├── .gitignore ├── images └── okta-app-settings.png ├── package.json ├── okta.js ├── index.js ├── README.md └── LICENSE /.gitignore: -------------------------------------------------------------------------------- 1 | node_modules 2 | .env 3 | -------------------------------------------------------------------------------- /images/okta-app-settings.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/oktadev/okta-express-graphql-example/HEAD/images/okta-app-settings.png -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "graphql-express", 3 | "version": "1.0.0", 4 | "description": "", 5 | "main": "index.js", 6 | "scripts": { 7 | "test": "standard", 8 | "start": "nodemon ." 9 | }, 10 | "keywords": [], 11 | "author": "", 12 | "license": "Apache 2.0", 13 | "dependencies": { 14 | "@okta/jwt-verifier": "0.0.12", 15 | "@okta/oidc-middleware": "^1.0.0", 16 | "@okta/okta-sdk-nodejs": "^1.2.0", 17 | "cors": "^2.8.4", 18 | "dotenv": "^6.0.0", 19 | "express": "^4.16.3", 20 | "express-graphql": "^0.6.12", 21 | "express-session": "^1.15.6", 22 | "graphql": "^14.0.2", 23 | "graphql-tag": "^2.9.2", 24 | "standard": "^12.0.1", 25 | "uuid": "^3.3.2" 26 | }, 27 | "devDependencies": { 28 | "nodemon": "^1.18.4" 29 | } 30 | } 31 | -------------------------------------------------------------------------------- /okta.js: -------------------------------------------------------------------------------- 1 | const session = require('express-session') 2 | 3 | const OktaJwtVerifier = require('@okta/jwt-verifier') 4 | const verifier = new OktaJwtVerifier({ 5 | clientId: process.env.OKTA_CLIENT_ID, 6 | issuer: `${process.env.OKTA_ORG_URL}/oauth2/default` 7 | }) 8 | 9 | const { Client } = require('@okta/okta-sdk-nodejs') 10 | const client = new Client({ 11 | orgUrl: process.env.OKTA_ORG_URL, 12 | token: process.env.OKTA_TOKEN 13 | }) 14 | 15 | const { ExpressOIDC } = require('@okta/oidc-middleware') 16 | const oidc = new ExpressOIDC({ 17 | issuer: `${process.env.OKTA_ORG_URL}/oauth2/default`, 18 | client_id: process.env.OKTA_CLIENT_ID, 19 | client_secret: process.env.OKTA_CLIENT_SECRET, 20 | redirect_uri: `${process.env.HOST_URL}/authorization-code/callback`, 21 | scope: 'openid profile' 22 | }) 23 | 24 | const initializeApp = (app) => { 25 | app.use(session({ 26 | secret: process.env.APP_SECRET, 27 | resave: true, 28 | saveUninitialized: false 29 | })) 30 | app.use(oidc.router) 31 | app.use('/access-token', oidc.ensureAuthenticated(), async (req, res, next) => { 32 | res.send(req.userContext.tokens.access_token) 33 | }) 34 | } 35 | 36 | module.exports = { client, verifier, initializeApp } 37 | -------------------------------------------------------------------------------- /index.js: -------------------------------------------------------------------------------- 1 | require('dotenv').config({ path: '.env' }) 2 | 3 | const express = require('express') 4 | const cors = require('cors') 5 | const graphqlHTTP = require('express-graphql') 6 | const gql = require('graphql-tag') 7 | const { buildASTSchema } = require('graphql') 8 | const uuid = require('uuid') 9 | 10 | const okta = require('./okta') 11 | 12 | const app = express() 13 | app.use(cors()) 14 | okta.initializeApp(app) 15 | 16 | const schema = buildASTSchema(gql` 17 | # Queries 18 | 19 | type Query { 20 | posts: [Post] 21 | post(id: ID): Post 22 | authors: [Person] 23 | author(id: ID): Person 24 | } 25 | 26 | type Post { 27 | id: ID 28 | author: Person 29 | body: String 30 | } 31 | 32 | type Person { 33 | id: ID 34 | posts: [Post] 35 | firstName: String 36 | lastName: String 37 | } 38 | 39 | # Mutations 40 | type Mutation { 41 | submitPost(input: PostInput!): Post 42 | deletePost(id: ID!): Boolean 43 | } 44 | 45 | input PostInput { 46 | id: ID 47 | body: String! 