Junya Ogura juno

Subdomaining Localhost with Rails 5

I've been following this blog post on how to set up an api-only Rails 5 application. One of the sections talks about creating a subdomain for your api

Rails.application.routes.draw do
  constraints subdomain: "api" do
    scope module: "api" do

Setting Up Private GitHub Repos with Bundler on Heroku

To get a private GitHub repo to work on Heroku, you can leverage the netrc buildpack in conjunction with the Heroku Ruby buildpack.

When setting up the Gemfile, make sure to use the https GitHub URL. This mechanism does not work with git+ssh.

gem "some_private_gem", git: "https://github.com/org/some_private_gem.git"

The standard names for indexes in PostgreSQL are:

{tablename}_{columnname(s)}_{suffix}

where the suffix is one of the following:

pkey for a Primary Key constraint;

key for a Unique constraint;

excl for an Exclusion constraint;

idx for any other kind of index;

Incremental DOM

Introducing Incremental DOM — Google Developers — Medium

Reactやvirtual-dom、Glimmer(Ember)などVirtual DOMの実装は色々あるが、これらのVirtual DOM実装には2つの問題がある

既存のテンプレート言語を利用していない(しにくい)
モバイルでのパフォーマンス、特にメモリに関しては大きすぎる

これらを解決するためにIncremental DOMと言うものを作っている(WIP)

How to build a notification feed using Stream

Introduction

In this tutorial we are going to show how easy it is to build a notification feed using GetStream.io. First of all, let's quickly introduce you to our fictional example app. It's called bug-your-friends.com and allows you interact with your friends, ping them, follow them or poke them. Here's a quick list of example interactions:

poke another user (eg. Thierry pokes Alessandra)
follow a user (eg. Tommaso follows Iris)
ping a user (eg. Josie pings Carolina)

Whenever a user is part of one of these interactions, we want to update his notification feed, update the number of unseen and unread

Folder Structure

Please note

While this gist has been shared and followed for years, I regret not giving more background. It was originally a gist for the engineering org I was in, not a "general suggestion" for any React app.

Typically I avoid folders altogether. Heck, I even avoid new files. If I can build an app with one 2000 line file I will. New files and folders are a pain.

	#!/usr/bin/env ruby
	# Extracted from traceroute gem + checking the presence of views as well

	require_relative './config/environment.rb'

	class Traceroute
	def initialize(app)
	@app = app
	end

	<html>
	<head>
	<link rel="canonical" href="<%= current_uri_sans_amp %>">
	</head>
	...
	</html>

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>JS Bin</title>
	<style id="jsbin-css">
	.smiley {
	display: inline-block;
	transform: rotateZ(30deg);
	transform-origin: bottom right;

	launchctl unload /Library/LaunchAgents/org.macosforge.xquartz.startx.plist
	sudo launchctl unload /Library/LaunchDaemons/org.macosforge.xquartz.privileged_startx.plist
	sudo rm -rf /opt/X11* /Library/Launch/org.macosforge.xquartz. /Applications/Utilities/XQuartz.app /etc/paths.d/XQuartz
	sudo pkgutil --forget org.macosforge.xquartz.pkg

	# Log out and log in