Creating SNS Endpoint Device Token Error [Expo]

Question

While creating application endpoint, device token is not accepted. Exo returns token like that ExponentPushToken[91hX**********]

in the below the form it is written :

Maximum 400 characters. Only hexadecimal characters ara allowed

I convert to token to hexadecimal it still not accept device token.

to get device token in expo I follow expo-notification guide.

async function registerForPushNotificationsAsync() {
  let token;
  if (Device.isDevice) {
    const { status: existingStatus } = await Notifications.getPermissionsAsync();
    let finalStatus = existingStatus;
    if (existingStatus !== 'granted') {
      const { status } = await Notifications.requestPermissionsAsync();
      finalStatus = status;
    }
    if (finalStatus !== 'granted') {
      alert('Failed to get push token for push notification!');
      return;
    }
    token = (await Notifications.getExpoPushTokenAsync()).data;
    console.log(token);
  } else {
    alert('Must use physical device for Push Notifications');
  }

  if (Platform.OS === 'android') {
    Notifications.setNotificationChannelAsync('default', {
      name: 'default',
      importance: Notifications.AndroidImportance.MAX,
      vibrationPattern: [0, 250, 250, 250],
      lightColor: '#FF231F7C',
    });
  }

  return token;
}

score 0 · Answer 1 · answered Feb 23 '22 at 23:34

As per https://docs.aws.amazon.com/sns/latest/dg/sns-mobile-application-as-subscriber.html#sns-how-user-notifications-work, SNS does not list Expo as a supported platform.

While Expo supports iOS and FCM, which are also supported by SNS, SNS does not support the additional layer Expo adds on top of these platforms.

score 0 · Answer 2 · answered Apr 25 '23 at 15:34

0

You need to use getDevicePushTokenAsync() instead of getExpoPushTokenAsync() If you aren't using the Expo notification service directly.

answered Apr 25 '23 at 15:34

cr0ybot

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Creating SNS Endpoint Device Token Error [Expo]

2 Answers2