48 | } 49 | `) 50 | 51 | const PEOPLE = new Map() 52 | const POSTS = new Map() 53 | 54 | class Post { 55 | constructor (data) { Object.assign(this, data) } 56 | get author () { 57 | return PEOPLE.get(this.authorId) 58 | } 59 | } 60 | 61 | class Person { 62 | constructor (data) { Object.assign(this, data) } 63 | get posts () { 64 | return [...POSTS.values()].filter(post => post.authorId === this.id) 65 | } 66 | } 67 | 68 | const getUserId = async ({ authorization }) => { 69 | try { 70 | const accessToken = authorization.trim().split(' ')[1] 71 | const { claims: { uid } } = await okta.verifier.verifyAccessToken(accessToken) 72 | 73 | return uid 74 | } catch (error) { 75 | return null 76 | } 77 | } 78 | 79 | const saveUser = async (id) => { 80 | try { 81 | if (!PEOPLE.has(id)) { 82 | const { profile: { firstName, lastName } } = await okta.client.getUser(id) 83 | 84 | PEOPLE.set(id, new Person({ id, firstName, lastName })) 85 | } 86 | } catch (ignore) { } 87 | 88 | return PEOPLE.get(id) 89 | } 90 | 91 | const rootValue = { 92 | // Queries 93 | posts: () => POSTS.values(), 94 | post: ({ id }) => POSTS.get(id), 95 | authors: () => PEOPLE.values(), 96 | author: ({ id }) => PEOPLE.get(id), 97 | 98 | // Mutations 99 | submitPost: async ({ input }, { headers }) => { 100 | const authorId = await getUserId(headers) 101 | if (!authorId) return null 102 | 103 | const { id = uuid(), body } = input 104 | 105 | if (POSTS.has(id) && POSTS.get(id).authorId !== authorId) return null 106 | await saveUser(authorId) 107 | 108 | POSTS.set(id, new Post({ id, authorId, body })) 109 | 110 | return POSTS.get(id) 111 | }, 112 | deletePost: async ({ id }, { headers }) => { 113 | if (!POSTS.has(id)) return false 114 | 115 | const userId = await getUserId(headers) 116 | if (POSTS.get(id).authorId !== userId) return false 117 | 118 | POSTS.delete(id) 119 | 120 | if (PEOPLE.get(userId).posts.length === 0) { 121 | PEOPLE.delete(userId) 122 | } 123 | 124 | return true 125 | } 126 | } 127 | 128 | app.use('/graphql', graphqlHTTP({ schema, rootValue })) 129 | 130 | const port = process.env.PORT || 4000 131 | app.listen(port) 132 | console.log(`Running a GraphQL API server at localhost:${port}/graphql`) 133 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Example API Using GraphQL, Express, and Okta 2 | 3 | This is an example API, showing how to create a GraphQL endpoint in Node. The mutations are protected behind authentication provided by Okta. To follow along step-by-step, [check out the blog post](https://developer.okta.com/blog/2018/09/27/build-a-simple-api-service-with-express-and-graphql). 4 | 5 | **Prerequisites**: [Node.js](https://nodejs.org/en/). 6 | 7 | ## Getting Started 8 | 9 | To install this example application, run the following commands: 10 | 11 | ```bash 12 | git clone git@github.com:oktadeveloper/okta-express-graphql-example.git 13 | cd okta-express-graphql-example 14 | npm install 15 | ``` 16 | 17 | This will install a local copy of the project. You will need to set up some environment variables before the app will run properly. 18 | 19 | To integrate Okta's Identity Platform for user authentication, you'll first need to: 20 | 21 | * [Sign up for a free Okta Developer account](https://www.okta.com/developer/signup/) 22 | * You will get a URL similar to `https://dev-123456.oktapreview.com`. 23 | * Save this URL for later 24 | * You will also use this URL to login to your Okta account 25 | 26 | You will need to create an application in Okta: 27 | 28 | * Log in to your Okta account, then navigate to **Applications** and click the **Add Application** button 29 | * Select **Web** and click **Next** 30 | * Give your application a name (e.g. "GraphQL Express") 31 | * Change the **Base URI** to `http://localhost:4000/` and the **Login redirect URI** to `http://localhost:4000/implicit/callback`, then click **Done** 32 | * Save your **Client ID** and **Client Secret** for later 33 | 34 | Your Okta application should have settings similar to the following: 35 | 36 | ![Okta Application Settings](images/okta-app-settings.png) 37 | 38 | You will also need to create an API token in Okta: 39 | 40 | * Log in to your Okta account, then navigate to **API > Tokens** and click the **Create Token** button 41 | * Enter a name that will help you remember what this is used for (e.g. "GraphQL Express") 42 | * Save the provided **token value** for later 43 | * This will only be displayed once. If you lose it, you will need to create another API token 44 | 45 | Now create a file called `.env` in the project root and add the following variables, replacing the values with your own from the previous steps. 46 | 47 | **.env** 48 | ```bash 49 | HOST_URL=http://localhost:4000 50 | OKTA_ORG_URL=https://{yourOktaOrgUrl} 51 | OKTA_CLIENT_ID={yourClientId} 52 | OKTA_CLIENT_SECRET={yourClientSecret} 53 | OKTA_TOKEN={yourOktaToken} 54 | ``` 55 | 56 | You also need an app secret. One way to get a random `APP_SECRET` is to use the following commands, which will generate a random value and add it to your `.env` file. 57 | 58 | ```bash 59 | npm install -g uuid-cli 60 | echo "APP_SECRET=`uuid`" >> .env 61 | ``` 62 | 63 | Now you can run the GraphQL server with the following command: 64 | 65 | ```bash 66 | npm start 67 | ``` 68 | 69 | ## Usage 70 | 71 | Once you're up and running, you can get a nice user interface with built-in documentation by going to the [GraphQL Playground](https://graphqlbin.com) and entering in `http://localhost:4000/graphql`. Queries shouldn't require authentication, but if you want to run a mutation you'll need to authenticate first. 72 | 73 | #### Authenticating 74 | 75 | Go to . This should prompt you to log in to your Okta developer account if you haven't already. Once you're authenticated, the page should give you an access token that will look something like `eyJraW...j5gsJQ`, only much longer. 76 | 77 | In the GraphQL Playground, click on `HTTP HEADERS`, then modify it to include an `authorization` header with your token. It should look like this: 78 | 79 | ```json 80 | { 81 | "authorization": "Bearer eyJraW...j5gsJQ" 82 | } 83 | ``` 84 | 85 | **Note**: Again, the real token will be much longer. Just copy and paste it from the previous page. 86 | 87 | #### Example Queries 88 | 89 | Here are some examples to get you started. Feel free to play around with them and get creative. 90 | 91 | ##### Get all posts and their authors 92 | 93 | ```graphql 94 | query { 95 | posts { 96 | id 97 | author { 98 | id 99 | firstName 100 | lastName 101 | } 102 | body 103 | } 104 | } 105 | ``` 106 | 107 | ##### Get a single post, its author, and all that author's posts 108 | 109 | ```graphql 110 | query { 111 | post(id: 2) { 112 | id 113 | author { 114 | firstName 115 | posts { 116 | id 117 | body 118 | } 119 | } 120 | body 121 | } 122 | } 123 | ``` 124 | 125 | ##### Create a new post, returning info about it and yourself 126 | 127 | ```graphql 128 | mutation { 129 | submitPost(input: { 130 | body: "Hello, world!" 131 | }) { 132 | id 133 | body 134 | author { 135 | id 136 | firstName 137 | lastName 138 | posts { 139 | id 140 | body 141 | } 142 | } 143 | } 144 | } 145 | ``` 146 | 147 | ## Links 148 | 149 | This example uses the [Okta Node SDK](https://github.com/okta/okta-sdk-nodejs), the [Okta JWT Verifier](https://github.com/okta/okta-oidc-js/tree/master/packages/jwt-verifier), and the [Okta OIDC Middleware](https://github.com/okta/okta-oidc-js/tree/master/packages/oidc-middleware). 150 | 151 | ## Help 152 | 153 | Please [raise an issue](https://github.com/oktadeveloper/okta-express-graphql-example/issues) if you find a problem with the example application, or visit our [Okta Developer Forums](https://devforum.okta.com/). 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