Matt H matthlavacka

Install MongoDB on macOS Sierra

This procedure explains how to install MongoDB using Homebrew on macOS Sierra 10.12.
Official MongoDB install documentation: here

Install Homebrew

Installing Homebrew is effortless, open Terminal and enter :
$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

Encrypting text fields in Mongoose is easy using Node's built-in crypto module. You might want to do this if you're using MongoDB as a service (see the recent MongoHQ security breach); or, if you're storing OAuth tokens that could, in the wrong hands, screw with somebody's account on a 3rd party service. (Of course, you should never encrypt passwords: those should be hashed.)

Imagine you have a Mongoose model like that shown below, which is modified only slighly from the example on the MongooseJS homepage.

var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/test');

var User = mongoose.model('User', {
 name: String,

Install

Either copy the aliases from the .gitconfig or run the commands in add-pr-alias.sh

Usage

Easily checkout local copies of pull requests from remotes:

git pr 4 - creates local branch pr/4 from the github upstream(if it exists) or origin remote and checks it out
git pr 4 someremote - creates local branch pr/4 from someremote remote and checks it out

	import React, { useState, useEffect, useRef } from 'react'
	import { StripeProvider } from 'react-stripe-elements'

	type TProvider = React.FC<{ apiKey: string }>

	const AsyncStripeProvider: TProvider = props => {
	const { apiKey, children } = props
	const [stripe, setStripe] = useState<stripe.Stripe \| null>(null)
	const isMounted = useRef(false)
	const unmountFn = () => {

	# See list of docker virtual machines on the local box
	$ docker-machine ls
	NAME ACTIVE URL STATE URL SWARM DOCKER ERRORS
	default * virtualbox Running tcp://192.168.99.100:2376 v1.9.1

	# Note the host URL 192.168.99.100 - it will be used later!

	# Build an image from current folder under given image name
	$ docker build -t gleb/demo-app .

	/* HOC fundamentally is just a function that accepts a Component and returns a Component:
	(component) => {return componentOnSteroids; } or just component => componentOnSteroids;
	Let's assume we want to wrap our components in another component that is used for debugging purposes,
	it just wraps them in a DIV with "debug class on it".
	Below ComponentToDebug is a React component.
	*/

	//HOC using Class
	//it's a function that accepts ComponentToDebug and implicitly returns a Class
	let DebugComponent = ComponentToDebug => class extends Component {

	<html>
	<head>
	<title>Like Test</title>
	</head>
	<body>
	<div id="fb-root"></div>
	<a href="http://thefacebookdev.com/2012/12/facebook-like-button-events/">Original post</a>
	<h1>Hello World</h1>
	<div class="fb-like" data-send="false" data-layout="button_count" data-width="450" data-show-faces="false"></div>
	<script>

	[
	{
	"code": "AAA",
	"lat": "-17.3595",
	"lon": "-145.494",
	"name": "Anaa Airport",
	"city": "Anaa",
	"state": "Tuamotu-Gambier",
	"country": "French Polynesia",

	1. Build GraphQL server using `express-graphql` package.
	2. Configure `schema.js` file.
	3. Query for data.