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Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

They are the people who get things done. Effective Engineers produce results.

Adopt the Right Mindsets

Deploying a subfolder to GitHub Pages

Sometimes you want to have a subdirectory on the master branch be the root directory of a repository’s gh-pages branch. This is useful for things like sites developed with Yeoman, or if you have a Jekyll site contained in the master branch alongside the rest of your code.

For the sake of this example, let’s pretend the subfolder containing your site is named dist.

Step 1

Remove the dist directory from the project’s .gitignore file (it’s ignored by default by Yeoman).

Tutorial: Designing a GraphQL API

This tutorial was created by Shopify for internal purposes. We've created a public version of it since we think it's useful to anyone creating a GraphQL API.

It's based on lessons learned from creating and evolving production schemas at Shopify over almost 3 years. The tutorial has evolved and will continue to change in the future so nothing is set in stone.

In this gist I would like to describe an idea for GraphQL subscriptions. It was inspired by conversations about subscriptions in the GraphQL slack channel and different GH issues, like #89 and #411.

Conceptual Model

At the moment GraphQL allows 2 types of queries:

query
mutation

Reference implementation also adds the third type: subscription. It does not have any semantics yet, so here I would like to propose one possible semantics interpretation and the reasoning behind it.

	'use strict';

	/*
	* HTTP headers are case-insensitive. So 'Host' is a valid header, but so
	* is 'host' or 'hOst'. To make sure we don't miss a header we first lowerCase
	* all of them and then check for the lowercase version of the header
	*/
	const normaliseHeaders = (headers) => {
	const normalisedHeaders = {};
	const fields = Object.keys(headers);

	/**
	* @author ebidel@ (Eric Bidelman)
	* License Apache-2.0
	*/

	// Prints the size of each cache in the Cache Storage API and the overall bytes cached.

	async function getCacheStoragesAssetTotalSize() {
	// Note: opaque (i.e. cross-domain, without CORS) responses in the cache will return a size of 0.
	const cacheNames = await caches.keys();

	https://github.com/Netflix/falcor-path-utils/blob/master/lib/toTree.js

	[
	["list",{from:0,to:9],["name","rating"]],
	["list", "length"]
	]

	->

	{

	# put this in your .bash_profile
	if [ $ITERM_SESSION_ID ]; then
	export PROMPT_COMMAND='echo -ne "\033];${PWD##*/}\007"; ':"$PROMPT_COMMAND";
	fi

	# Piece-by-Piece Explanation:
	# the if condition makes sure we only screw with $PROMPT_COMMAND if we're in an iTerm environment
	# iTerm happens to give each session a unique $ITERM_SESSION_ID we can use, $ITERM_PROFILE is an option too
	# the $PROMPT_COMMAND environment variable is executed every time a command is run
	# see: ss64.com/bash/syntax-prompt.html

	#! /usr/bin/env node
	// I am ./bin/buildSitemap.js

	const path = require('path')
	const glob = require('glob')
	const fs = require('fs')

	const SITE_ROOT = process.env.SITE_ROOT \|\| 'https://www.actionherojs.com'
	const SOURCE = process.env.SOURCE \|\| path.join(__dirname, '..', 'pages', '/*/.js')
	const DESTINATION = process.env.DESTINATION \|\| path.join(__dirname, '..', 'static', 'sitemap.xml')

	git fetch --all
	git reset --hard origin/master
	git pull origin master