🎯 What is the Strategy Design Pattern? The Strategy Design Pattern is one of the most commonly used behavioral design patterns. It allows you to define a family of algorithms, encapsulate each one, and make them interchangeable. This pattern lets th...
Low-Level Design (LLD) Guide What is Low-Level Design (LLD)? Low-Level Design (LLD) is the process of designing detailed components of a system, focusing on class structures, object relationships, methods, and interactions. What is Object-Oriente...
Have you ever worked on a codebase that felt like a tangled web of confusion—where making a small change risks breaking five other things? If you’ve been there, you know how frustrating and time-consuming it can be. Clean, maintainable code isn’t jus...
Designing and implementing a notification system that can send various types of notifications (e.g., email, SMS, push notifications) based on user preferences. Quick Links:System Design VideoProject Demonstration VideoIt is recommended to go through ...
Asked in LLD Interview for SDE-2 Problem Statement: Design a Coupon Recommendation System for Zepto that fulfills the following requirements: Key Requirements: Coupon Recommendation: Recommend applicable coupons for a given order. Evaluate rules d...
It is an API management tool that sits between a client and a collection of backend services. It serves as a single entry point for all API requests, offering a unified interface to access different services and data. By separating client applicati...
Caching is a common method for keeping your data closer to users, which speeds up response times compared to the usual access time. It involves saving frequently accessed data in a location that can be accessed quickly and easily. The main purpose o...
Load balancer is critical component of system. It manages the load or data across multiple servers, machines or database servers. It tracks the status of each of servers within the system and, based on their responses, distributes the load evenly. W...
How Producer and Broker Communication works? Whenever a Producer send a message to Broker , Broker will in return send an ACK to producer and log the message into the respective partition .In case producer doesn’t successfully received the ACK produc...
Problem Statement Let’s consider a scenario where we have a single service instance running a cron job. This job checks the database for any entries with a status of COMPLETED. When it finds such entries, it performs the necessary application code c...
