@hrushikedar

REST in Peace

Jan 22 · 6 min read · “REST is simple.”— Someone who never built an API used by more than 3 people. Let’s fix that. This blog explains REST, RESTful APIs, controllers, HTTP methods, status codes, validation, auth, pagination, and all the interview traps, but in a way you...

Who’s Burning Your CPU Cycles?

Sep 24, 2025 · 5 min read · So, you’re a developer. You’ve been told polymorphism is this magical wand that makes your code flexible, extensible, and architecturally pure. But let’s be honest — nobody told you it also makes your CPU sweat like it’s running a marathon in Bangalo...

SOLID Principles & Design Patterns

Sep 23, 2025 · 5 min read · Ah yes, SOLID principles — the holy commandments every senior developer swears by. Single Responsibility, Open-Closed, Liskov Substitution, Interface Segregation, Dependency Inversion. You’ve probably heard your architect chanting them in daily stand...

Dijkstra’s Algorithm

Sep 15, 2025 · 5 min read · Ah yes, Dijkstra’s algorithm. The one you swear you’ll never forget, and yet somehow in every contest you end up trying BFS on weighted edges (“because it worked last time, right?”). Spoiler alert: BFS is not magic. If edges have weights other than 1...

Behind the Scenes of LLMs:

Sep 11, 2025 · 6 min read · Welcome to the land of AI buzzwords. If you’ve survived RAG, MCP, and “AI Agents,” congratulations—your buzzword tolerance is above average. But let’s go deeper. Ever wondered how a thing like ChatGPT or Claude or Gemini or DeepSeek actually gets mad...