Progressive Web Apps

5.

Push Notifications

5.1.

Push Notification Architecture

5.1.1.

Push Service Providers

5.1.2.

Application Server Role

5.1.3.

Client-Server Communication Flow

5.1.4.

Security and Authentication

5.2.

Push API Implementation

5.2.1.

Service Worker Registration for Push

5.2.2.

Push Subscription Process

5.2.2.1.

User Permission Request

5.2.2.2.

Subscription Object Creation

5.2.2.3.

Subscription Storage

5.2.3.

Push Event Handling

5.2.3.1.

Receiving Push Messages

5.2.3.2.

Message Payload Processing

5.2.3.3.

Notification Display Logic

5.3.

Notifications API

5.3.1.

Notification Creation

5.3.1.1.

Basic Notification Properties

5.3.1.2.

Notification Actions

5.3.1.3.

Notification Icons and Images

5.3.2.

Notification Interaction

5.3.2.1.

Click Event Handling

5.3.2.2.

Action Button Responses

5.3.2.3.

Notification Closing

5.3.3.

Notification Permissions

5.3.3.1.

Permission States

5.3.3.2.

Permission Request Strategies

5.3.3.3.

Permission Management

5.4.

Push Message Delivery

5.4.1.

Server-Side Implementation

5.4.1.1.

Push Service Integration

5.4.1.2.

Message Encryption

5.4.1.3.

Delivery Confirmation

5.4.2.

Message Payload Formats

5.4.2.1.

5.4.2.2.

5.4.2.3.

5.4.3.

Delivery Reliability

5.4.3.1.

Retry Mechanisms

5.4.3.2.

Fallback Strategies

5.4.3.3.

5.5.

Advanced Push Features

5.5.1.

Notification Scheduling

5.5.2.

Personalized Notifications

5.5.3.

Rich Media Notifications

5.5.4.

Notification Analytics

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4. Caching and Offline Functionality

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6. Background Synchronization