├── .gitignore ├── package.json ├── index.js ├── public ├── index.html └── main.js ├── README.md └── LICENSE /.gitignore: -------------------------------------------------------------------------------- 1 | node_modules/ -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "vanilla-js", 3 | "version": "1.0.0", 4 | "description": "", 5 | "main": "index.js", 6 | "scripts": { 7 | "test": "echo \"Error: no test specified\" && exit 1" 8 | }, 9 | "keywords": [], 10 | "author": "Brandon Parise ", 11 | "license": "ISC", 12 | "dependencies": { 13 | "@okta/jwt-verifier": "^2.3.0", 14 | "body-parser": "^1.19.1", 15 | "express": "^4.17.2" 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /index.js: -------------------------------------------------------------------------------- 1 | const express = require('express') 2 | const bodyParser = require('body-parser') 3 | const OktaJwtVerifier = require('@okta/jwt-verifier') 4 | 5 | const oktaJwtVerifier = new OktaJwtVerifier({ 6 | issuer: 'https://{yourOktaDomain}/oauth2/default' 7 | }) 8 | 9 | const authenticationRequired = (req, res, next) => { 10 | if (!req.headers.authorization) { 11 | return next(new Error('Authorization header is required')) 12 | } 13 | let parts = req.headers.authorization.trim().split(' ') 14 | let accessToken = parts.pop() 15 | oktaJwtVerifier.verifyAccessToken(accessToken, 'api://default') 16 | .then(jwt => { 17 | req.user = { 18 | uid: jwt.claims.uid, 19 | email: jwt.claims.sub 20 | } 21 | next() 22 | }) 23 | .catch(err => { 24 | res.status(401).send(err.message) 25 | }) 26 | } 27 | 28 | const app = express() 29 | app.use(bodyParser.json()) 30 | app.use(express.static('public')) 31 | 32 | // store in memory 33 | let meals = [] 34 | 35 | app.get('/meals', authenticationRequired, (req, res) => { 36 | return res.send(meals) 37 | }) 38 | 39 | app.post('/meals', authenticationRequired, (req, res) => { 40 | let meal = req.body 41 | meal.id = Date.now() 42 | meals.push(meal) 43 | return res.send(meal) 44 | }) 45 | 46 | app.delete('/meals/:id', authenticationRequired, (req, res) => { 47 | let id = parseInt(req.params.id) 48 | const index = meals.map(o => o.id).indexOf(id) 49 | if (index !== -1) { 50 | meals.splice(index, 1) 51 | } 52 | return res.send() 53 | }) 54 | 55 | app.listen(8080, () => { 56 | console.log('App listening on port 8080!') 57 | }) 58 | -------------------------------------------------------------------------------- /public/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | Calorie Tracker 5 | 6 | 7 | 8 | 9 | 10 | 11 |
12 |
13 |

Calorie Tracker

14 |
Total Calories: -
15 |
16 | 17 |
18 | 42 |
43 | 44 | 45 | 46 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # A Vanilla JavaScript App with Authentication 2 | 3 | This example app shows how to use Vanilla JavaScript to build an app and add authentication with Okta. 4 | 5 | Please read [Add Authentication to Your Vanilla JavaScript App in 20 Minutes](https://developer.okta.com/blog/2018/06/05/authentication-vanilla-js) to see how this app was created. 6 | 7 | **Prerequisites:** [Node.js](https://nodejs.org/). 8 | 9 | > [Okta](https://developer.okta.com/) has Authentication and User Management APIs that reduce development time with instant-on, scalable user infrastructure. Okta's intuitive API and expert support make it easy for developers to authenticate, manage, and secure users and roles in any application. 