├── .editorconfig ├── .gitignore ├── README.md ├── package-lock.json ├── package.json ├── public ├── favicon.ico ├── index.html └── manifest.json └── src ├── App.js ├── Auth.js ├── index.css ├── index.js └── serviceWorker.js /.editorconfig: -------------------------------------------------------------------------------- 1 | # Editor configuration, see http://editorconfig.org 2 | root = true 3 | 4 | [*] 5 | charset = utf-8 6 | indent_style = space 7 | indent_size = 2 8 | insert_final_newline = true 9 | trim_trailing_whitespace = true 10 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # See https://help.github.com/articles/ignoring-files/ for more about ignoring files. 2 | 3 | # dependencies 4 | /node_modules 5 | /.pnp 6 | .pnp.js 7 | 8 | # testing 9 | /coverage 10 | 11 | # production 12 | /build 13 | 14 | # misc 15 | .DS_Store 16 | .env.local 17 | .env.development.local 18 | .env.test.local 19 | .env.production.local 20 | 21 | npm-debug.log* 22 | yarn-debug.log* 23 | yarn-error.log* 24 | 25 | # webstorm files 26 | .idea/ 27 | 28 | .env 29 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Handling Authentication in React with Context and Hooks 2 | 3 | Identity management in React can be quite confusing because there are multiple ways you can handle the user sessions in your application. This tutorial will show how you can handle identity management in React by creating a global state for your authentication details with Context and update these details with Hooks. 4 | 5 | Read more at: https://auth0.com/blog/handling-authentication-in-react-with–context-and-hooks/ 6 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "react-hooks-context-auth0", 3 | "version": "0.1.0", 4 | "private": true, 5 | "dependencies": { 6 | "auth0-js": "^9.10.2", 7 | "dotenv": "^8.0.0", 8 | "husky": "^2.2.0", 9 | "lint-staged": "^8.1.6", 10 | "prettier": "^1.17.0", 11 | "react": "^16.8.6", 12 | "react-dom": "^16.8.6", 13 | "react-scripts": "3.0.1" 14 | }, 15 | "scripts": { 16 | "start": "react-scripts start", 17 | "build": "react-scripts build", 18 | "test": "react-scripts test", 19 | "eject": "react-scripts eject" 20 | }, 21 | "eslintConfig": { 22 | "extends": "react-app" 23 | }, 24 | "browserslist": { 25 | "production": [ 26 | ">0.2%", 27 | "not dead", 28 | "not op_mini all" 29 | ], 30 | "development": [ 31 | "last 1 chrome version", 32 | "last 1 firefox version", 33 | "last 1 safari version" 34 | ] 35 | }, 36 | "husky": { 37 | "hooks": { 38 | "pre-commit": "lint-staged" 39 | } 40 | }, 41 | "lint-staged": { 42 | "src/**/*.{js,jsx,ts,tsx,json,css,scss,md}": [ 43 | "prettier --single-quote --write", 44 | "git add" 45 | ] 46 | }, 47 | "prettier": { 48 | "singleQuote": true 49 | } 50 | } 51 | -------------------------------------------------------------------------------- /public/favicon.ico: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/auth0-blog/auth0-hooks-context/c3d3a91edbb09c90f3eb0103d94c4f40d89d5cbf/public/favicon.ico -------------------------------------------------------------------------------- /public/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 12 | 13 | 22 | React App 23 | 24 | 25 | 26 |
27 | 37 | 38 | 39 | -------------------------------------------------------------------------------- /public/manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "short_name": "React App", 3 | "name": "Create React App Sample", 4 | "icons": [ 5 | { 6 | "src": "favicon.ico", 7 | "sizes": "64x64 32x32 24x24 16x16", 8 | "type": "image/x-icon" 9 | } 10 | ], 11 | "start_url": ".", 12 | "display": "standalone", 13 | "theme_color": "#000000", 14 | "background_color": "#ffffff" 15 | } 16 | -------------------------------------------------------------------------------- /src/App.js: -------------------------------------------------------------------------------- 1 | import React from 'react'; 2 | import Auth from './Auth'; 3 | 4 | const auth = new Auth(); 5 | const MeetupContext = React.createContext(); 6 | const UserContext = React.createContext(); 7 | 8 | const initialState = { 9 | meetup: { 10 | title: 'Auth0 Online Meetup', 11 | date: Date(), 12 | attendees: ['Bob', 'Jessy', 'Christina', 'Adam'] 13 | }, 14 | user: { 15 | name: 'Roy' 16 | } 17 | }; 18 | 19 | const reducer = (state, action) => { 20 | switch (action.type) { 21 | case 'subscribeUser': 22 | return { 23 | ...state, 24 | attendees: [...state.attendees, action.payload], 25 | subscribed: true 26 | }; 27 | case 'unSubscribeUser': 28 | return { 29 | ...state, 30 | attendees: state.attendees.filter( 31 | attendee => attendee !== action.payload 32 | ), 33 | subscribed: false 34 | }; 35 | case 'loginUser': 36 | return { 37 | ...state, 38 | isAuthenticated: action.payload.authenticated, 39 | name: action.payload.user.name 40 | }; 41 | default: 42 | return state; 43 | } 44 | }; 45 | 46 | const UserContextProvider = props => { 47 | const [state, dispatch] = React.useReducer(reducer, initialState.user); 48 | auth.handleAuthentication().then(() => { 49 | dispatch({ 50 | type: 'loginUser', 51 | payload: { 52 | authenticated: true, 53 | user: auth.getProfile() 54 | } 55 | }); 56 | }); 57 | return ( 58 | 64 | {props.children} 65 | 66 | ); 67 | }; 68 | 69 | const MeetupContextProvider = ({ user, ...props }) => { 70 | const [state, dispatch] = React.useReducer(reducer, initialState.meetup); 71 | return ( 72 | 76 | dispatch({ type: 'subscribeUser', payload: user.name }), 77 | handleUnSubscribe: () => 78 | dispatch({ type: 'unSubscribeUser', payload: user.name }) 79 | }} 80 | > 81 | {props.children} 82 | 83 | ); 84 | }; 85 | 86 | const App = () => ( 87 | 88 | 89 | {user => ( 90 | 91 | 92 | {meetup => ( 93 |
94 |

