Potta Vijay Kumar

In today’s fast-paced digital landscape, performance isn’t just a luxury — it’s a necessity. A delay of even 100 milliseconds can impact user experience and conversion rates. That's why monitoring front-end performance is crucial for any modern web application. Two powerful tools in the performance monitoring arsenal are Web Vitals and Google Lighthouse . Let's explore what they are, how they work, and how you can leverage them to ensure your applications stay lightning-fast and user-friendly. What Are Web Vitals? Web Vitals is an initiative by Google to provide unified guidance on essential metrics that matter most to user experience. The Core Web Vitals: Largest Contentful Paint (LCP): Measures loading performance. Target: < 2.5s First Input Delay (FID): Measures interactivity. Target: < 100ms Cumulative Layout Shift (CLS): Measures visual stability. Target: < 0.1 These metrics focus on actual user perception and interaction, helping developers prioritize real-...

  Modern web development increasingly relies on high-performance, scalable, and developer-friendly tools. One powerful combination that's gaining popularity is pairing Next.js for the frontend with FastAPI on the backend. Together, they enable developers to build full-stack applications that are fast, secure, and maintainable. In this blog, we’ll explore how and why this combo works so well, and walk through an architecture that supports scale and performance. Why Next.js + FastAPI? Next.js (Frontend) React-based framework offering server-side rendering (SSR), static site generation (SSG), and full routing. Built-in image optimization , API routes, and file-based routing. Perfect for SEO , fast page loads, and a smooth user experience. FastAPI (Backend) Python-based, high-performance framework for building APIs with automatic validation and documentation. Supports async out of the box and is ideal for microservices or real-time backen...

  As front-end applications grow more complex and diversified—spanning web, mobile, and even smart devices—the demand for optimized, personalized, and efficient back-end communication becomes paramount. This is where the Backend-for-Frontend (BFF) design pattern steps in. In this article, we’ll explore what the BFF pattern is, why it matters, and how it can help front-end scalability. What is the BFF Pattern? Backend-for-Frontend (BFF) is a software architectural pattern where each front-end interface (web, mobile, etc.) has its own tailored backend service. Instead of having a single backend API that serves all clients, the BFF acts as a middle layer between the client and backend services, tailored to the specific needs of each front-end. In short: One frontend → One BFF → Backend services Why Use a BFF? Here’s why the BFF pattern has become increasingly relevant: Frontend-Specific Logic : Front-ends often need data formatted differently....

Testing is a crucial part of modern front-end development. As applications become more complex, the need for robust, maintainable testing tools increases. In this blog, we’ll explore and compare three of the most widely used front-end testing frameworks: Jest , Cypress , and Playwright . 1. Jest: Unit & Integration Testing Powerhouse Jest is a delightful JavaScript testing framework developed by Facebook, mainly used for unit and integration testing in React and other JS-based applications. Key Features: Built-in assertions, mocking, and test runners Fast performance with intelligent test parallelization Snapshot testing support Great for testing logic-heavy components Best For: Unit and integration testing of components and business logic. 2. Cypress: End-to-End Testing Simplified Cypress is a next-gen end-to-end testing framework built specifically for modern web apps. Key Features: Real browser testing environment Fast, real-time feedback in the browser ...