

Last active September 3, 2016 16:49

Rate limit tracker, adds a compounded penalty to the wait time with each offense over the limit

	import { action, computed, observable, reaction, when } from 'mobx';

	export default class RateLimiter {
	@observable forgiveness;
	@observable limit;
	@observable offenses = 0;
	@observable queue = [];
	@observable wait;

	@computed get compoundedPenalty() {

ajliv / index.html

Last active August 28, 2016 06:58

BrowserSync proxy server

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>BrowserSync Proxy Server</title>
	</head>
	<body>
	<h1>BrowserSync Proxy Server</h1>
	<ul>
	<li><a href="/api/" data-bare-link="true"><code>/api/</code></a> This page.</li>

ajliv / targetIsDescendant.js

Last active August 28, 2016 06:39

Determine if event target is a descendant of a DOM node

	/**
	* Determine if event target is a descendant of a DOM node
	* @param {Object} event - The event object
	* @param {Element} parent - The DOM node to check if event target is equal to or a descendant of
	* @return {Boolean}
	*/
	function targetIsDescendant(event, parent) {
	var node = event.target \|\| null;
	while (node !== null) {
	if (node === parent) return true;

ajliv / json2csv.js

Last active August 28, 2016 06:29

Convert a JSON object to CSV

	import { flatten, keys, startCase, uniq } from 'lodash';


	const json2csv = (rows = []) => {
	const columns = parseCSVColumns(rows);
	return [parseCSVHeaders(columns), ...rows.map(row => parseCSVRow(row, columns))].join('\n');
	};

	const escapeCSVString = (str = '') => {
	const value = str ? JSON.parse(JSON.stringify(str)) : '';

ajliv / trippy.css

Last active September 27, 2017 14:23

Trippy CSS animation

	.trippy {
	animation-name: animate-trippy;
	animation-duration: 1s;
	animation-timing-function: ease-in-out;
	animation-iteration-count: infinite;
	animation-direction: alternate
	}

	@keyframes animate-trippy {
	0% {

ajliv / preventWindowScroll.js

Last active August 28, 2016 06:30

Prevent window scroll on scrollable element

	// Usage:
	// var el = docuemnt.getElementById('scrollable-div');
	// el.addEventListener('wheel', preventWindowScroll, false);
	function preventWindowScroll(e) {
	var direction = e.deltaY < 0 ? 'up' : 'down';
	var el = e.currentTarget;
	var atTop = el.scrollTop <= 0;
	var atBottom = (el.scrollHeight - (el.clientHeight + el.scrollTop) <= 0);
	if ((direction === 'up' && atTop) \|\| (direction === 'down' && atBottom)) {
	e.preventDefault();