Match each type to the platform's alert level

How to do it

Apple's interruption-level takes passive, active, time-sensitive or critical. Time-sensitive breaks through Focus and the notification summary, and people can turn that off per app. Critical plays a sound through the mute switch and needs an entitlement that Apple must approve. From Android 8, every notification belongs to a channel the app creates, and people mute each channel in settings. Name channels after catalogue groups, such as "Orders" and "Security", and send channel_id with each FCM message. FCM falls back to the manifest's default channel when the ID is missing or not created yet. Read the urgency from Keep every notification type in one catalogue.

Examples

JavaScript example

const APNS_LEVEL = { critical: 'time-sensitive', normal: 'active', low: 'passive' };

export function platformOptions(type) {
  return {
    apns: { payload: { aps: { 'interruption-level': APNS_LEVEL[type.urgency] } } },
    android: { notification: { channel_id: type.group } },
  };
}

Python example

APNS_LEVEL = {"critical": "time-sensitive", "normal": "active", "low": "passive"}

def platform_options(kind) -> dict:
    return {
        "apns": {"payload": {"aps": {"interruption-level": APNS_LEVEL[kind.urgency]}}},
        "android": {"notification": {"channel_id": kind.group}},
    }

How to check

A unit test maps every catalogue type and finds time-sensitive or critical only on critical types, and passive on every low type. A second test finds each channel_id the server sends in the app's list of created channels.

Sources

• Apple, UNNotificationInterruptionLevel
• Apple, Generating a remote notification
• Firebase, FCM HTTP v1 message reference

Related rules

• Keep every notification type in one catalogue in Notifications