{meetup.title}

95 | {meetup.date} 96 |
97 |

{`Attendees (${meetup.attendees.length})`}

98 | {meetup.attendees.map(attendant => ( 99 |
  • {attendant}
    • 100 | ))} 101 |

    102 | {user.isAuthenticated ? ( 103 | !meetup.subscribed ? ( 104 | 107 | ) : ( 108 | 111 | ) 112 | ) : ( 113 | 114 | )} 115 |

    116 |
    117 |
    118 | )} 119 |     120 |     121 | )} 122 |     123 |     124 | ); 125 | 126 | export default App; 127 | -------------------------------------------------------------------------------- /src/Auth.js: -------------------------------------------------------------------------------- 1 | import auth0 from 'auth0-js'; 2 | 3 | export default class Auth { 4 | constructor() { 5 | this.auth0 = new auth0.WebAuth({ 6 | domain: process.env.REACT_APP_AUTH0_DOMAIN, 7 | audience: `https://${process.env.REACT_APP_AUTH0_DOMAIN}/userinfo`, 8 | clientID: process.env.REACT_APP_AUTH0_CLIENT_ID, 9 | redirectUri: 'http://localhost:3000/?callback', 10 | responseType: 'id_token', 11 | scope: 'openid profile' 12 | }); 13 | 14 | this.handleAuthentication = this.handleAuthentication.bind(this); 15 | this.signIn = this.signIn.bind(this); 16 | } 17 | 18 | signIn() { 19 | this.auth0.authorize(); 20 | } 21 | 22 | getProfile() { 23 | return this.profile; 24 | } 25 | 26 | handleAuthentication() { 27 | return new Promise((resolve, reject) => { 28 | this.auth0.parseHash((err, authResult) => { 29 | if (err) return reject(err); 30 | if (!authResult || !authResult.idToken) { 31 | return reject(err); 32 | } 33 | 34 | this.idToken = authResult.idToken; 35 | this.profile = authResult.idTokenPayload; 36 | // set the time that the id token will expire at 37 | this.expiresAt = authResult.idTokenPayload.exp * 1000; 38 | resolve(); 39 | }); 40 | }); 41 | } 42 | } 43 | -------------------------------------------------------------------------------- /src/index.css: -------------------------------------------------------------------------------- 1 | body { 2 | margin: 0; 3 | font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", 4 | "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", 5 | sans-serif; 6 | -webkit-font-smoothing: antialiased; 7 | -moz-osx-font-smoothing: grayscale; 8 | } 9 | 10 | code { 11 | font-family: source-code-pro, Menlo, Monaco, Consolas, "Courier New", 12 | monospace; 13 | } 14 | -------------------------------------------------------------------------------- /src/index.js: -------------------------------------------------------------------------------- 1 | import React from 'react'; 2 | import ReactDOM from 'react-dom'; 3 | import './index.css'; 4 | import App from './App'; 5 | import * as serviceWorker from './serviceWorker'; 6 | 7 | ReactDOM.render(, document.getElementById('root')); 8 | 9 | // If you want your app to work offline and load faster, you can change 10 | // unregister() to register() below. Note this comes with some pitfalls. 11 | // Learn more about service workers: https://bit.ly/CRA-PWA 12 | serviceWorker.unregister(); 13 | -------------------------------------------------------------------------------- /src/serviceWorker.js: -------------------------------------------------------------------------------- 1 | // This optional code is used to register a service worker. 2 | // register() is not called by default. 3 | 4 | // This lets the app load faster on subsequent visits in production, and gives 5 | // it offline capabilities. However, it also means that developers (and users) 6 | // will only see deployed updates on subsequent visits to a page, after all the 7 | // existing tabs open on the page have been closed, since previously cached 8 | // resources are updated in the background. 9 | 10 | // To learn more about the benefits of this model and instructions on how to 11 | // opt-in, read https://bit.ly/CRA-PWA 12 | 13 | const isLocalhost = Boolean( 14 | window.location.hostname === 'localhost' || 15 | // [::1] is the IPv6 localhost address. 16 | window.location.hostname === '[::1]' || 17 | // 127.0.0.1/8 is considered localhost for IPv4. 