React—a popular JavaScript framework—boasts a number of developer-friendly tools that can help you quickly and efficiently turn your ideas into fully-functioning applications. If you already have a solid grasp of the essentials of full-stack JavaScript web development, this practical, project-based course can help you get acquainted with React. Follow Carl Peaslee as he walks through how to plan, configure, create, and deploy a scalable, full-stack React and Relay application. As Carl explains how to lay out a UX roadmap, construct the foundation of an application, implement authentication, and connect your app to a remote database, you can practice what you learn by building a site where users can play simple games. Topics include:

  • Installing local dependencies
  • Generating a starter project
  • Deploying to Heroku
  • Planning your development process
  • Using styled-components
  • Styling for mobile
  • Setting up models on Graphcool
  • Creating Relay mutations
  • Adding Relay to your authentication flow
  • Protecting routes with authentication

Table of Content


00_01. Welcome


00_02. What you should know

  • React
  • Relay, Styled components, Material-UI, React Router, Git, npm, and the command line
  • GitHub, Heroku, AuthO, Graphcool
  • Atom, Yarn, Chrome

00_03. Installing local dependencies

"dependencies": {
    "auth0-lock": "^10.11.0",
    "konva": "^1.3.0",
    "material-ui": "^0.16.7",
    "react": "^15.4.2",
    "react-dom": "^15.4.2",
    "react-konva": "^1.1.1",
    "react-relay": "^0.10.0",
    "react-relay-network-layer": "^1.3.9",
    "react-router": "^3.0.2",
    "react-router-relay": "^0.13.5",
    "react-tap-event-plugin": "^2.0.1",
    "styled-components": "^1.4.2"
  • create-react-app

1. Planning

Design overview of the app

  • MVP Core Features
    • Authenticated login
    • Play against a simple bot
    • Guess if opponent is human
    • Store game records
  • Ideas for Later
    • Integrate with Facebook
    • Play live against a person
    • Show users a leaderboard
    • Use a real machine learning API

Generating a starer project

  • Using create-react-app

Creating a Git repository

Preparing for Relay

Setting up React Router

Creating children routes

Implementing Material-UI

yarn add material-ui

Deploying to Heroku

heroku login
heroku create $APP_NAME --buildpack
heroku config:set GRAPHQL_ENDPOINT=

git push heroku master
heroku open



2. Deployment Environments

Planning our development process

  • 3 kinds of components
Containers Components Presentational
Connected to the store Manage their own state Don’t manage state (stateless)
Pass data to children Pass props to presentational components Change styling based on props


  • Template Container
    • Drawer
      • LoggingStuff
      • DrawerList
        • DrawerItem
    • Drawer Toggler
    • Header
    • View (of the game)
      • TicTacTocGame
        • Board
          • Square

Building a nav drawer

  • Create src\components\NavDrawer.js
  • add a placeholder for Login Container
  • create a new state open for the open prop of the drawer
  • create a onTouchTap event handler to toggle the open state
import <Link> from 'react-router'

Presentational components

yarn add styled-components

Using styled-components

import React from 'react'
import styled from 'styled-components'
import FloatingActionButton from 'material-ui/FloatingActionButton'
import Menu from 'material-ui/svg-icons/navigation/menu'

const StayVisible = styled.div`
    position: absolute;
    margin-left: ${(props) => ( ? `${props.width}px` : 'none'};
    transition: margin .2s

export const NavToggleButton = (props) => {
    return (
            <FloatingActionButton >

Styling for mobile


import {css} from 'styled-components'

export const media = {
    handheld: (...args) => css`
        @media (max-width: 800px) {
            ${ css(...args) }


import React from 'react'
import styled from 'styled-components'
import {media} from '../utils/media'

export const Header = styled.header`
    text-align: center;
    font-size: 2em;
    font-family: 'Roboto', sans-serif;

export const Container = styled.div`
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: auto;
    width: 80%;
    min-height: 80vh;
        width: 100%;

export const Main = (props) => {
    return (

3. App Functionality

Canvas setup

yarn add react-konva konva

Building boards

  • the state of component/TicTacToe.js
    • size: the .8 of window.innerHeight or window.innerWeight
    • rows: the rows of the board
    • unit: size /rows
  • Use react-konva to draw the board, which is a styled component
    • styled\TicTacToe.js: export Board component
    • import {Layer, Line} from 'react-konva'

Creating squares

Square functionality

Create all squares, and every time we clicked on them we could see the index of the square that we clicked on.

