Next.js App Router Complete Guide: From Basics to Advanced Patterns The Next.js App Router represents a fundamental shift in how we build React applications. This comprehensive guide will take you from the basics to advanced patterns, helping you master modern Next.js development. Table of Contents Understanding the App Router File-Based Routing Layouts and Templates Server and Client Components Data Fetching Strategies Route Handlers (API Routes) Advanced Patterns Understanding the App Router The App Router is built on React Server Components and introduces new conventions for building applications with improved performance and developer experience.…