DeviceCheck is a new iOS 11 API that gives you access to two bits of data per-device, per-developer that your associated server can use in its business logic. You can read more about DeviceCheck on our blog.
This project contains a fully working sample app and server to demonstrate DeviceCheck on iOS 11.
All you have to do in the iOS project is change the host to your NodeJS server's IP. You can do this in ViewController.swift:
let host = "http://192.168.0.10:3000" // Change to your NodeJS server IP:port
Getting the NodeJS server to work is a tiny bit more involved.
The NodeJS server is dependent on a few NodeJS libraries namely: 'jsonwebtoken', 'uuid', 'express', 'body-parser'. To install these dependencies you can use npm install, this will install the dependencies from the package.json.
In sampleServer.js you'll find a few configurable variables. Fill in your own IDs and key.
/****************** Set your values ******************/
var keyFileName = 'AuthKey_###.p8'; // Download from https://developer.apple.com/account/ios/authkey/
var keyId = "###"; // Can be found at: https://developer.apple.com/account/ios/authkey/
var teamId = "###"; // Can be found at: https://developer.apple.com/account/#/membership/
var port = 3000;
// Change this to true when you're app is on the App Store
var production = false;
/****************** End set your values ******************/
After you have configured your NodeJS server, you can run it with.
node sampleServer.js
After that your app will be able to talk to the NodeJS server.
iOS docs: https://developer.apple.com/documentation/devicecheck
Server side docs: https://developer.apple.com/documentation/devicecheck/accessing_and_modifying_the_per_device_data
WWDC 2017 - Session 702 - Privacy and Your Apps: https://developer.apple.com/videos/play/wwdc2017/702/?time=1444