HLD (High-Level Design) for Facebook System Design
1. Web Browser and Mobile App
These are the two primary interfaces through which users interact with the Facebook of Things platform. Users can access the platform either through a web browser on their desktop/laptop or through a dedicated mobile app on their smartphones or tablets.
2. Authentication
Before accessing any features or services, users are required to authenticate themselves. This step ensures that only authorized users can access their accounts and the associated functionalities.
3. Core Services
- User Profile Service: This service manages and stores user profile information, including personal details, preferences, and settings.
- News Feed Service: Responsible for aggregating and delivering personalized news feeds to users based on their interests, social connections, and activity.
- Messaging Service: Facilitates real-time communication between users through text, voice, and video messaging features.
4. Data Storage
- User Data: Stores various types of user-generated data, such as profile information, posts, comments, likes, and shares.
- Media Storage: Handles the storage of multimedia content uploaded by users, including photos, videos, and audio files.
- Message Database: Stores chat history and message conversations exchanged between users.
5. Compute
Content Delivery Network (CDN): The CDN optimizes the delivery of static and dynamic content, such as images, videos, and other media files, to users across different geographical locations. It helps improve the performance and reliability of content delivery by caching data on edge servers located closer to users.
Design Facebook | System Design
Designing a system as complex and globally impactful as Facebook requires careful consideration of various factors, including scalability, reliability, and performance. This article explores the key components and architectural decisions involved in designing Facebook, focusing on its core functionalities and the challenges of supporting billions of users worldwide.
Important Topics for Facebook System Design
- Requirements Gathering for Facebook System Design
- Capacity Estimation for Facebook System Design
- HLD (High-Level Design) for Facebook System Design
- LLD (Low-Level Design) for Facebook System Design
- Database Design for Facebook System Design
- Scalability for Facebook System Design
- APIs Used for Facebook System Design
- Components Details in Facebook System Design