I have been trying to add improved tvOS login using an Associated Domain and web credentials. In some places, I am seeing that the format is <TEAM_ID>.<BUNDLE_ID>, and in other places I am seeing <APP_ID>.<BUNDLE_ID>. I am having trouble getting both to work, but in order to properly troubleshoot, I want to make sure that I am using the correct identifier. Can someone give me a definitive answer? The documentation says app id, but I have seen Apple engineers in this forum say team id, and many other posts around the internet also saying team id.
I want to be clear about terms here:
- A bundle ID is how the system uniquely identifies your app. It’s typically in reverse DNS format, for example,
com.apple.iWork.Pages. - An App ID is composed of an App ID prefix and a bundle ID. For example,
74J34U3R6X.com.apple.iWork.Pages. - The App ID prefix is typically your Team ID, but iOS previously used to require unique App ID prefixes, where you allocate a prefix that’s different from your Team ID.
The apple-app-site-association file is expecting App IDs. There’s no ambiguity there. For any given App ID, the prefix is either the Team ID or a unique value.
There are plenty of ways to determine your App ID but my preferred option is:
-
Using Xcode, build your app for the device.
-
Using Terminal, dump its entitlements:
% codesign -d --entitlements - /path/to/your.app -
Look for the
application-identifierentitlement (com.apple.application-identifierfor Mac apps).
If your app is currently using a unique App ID prefix, there are good reasons to convert it to use your Team ID as the prefix. However, doing that is a bit tricky if you use the keychain. See App ID Prefix Change and Keychain Access.
Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"
