[iOS] how to access the APNs Token

Question

Is there any method I can call to access the APNs token?

While testing on the simulator, requesting permissions after a hard device reset, onRegister does not appear to be called, and invoking requestPermissions only returns an object containing permissions. My question is:

What method(s), if any, can I call on a simulator or device to reliably return the APNs token once it exists, and what form do those return values take? And is there any way to access the token outside of onRegister?

e.g. something like requestPermissions().then(results => console.log('token: ', results.token))

Thanks!

[santiagogarza]

+1 How do we get the token sometime after onRegister gets triggered?

What if a user denies the system prompt and then later enables push notifications in settings? How do we get the token then? Or what if registering the token with the push notification provider fails? There must be a getToken method we can call at any point, right?

The Apple documentation recommends we get the token each time as opposed to storing it:

Important

Never cache device tokens in local storage. APNs issues a new token when the user restores a device from a backup, when the user installs your app on a new device, and when the user reinstalls the operating system. If you ask the system to provide the token each time, you are guaranteed to get an up-to-date token.

[th0r0nd0r]

Thanks for the answers, everyone.

@vinagrito-getpocketful my understanding and the testing I’ve done so far lead me to believe that onRegister is only invoked after allowing permissions from the system prompt, or allowing them from settings for the first time if the prompt was denied. We are currently calling PushNotificaion.configure on every app open, which does allow us to define a new, arbitrary callback to pass to the onRegister method, but it doesn’t force onRegister to fire and give access to the token.

So that answers @santiagogarza’s first question, however we’ve just tested and found that if the initial onRegister method fails due to network issues, it will never fire again. Maybe there’s a way to solve this with onRegistrationError or some other method but I don’t know when that method will fire so I’ll have to do more testing. As of now it seems there is no way to access the push token if the initial call to onRegister fails.