[expo-notifications] requestPermissionsAsync() with allowProvisional not working on iOS

Expo SDK 40 seems to have caused a behavior change in Notifications.requestPermissionsAsync() which breaks the ability of an iOS app to get provisional notification permission without showing a UI prompt.

With expo-notifications 0.8.2, I seem no longer able to control the parameters sent to the underlying iOS API, requestAuthorizationWithOptions. It always uses a default set of iOS permissions: {"allowAlert": true, "allowBadge": true, "allowSound": true} instead of the parameter I pass to the JavaScript method requestPermissionsAsync(), namely {"ios": {"allowProvisional": true}}. This is a problem because it causes a user-visible prompt, when instead it should silently acquire the provisional notification permission.

I noticed this commit: 4500a75#diff-c6765520a645c75d39acbb68f4345f534d8124ac3b80b7ba262b4abeed3a4431 by @cHaLkdusT which changed the iOS implementation of requestPermissionsAsync(). Correct me if I’m wrong, but it looks like the requestedPermissions parameter, passed in from JavaScript, is now being ignored? The new code involves instantiating a EXUserFacingNotificationsPermissionsRequester but this object has no knowledge of the parameters I passed to requestPermissionsAsync().

Steps to Reproduce

import * as Notifications from 'expo-notifications';
ExpoNotifications.requestPermissionsAsync({
        ios: {
            allowProvisional: true,
        },
});

Expected Behavior vs Actual Behavior (when running on a real iOS device)

  • Expected behavior: requestPermissionsAsync() resolves without any UI prompt
  • Actual behavior: the phone shows the standard “Allow this app to send you push notifications?” prompt, as if I had not set the “allowProvisional: true” flag.

1 possible answer(s) on “[expo-notifications] requestPermissionsAsync() with allowProvisional not working on iOS

  1. Thanks for reporting this! Opened a PR to fix this, and we can probably include it in an upcoming patch release for SDK 40 😄