Twitter High-Level Design: Building the Bird’s Nest of the Web 🐦

Mastering the Twitter Architecture: High-Level System Design for Real-Time Performance

Imagine Twitter: a platform where millions of users around the world are constantly tweeting, retweeting, liking, and engaging in a massive conversation that never stops. It’s a place where breaking news spreads in seconds, influencers share their thoughts, and brands engage with their customers. Designing a system to handle such massive scale requires thoughtful planning and robust engineering. So, let’s dive into a high-level design of Twitter, keeping in mind scalability, performance, and reliability! 🚀

1. Requirements: Functional and Non-Functional 🎯

Before we start designing, we need to clearly define what Twitter is supposed to do and how it should behave.

Functional Requirements:

1. User Registration and Authentication: Users can sign up, log in, and manage their profiles.
2. Tweeting: Users can post short messages (tweets) of up to 280 characters.
3. Follow System: Users can follow others and see their tweets in their timeline.
4. Likes and Retweets: Users can like and…