10 | 11 | * [Getting Started](#getting-started) 12 | * [Links](#links) 13 | * [Help](#help) 14 | * [License](#license) 15 | 16 | ## Getting Started 17 | 18 | To install this example application, run the following commands: 19 | 20 | ```bash 21 | git clone https://github.com/oktadeveloper/okta-vanilla-js-example.git 22 | cd okta-vanilla-js-example 23 | ``` 24 | 25 | This will get a copy of the project installed locally. To install all of its dependencies and start the app, follow the instructions below. 26 | 27 | ```bash 28 | npm install 29 | node . 30 | ``` 31 | 32 | ### Setup Okta 33 | 34 | Log in to your Okta Developer account (or [sign up](https://developer.okta.com/signup/) if you don’t have an account) and navigate to **Applications** > **Add Application**. Click **Single-Page App**, click **Next**, and give the app a name you’ll remember. Click **Done**. 35 | 36 | #### Server Configuration 37 | 38 | Open `index.js` and replace `{YOUR_OKTA_DOMAIN}` in the following code block. 39 | 40 | ```js 41 | const oktaJwtVerifier = new OktaJwtVerifier({ 42 | issuer: 'https://{YOUR_OKTA_DOMAIN}/oauth2/default' 43 | }) 44 | ``` 45 | 46 | **NOTE:** The value of `{YOUR_OKTA_DOMAIN}` should be something like `dev-123456.oktapreview.com`. Make sure you don't include `-admin` in the value! 47 | 48 | #### Client Configuration 49 | 50 | For the client, set the `baseUrl`, `clientId`, and `authParams.issuer` in `public/main.js`. 51 | 52 | ```js 53 | this.signIn = new OktaSignIn({ 54 | baseUrl: 'https://{yourOktaDomain}', 55 | clientId: '{clientId}', 56 | redirectUri: 'http://localhost:8080', 57 | authParams: { 58 | issuer: 'https://{yourOktaDomain}/oauth2/default', 59 | pkce: false, 60 | responseType: ['id_token','token'] 61 | }, 62 | logo: '//placehold.it/200x40?text=Your+Logo', 63 | i18n: { 64 | en: { 65 | 'primaryauth.title': 'Sign in to Calorie Tracker' 66 | } 67 | } 68 | }) 69 | ``` 70 | 71 | ## Links 72 | 73 | This example uses the following libraries provided by Okta: 74 | 75 | * [Okta JWT Verifier](https://github.com/okta/okta-oidc-js/tree/master/packages/jwt-verifier) 76 | * [Okta Sign-In Widget](https://github.com/okta/okta-signin-widget) 77 | 78 | ## Help 79 | 80 | Please post any questions as comments on the [blog post](https://developer.okta.com/blog/2018/06/05/authentication-vanilla-js), or visit our [Okta Developer Forums](https://devforum.okta.com/). You can also email developers@okta.com if would like to create a support ticket. 81 | 82 | ## License 83 | 84 | Apache 2.0, see [LICENSE](LICENSE). 85 | -------------------------------------------------------------------------------- /public/main.js: -------------------------------------------------------------------------------- 1 | class App { 2 | constructor () { 3 | this.meals = [] 4 | document.getElementById('form-entry').addEventListener('submit', (event) => { 5 | event.preventDefault() 6 | this.addMeal({ 7 | title: document.getElementById('title').value, 8 | calories: parseInt(document.getElementById('calories').value) 9 | }) 10 | }) 11 | document.getElementById('sign-out').addEventListener('click', (event) => { 12 | event.preventDefault() 13 | this.signIn.authClient.signOut(err => { 14 | if (err) { 15 | return alert(`Error: ${err}`) 16 | } 17 | this.showSignIn() 18 | }) 19 | }) 20 | this.signIn = new OktaSignIn({ 21 | baseUrl: 'https://{yourOktaDomain}', 22 | clientId: '{clientId}', 23 | redirectUri: window.location.origin, 24 | authParams: { 25 | issuer: 'https://{yourOktaDomain}/oauth2/default', 26 | }, 27 | logo: '//placehold.it/200x40?text=Your+Logo', 28 | i18n: { 29 | en: { 30 | 'primaryauth.title': 'Sign in to Calorie Tracker' 31 | } 32 | } 33 | }) 34 | } 35 | async init () { 36 | this.signIn.authClient.token.getUserInfo() 37 | .then(user => { 38 | this.showMeals() 39 | }) 40 | .catch(() => { 41 | this.showSignIn() 42 | }) 