ping

Proof of concept for doing RESTful requests in the background of an iOS device, initialized by a server using the Apple Push Notification service.

Get started

• run these commands in the root directory:
  • cd ping-server
  • npm install
  • npm start
• go to https://documenter.getpostman.com/view/3932141/collection/RW89LpLo and open the requests in Postman
• run this command using a new terminal in the root directory:
  • open ping-ios/ping.xcodeproj/
• open RestController.swift and update let ip = "http://123.456.7.89:3000" with your server ip address

Note: You can get your IP in the MacOS menu: Wi-Fi -> 'Open Network Preferences' -> 'Advanced' -> 'TCP/IP' -> 'IPv4 Address'

• in Xcode, run the iOS app on a physical device (cmd + R)
• copy the apn device token in the Xcode console and paste it in the token header in the Postman push request

You should now be running the iOS app and the server and you should be able to run requests on the server using Postman. When you run the push request the server will use APNs to send a notification to the iOS app. The app will then call pushRegistry(_:didReceiveIncomingPushWith:for:completion:) that in turn should send a ping request to the server. The server should respond and the request will return data that can be parsed to an OkResponse (see OkResponse.swift in the iOS project files). The RestController should then call onPing() on its singleton and the AppDelegate should write AppDelegate pushRegistry(_:didReceiveIncomingPushWith:for:completion:) onPing to the console in its onPing handler.