Push Notifications (End-to-End)

HOW IT IS WIRED

Real code from the GAS template

The excerpt below is lifted verbatim from lib/notifications.ts in the gas-template repository. This is the code your generated app gets, not pseudocode, not a description of intent.

// lib/notifications.ts — push token registration
export async function requestPermissionAndRegister(
  userId: string
): Promise<string | null> {
  if (isWeb || !ExpoNotifications || !Device) return null;
  if (!Device.isDevice) return null;

  const { status: existing } = await ExpoNotifications.getPermissionsAsync();
  const finalStatus =
    existing === 'granted'
      ? existing
      : (await ExpoNotifications.requestPermissionsAsync()).status;

  if (finalStatus !== 'granted') return null;

  // Create Android channels from gasConfig.features.pushNotifications.channels
  if (Platform.OS === 'android') {
    for (const channel of gasConfig.features.pushNotifications.channels) {
      await ExpoNotifications.setNotificationChannelAsync(channel, {
        name: channel.charAt(0).toUpperCase() + channel.slice(1),
        importance: ExpoNotifications.AndroidImportance.MAX,
      });
    }
  }

  const token = (await ExpoNotifications.getExpoPushTokenAsync()).data;

  // Upsert token into Supabase for server-side delivery
  await supabase.from('push_tokens').upsert({
    user_id: userId, token, platform: Platform.OS,
    updated_at: new Date().toISOString(),
  });
  return token;
}

Source: goodspeed-apps/gas-template → lib/notifications.ts