43 | } 44 | async showMeals () { 45 | this.meals = await this.request('GET', '/meals') 46 | this.render() 47 | document.getElementById('sign-out').style.display = 'inline-block' 48 | document.getElementById('meals-container').style.display = 'block' 49 | this.signIn.remove() 50 | } 51 | showSignIn () { 52 | document.getElementById('sign-out').style.display = 'none' 53 | document.getElementById('meals-container').style.display = 'none' 54 | this.signIn.showSignInToGetTokens({ 55 | el: '#widget-container' 56 | }).then(tokens => { 57 | this.signIn.authClient.tokenManager.setTokens(tokens) 58 | this.showMeals() 59 | }) 60 | } 61 | request (method, url, data = null) { 62 | return new Promise((resolve, reject) => { 63 | let xhr = new XMLHttpRequest() 64 | xhr.open(method, url, true) 65 | xhr.setRequestHeader('Content-Type', 'application/json') 66 | const accessToken = this.signIn.authClient.getAccessToken() 67 | if (accessToken) { 68 | xhr.setRequestHeader('Authorization', `Bearer ${accessToken}`) 69 | } 70 | xhr.onload = () => { 71 | if (xhr.status === 200) { 72 | return resolve(JSON.parse(xhr.responseText || '{}')) 73 | } else { 74 | return reject(new Error(`Request failed with status ${xhr.status}`)) 75 | } 76 | } 77 | if (data) { 78 | xhr.send(JSON.stringify(data)) 79 | } else { 80 | xhr.send() 81 | } 82 | }) 83 | } 84 | async addMeal (data) { 85 | try { 86 | const meal = await this.request('POST', '/meals', data) 87 | document.getElementById('meals').appendChild(this.createMealElement(meal)) 88 | this.meals.push(meal) 89 | this.updateTotalCalories() 90 | } catch (err) { 91 | alert(`Error: ${err.message}`) 92 | } 93 | } 94 | async deleteMeal (id) { 95 | try { 96 | await this.request('DELETE', `/meals/${id}`) 97 | let index = this.meals.map(o => o.id).indexOf(id) 98 | this.meals.splice(index, 1) 99 | this.updateTotalCalories() 100 | } catch (err) { 101 | alert(`Error: ${err.message}`) 102 | } 103 | } 104 | updateTotalCalories () { 105 | let elTotal = document.getElementById('total') 106 | elTotal.textContent = this.meals.reduce((acc, o) => acc + o.calories, 0).toLocaleString() 107 | } 108 | createMealElement ({ id, title, calories }) { 109 | let el = document.createElement('li') 110 | el.className = 'list-group-item d-flex justify-content-between align-items-center' 111 | el.innerHTML = ` 112 |
113 | × 114 | ${title} 115 |
116 | ${calories} 117 | ` 118 | // when the 'x' delete link is clicked 119 | el.querySelector('a').addEventListener('click', (event) => { 120 | event.preventDefault() 121 | this.deleteMeal(id) 122 | el.remove() 123 | }) 124 | return el 125 | } 126 | render () { 127 | let fragment = document.createDocumentFragment() 128 | for (let meal of this.meals) { 129 | fragment.appendChild(this.createMealElement(meal)) 130 | } 131 | let el = document.getElementById('meals') 132 | while (el.firstChild) { 133 | el.removeChild(el.firstChild) // empty the
134 | } 135 | el.appendChild(fragment) 136 | this.updateTotalCalories() 137 | } 138 | } 139 | 140 | let app = new App() 141 | app.init() -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. Definitions. 8 | 9 | "License" shall mean the terms and conditions for use, reproduction, 10 | and distribution as defined by Sections 1 through 9 of this document. 11 | 12 | "Licensor" shall mean the copyright owner or entity authorized by 13 | the copyright owner that is granting the License. 14 | 15 | "Legal Entity" shall mean the union of the acting entity and all 16 | other entities that control, are controlled by, or are under common 17 | control with that entity. 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