Building AI

  • Helper functions:
    • combos: the 2-d array of all the possible winning combination
    • winChecker: use Array.prototype.find to check if the gameState matches any of the combos
    • random: to generate a random integer
    • makeAiMove: take an open square and move there at random

Finishing the game

Profile page styles

  • Exercise file provided: src/styled/Profile.js
    • Container, Name, Game, ListHeader, GameList, GameRecord, Column, ColumnLabels
  • src/containers/Profile.js
    • defaultProps
    • layout:
            Column(Outcome, Guest, Guessed Correctly, Date )

Profile page records

  • Connect all this dummy data into our list
    • get records() :
  • layout:
      Column(Outcome, Guest, Guessed Correctly, Date )

4. Implementing Libraries

04_01. Authentication setup

04_02. Authentication class

04_03. Relay authorization headers

  • yarn add react-relay react-relay-network-layer react-router-relay
  • src/index.js
+ import Relay from 'react-relay'
+ import useRelay from 'react-router-relay'
- import {Router, browserHistory} from 'react-router'
+ import {Router, browserHistory, applyRouterMiddleware} from 'react-router'
+ import {RelayNetworkLayer, urlMiddleware} from 'react-relay-network-layer'
+ import {relayApi} from './config/endpoints'
+ import auth from './utils/auth'

+ const createHeaders = () => {
+    let idToken = auth.getToken()
+    return idToken 
+       ? {Authorization: `Bearer ${idToken}` } 
+       : {}

04_04. Injecting the Relay network layer

    • This library does not support React Router v4, because React Router v4 does not provide the necessary integration points for efficient data fetching with Relay. Additionally, rendering performance will be better with React Router v2 than with React Router v3, as the link subscription logic in React Router v3 triggers unnecessary rerenders with Relay.

  • some code
          new RelayNetworkLayer([
                  url: (req) => relayApi,
              next => req => {
                  req.headers = {
                  return next(req)
          ],{disableBatchQuery: true})

04_05. Setting up models on Graphcool

  • new Model Game
    • id
    • createdAt
    • updatedAt
    • p1Guess, Emum(ROBOT, HUMAN), required
    • p1GuessCorrect: Boolean, required
  • new relationship
    • 1 User (related field: p1games) to many Game (related field: p1players)
    • name: Player1Games
    • Short description:
  • new relationship
    • 1 user (field: winner) to many game (field: winner)
    • name: UserWins
  • new field for User model
    • email: string, required
  • configure everyone’s permission for CRUD
  • configure Auth0 as the auth provider

04_06. Viewer queries and Relay containers

04_07. Creating user mutation

04_08. Sign-in mutations

  • src/mutations/SigninUser.js:
    • getVariables:
    • getMutation: signinUser
    • getFatQuery:
    • getConfigs:

04_09. Adding Relay to our authentication flow

  • src/utils/auth.js
import CreateUser from '../mutations/CreateUser'
import SigninUser from '../mutations/SigninUser'
  • Promise:
    • createUser: Relay.Store.commitUpdate
    • signinUser:
  • AuthService.authProcess: first try signinUser, and if failed ,then createUser

5. Creating Components

05_01. Creating an authentication button

  • src/components/AuthButton.js
import RaisedButton from 'material-ui/RaisedButton'

if (this.props.authenticated) {
  return ()
} else {
  return ()

  • pass props from routes -> template -> navDrawer -> NavButton
<!-- Template.js -->
<!-- NavDrawer.js -->

Creating a Turing test

Recording the game

Connecting a profile to Relay

Protecting routes with authentication


Next steps