Push Notification APIs
Push Notification APIs are platform-specific interfaces that enable applications to send real-time messages or alerts to users' devices, even when the app is not actively running. They work by establishing a persistent connection between the device and a push notification service, allowing servers to deliver notifications for updates, reminders, or events. Common implementations include Apple Push Notification service (APNs) for iOS/macOS, Firebase Cloud Messaging (FCM) for Android and cross-platform, and web push APIs for browsers.
Developers should learn Push Notification APIs to enhance user engagement and retention in mobile and web applications by delivering timely information, such as news alerts, chat messages, or transactional updates. They are essential for apps requiring real-time communication, like social media, e-commerce, or productivity tools, and help maintain user interest by keeping the app relevant even during inactive periods. Mastery is crucial for roles involving mobile development, backend services, or full-stack applications with notification features.