Push notification integration in HLD - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a push notification in mobile apps?

A push notification is a message sent by an app to a user's device to provide updates or alerts, even when the app is not open.

beginner

Name two common services used for push notification delivery.

Firebase Cloud Messaging (FCM) and Apple Push Notification Service (APNs) are two common services used to send push notifications to Android and iOS devices respectively.

intermediate

What is a device token in push notification integration?

A device token is a unique identifier assigned to a device by the push notification service, used to target that specific device when sending notifications.

beginner

Why do apps need user permission for push notifications?

Apps need user permission to respect privacy and avoid unwanted interruptions. Users control whether they want to receive notifications.

intermediate

What is the role of a notification payload?

The notification payload contains the message content and data sent from the server to the device, defining what the notification shows and how it behaves.

Which service is used to send push notifications to Android devices?

A Firebase Cloud Messaging (FCM)

B Apple Push Notification Service (APNs)

C Google Maps API

D SQLite

Firebase Cloud Messaging (FCM) is the service for Android push notifications.

What must an app request from the user before sending push notifications?

A User permission

B User password

C User location

D User email

Apps must ask for user permission to send push notifications.

What does a device token represent?

A The user's password

B A unique device identifier for notifications

C The app version number

D The device's battery level

Device token uniquely identifies the device for push notifications.

Which part of a push notification contains the message text?

A App icon

B Device token

C User permission

D Notification payload

The notification payload includes the message content.

When can a push notification be received by the user?

A Only during app installation

B Only when the app is open

C Even when the app is closed

D Only when the device is charging

Push notifications can arrive even if the app is not running.

Explain the steps to integrate push notifications in a mobile app.

Think about what happens from app start to notification display.

Describe why user permission is important for push notifications.

Consider the user's experience and privacy.