Auth0 SSR Compatible Integration with Sapper

bash.sh

npm install --save express express-openid-connect

server.js

// See reddit post here https://www.reddit.com/r/sveltejs/comments/fqar1y/integrating_auth0_with_sapper_in_10_lines/

import sirv from 'sirv'
import express from 'express'
import compression from 'compression'
import * as sapper from '@sapper/server'
import { auth } from 'express-openid-connect'

const { PORT, NODE_ENV } = process.env
const dev = NODE_ENV === 'development'

express()
  .use(
    compression({ threshold: 0 }),
    sirv('static', { dev }),
    auth({
      required: false,
      auth0Logout: true,
      baseURL: 'http://localhost:3000',
      issuerBaseURL: 'https://your-hosted-url.auth0.com',
      clientID: 'your-client-id',
      appSessionSecret: 'your-session-secret'
    }),
    (req, res, next) => {
      return sapper.middleware({
        session: () => {
          return {
            isAuthenticated: req.isAuthenticated(),
            user: req.openid.user
          }
        }
      })(req, res, next)
    }
  )
  .listen(PORT, err => {
    if (err) console.log('error', err);
  });

~~appSessionSecret: OAUTH_CLIENT_SECRET ~~

with

appSession: {
      secret: "LONG_RANDOM_STRING"
    }

;-)