18 | window.location.hostname.match( 19 | /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/ 20 | ) 21 | ); 22 | 23 | export function register(config) { 24 | if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) { 25 | // The URL constructor is available in all browsers that support SW. 26 | const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href); 27 | if (publicUrl.origin !== window.location.origin) { 28 | // Our service worker won't work if PUBLIC_URL is on a different origin 29 | // from what our page is served on. This might happen if a CDN is used to 30 | // serve assets; see https://github.com/facebook/create-react-app/issues/2374 31 | return; 32 | } 33 | 34 | window.addEventListener('load', () => { 35 | const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`; 36 | 37 | if (isLocalhost) { 38 | // This is running on localhost. Let's check if a service worker still exists or not. 39 | checkValidServiceWorker(swUrl, config); 40 | 41 | // Add some additional logging to localhost, pointing developers to the 42 | // service worker/PWA documentation. 43 | navigator.serviceWorker.ready.then(() => { 44 | console.log( 45 | 'This web app is being served cache-first by a service ' + 46 | 'worker. To learn more, visit https://bit.ly/CRA-PWA' 47 | ); 48 | }); 49 | } else { 50 | // Is not localhost. Just register service worker 51 | registerValidSW(swUrl, config); 52 | } 53 | }); 54 | } 55 | } 56 | 57 | function registerValidSW(swUrl, config) { 58 | navigator.serviceWorker 59 | .register(swUrl) 60 | .then(registration => { 61 | registration.onupdatefound = () => { 62 | const installingWorker = registration.installing; 63 | if (installingWorker == null) { 64 | return; 65 | } 66 | installingWorker.onstatechange = () => { 67 | if (installingWorker.state === 'installed') { 68 | if (navigator.serviceWorker.controller) { 69 | // At this point, the updated precached content has been fetched, 70 | // but the previous service worker will still serve the older 71 | // content until all client tabs are closed. 72 | console.log( 73 | 'New content is available and will be used when all ' + 74 | 'tabs for this page are closed. See https://bit.ly/CRA-PWA.' 75 | ); 76 | 77 | // Execute callback 78 | if (config && config.onUpdate) { 79 | config.onUpdate(registration); 80 | } 81 | } else { 82 | // At this point, everything has been precached. 83 | // It's the perfect time to display a 84 | // "Content is cached for offline use." message. 85 | console.log('Content is cached for offline use.'); 86 | 87 | // Execute callback 88 | if (config && config.onSuccess) { 89 | config.onSuccess(registration); 90 | } 91 | } 92 | } 93 | }; 94 | }; 95 | }) 96 | .catch(error => { 97 | console.error('Error during service worker registration:', error); 98 | }); 99 | } 100 | 101 | function checkValidServiceWorker(swUrl, config) { 102 | // Check if the service worker can be found. If it can't reload the page. 103 | fetch(swUrl) 104 | .then(response => { 105 | // Ensure service worker exists, and that we really are getting a JS file. 106 | const contentType = response.headers.get('content-type'); 107 | if ( 108 | response.status === 404 || 109 | (contentType != null && contentType.indexOf('javascript') === -1) 110 | ) { 111 | // No service worker found. Probably a different app. Reload the page. 112 | navigator.serviceWorker.ready.then(registration => { 113 | registration.unregister().then(() => { 114 | window.location.reload(); 115 | }); 116 | }); 117 | } else { 118 | // Service worker found. Proceed as normal. 119 | registerValidSW(swUrl, config); 120 | } 121 | }) 122 | .catch(() => { 123 | console.log( 124 | 'No internet connection found. App is running in offline mode.' 125 | ); 126 | }); 127 | } 128 | 129 | export function unregister() { 130 | if ('serviceWorker' in navigator) { 131 | navigator.serviceWorker.ready.then(registration => { 132 | registration.unregister(); 133 | }); 134 | } 135 | } 136 | --------------------------------------------------------------------------------