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Dara Hayes
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Jul 11, 2019
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| const fs = require('fs') | ||
| const path = require('path') | ||
| const session = require('express-session') | ||
| const Keycloak = require('keycloak-connect') | ||
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| function configureKeycloak(app, graphqlPath) { | ||
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| const keycloakConfig = JSON.parse(fs.readFileSync(path.resolve(__dirname, './config/keycloak.json'))) | ||
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| const memoryStore = new session.MemoryStore() | ||
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| app.use(session({ | ||
| secret: process.env.SESSION_SECRET_STRING || 'this should be a long secret', | ||
| resave: false, | ||
| saveUninitialized: true, | ||
| store: memoryStore | ||
| })) | ||
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| const keycloak = new Keycloak({ | ||
| store: memoryStore | ||
| }, keycloakConfig) | ||
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| // Install general keycloak middleware | ||
| app.use(keycloak.middleware({ | ||
| admin: graphqlPath | ||
| })) | ||
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| // Protect the main route for all graphql services | ||
| // Disable unauthenticated access | ||
| app.use(graphqlPath, keycloak.middleware()) | ||
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| return { keycloak } | ||
| } | ||
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| module.exports = { | ||
| configureKeycloak | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| const express = require('express') | ||
| const { PubSub } = require('graphql-subscriptions') | ||
| const { execute, subscribe } = require('graphql') | ||
| const { SubscriptionServer } = require('subscriptions-transport-ws') | ||
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| const { ApolloServer, gql } = require('apollo-server-express') | ||
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| const { configureKeycloak } = require('./common') | ||
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| const { | ||
| KeycloakContext, | ||
| KeycloakSubscriptionContext, | ||
| KeycloakTypeDefs, | ||
| KeycloakSchemaDirectives, | ||
| KeycloakSubscriptionHandler | ||
| } = require('../') | ||
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| const app = express() | ||
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| const graphqlPath = '/graphql' | ||
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| // perform the standard keycloak-connect middleware setup on our app | ||
| // return the initialized keycloak object | ||
| const { keycloak } = configureKeycloak(app, graphqlPath) | ||
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| const pubsub = new PubSub() | ||
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| // set up the pubsub to publish a message every 2 seconds | ||
| const TOPIC = 'HELLO' | ||
| setInterval(() => { | ||
| pubsub.publish(TOPIC, { testSubscription: `tesing... ${Date.now()}`}) | ||
| }, 2000) | ||
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| const typeDefs = gql` | ||
| type Query { | ||
| hello: String! | ||
| } | ||
| type Subscription { | ||
| testSubscription: String! | ||
| } | ||
| ` | ||
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| const resolvers = { | ||
| Query: { | ||
| hello: (obj, args, context, info) => { | ||
| return `Hello world` | ||
| } | ||
| }, | ||
| Subscription: { | ||
| testSubscription: { | ||
| subscribe: () => pubsub.asyncIterator(TOPIC) | ||
| } | ||
| } | ||
| } | ||
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| const server = new ApolloServer({ | ||
| typeDefs: [KeycloakTypeDefs, typeDefs], | ||
| schemaDirectives: KeycloakSchemaDirectives, | ||
| resolvers, | ||
| context: ({ req }) => { | ||
| return { | ||
| kauth: new KeycloakContext({ req }) | ||
| } | ||
| } | ||
| }) | ||
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| server.applyMiddleware({ app }) | ||
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| const port = 4000 | ||
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| const httpServer = app.listen({ port }, () => { | ||
| console.log(`🚀 Server ready at http://localhost:${port}${server.graphqlPath}`) | ||
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| // Initialize the keycloak subscription handler passing in our keycloak instance | ||
| const keycloakSubscriptionHandler = new KeycloakSubscriptionHandler({ keycloak }) | ||
| new SubscriptionServer({ | ||
| execute, | ||
| subscribe, | ||
| schema: server.schema, | ||
| onConnect: async (connectionParams, websocket, connectionContext) => { | ||
| const token = await keycloakSubscriptionHandler.onSubscriptionConnect(connectionParams) | ||
| return { | ||
| kauth: new KeycloakSubscriptionContext(token) | ||
| } | ||
| } | ||
| }, { | ||
| server: httpServer, | ||
| path: graphqlPath | ||
| }) | ||
| }) | ||
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