@kawaljain

🚀 SOLID Principles Series – Part 2: Open/Closed Principle (OCP)

May 23, 2025 · 2 min read · Open/Closed Principle (OCP) Make your code ready for change — without breaking old stuff “A class should be open for extension but closed for modification.”— Bertrand Meyer What Does That Even Mean? Let’s break it down: Open for extension = You c...

🚀 SOLID Principles Series – Part 1: Single Responsibility Principle (SRP)

May 20, 2025 · 3 min read · There is no better way to start off my post than introducing you to the SOLID Principles – a set of five rules that every developer, regardless of experience, needs to master in order to produce clean, scalable, performance-oriented, and easy-to-main...

Meet Your New Co-Workers: AI Agents

May 19, 2025 · 2 min read · What Are AI Agents? AI agents are smart software systems that can work independently. They can plan, make decisions, and work with other agents without constant human guidance. Examples include AutoGPT and BabyAGI. Benefits Flexibility: Agents ...

Rate Limiter

May 19, 2025 · 3 min read · A Rate Limiter is a system that blocks a user request and only allows a certain number of requests to go through in a specified period. Why Do we need it? Prevent DDOS attacks and malicious users from overloading our site's traffic. Preventing thes...

Building a Scalable Chat App

May 18, 2025 · 3 min read · Real-time + Horizontal Scalability Introduction When I first started building this chat app, there was one requirement I had in mind: it has to be real-time, scalable, and easy to scale up. Sounds easy—until you introduce multiple servers to the mix...