The first thing we need to do is give our app an iOS App ID. In the Apple Developer portal at https://developer.apple.com, select Certificates, Identifiers & Profiles:
Once you are in the portal to manage your Certificates, Identifiers, & Profiles, select the option for App IDs, then press the add button in the upper-right corner:
This will take you to a page that allows you to register an App ID. Give it a name (without special characters) and then decide whether you'll give the app an Explicit App ID or Wildcard App ID, followed ...
