Next.js Complete Guide
45 posts in this series
Next.js App Router Guide: Core Concepts and Basic Usage
A complete beginner's guide to Next.js App Router. Learn Server Components, Client Components, special files, and more with practical examples. Get started with Next.js App Router quickly and avoid common pitfalls.
Building a Production-Ready Blog with Next.js 15 in One Weekend
Learn how to build a production-grade full-stack blog system in one weekend using Next.js 15 + Server Actions + Prisma. Includes complete code, lessons learned, and performance optimization strategies.
Next.js Middleware Practical Guide: Path Matching, Edge Runtime Limitations & Common Pitfalls
From production bugs to complete solutions, deep dive into Next.js Middleware matcher configuration, Edge Runtime limitations, and three practical scenarios to help you avoid the most common pitfalls
Complete Guide to Deploying Next.js on Vercel: Environment Variables, Custom Domains & Performance Monitoring
A complete guide to deploying Next.js on Vercel, covering environment variable configuration, custom domain setup, SSL certificates, and performance monitoring, while avoiding common pitfalls.
Next.js Database Selection Guide: Complete Comparison of PostgreSQL, MySQL, MongoDB & Cloud Services
Not sure which database to choose for your Next.js project? This guide compares PostgreSQL, MySQL, MongoDB, analyzes Vercel Postgres, Supabase, PlanetScale, MongoDB Atlas, and helps you make quick decisions with 3 questions to avoid pitfalls.
Mastering Next.js Advanced Routing: Route Groups, Nested Layouts, Parallel Routes, and Intercepting Routes
A comprehensive guide to Next.js advanced routing features: Route Groups for organized directories, Nested Layouts for flexible reusability, Parallel Routes for simultaneous page rendering, and Intercepting Routes for elegant modal implementations. Includes complete code examples and common pitfalls to avoid.
Next.js Pages Router to App Router Migration Practical Guide: Progressive Strategy & Pitfall Checklist
Complete Next.js Pages Router to App Router migration from scratch? This article provides progressive migration approach, solutions to 7 common pitfalls, and real production project experience to help you safely upgrade to Next.js 14
Next.js Server Components Data Fetching Complete Guide: fetch, Database Queries & Best Practices
A complete guide to data fetching in Next.js Server Components, covering fetch vs database queries, async/await patterns, caching strategies, and error handling best practices.
Next.js App Router in Practice: Solving Large Project Directory Chaos with Route Groups and Nested Layouts
Learn how to use route groups, nested layouts, parallel routes, and intercepting routes to solve directory chaos, route conflicts, and team collaboration issues in large Next.js projects, with a complete directory structure template you can use.
Next.js Dynamic Routing & Parameter Handling Complete Guide: From Basics to Type Safety
Step-by-step guide to mastering Next.js 14+ dynamic routing system. Covers dynamic parameters, catch-all routes, optional parameters, when to use generateStaticParams, and TypeScript type safety practices. Solves confusion about routing parameter access changes, with extensive practical code examples.
Next.js App Router Common Pitfalls: 8 Real-World Lessons to Save You Time
From data fetching to error handling, this guide covers the 14 most common mistakes developers make with Next.js App Router. Learn practical solutions for Server Components, Client Components confusion, caching issues, migration problems, and more to avoid 80% of common errors.
Next.js SSR vs SSG vs ISR: A Guide to Choosing Rendering Strategies
Confused about when to use SSR, SSG, or ISR in Next.js? This guide helps you quickly choose the right rendering strategy through real-world scenarios and decision trees, solving common issues like ISR not working and slow initial page loads.
Next.js Server Actions Tutorial: Best Practices for Form Handling and Validation
A practical guide to Next.js Server Actions covering form handling, Zod validation, security practices, and UX optimization to help developers master this workflow-simplifying feature
Next.js Route Protection & Authorization: Complete Guide to Middleware and Multi-Layer Defense
Deep dive into Next.js route protection and access control. Learn how to implement secure RBAC systems using Middleware, getServerSession, and multi-layer defense architecture with practical code examples.
Complete Guide to OAuth Login in Next.js: Configuring Google, GitHub, and WeChat Authentication
Learn OAuth 2.0 in plain English. Step-by-step guide to setting up Google, GitHub, and WeChat login in Next.js, with solutions to common errors like redirect_uri mismatch and security best practices.
Next.js Internationalization Complete Guide: next-intl Best Practices
Deep dive into Next.js App Router internationalization solutions, including complete next-intl configuration, multi-language routing design, translation file management best practices, with practical code examples
Complete Guide to Next.js API Routes: From Route Handlers to Error Handling Best Practices
Complete guide to Next.js API Routes: master Route Handlers creation, request handling techniques, error handling best practices, and response format design for building backend APIs with Next.js
Next.js API Performance Optimization Guide: Caching, Streaming, and Edge Computing
Optimize Next.js API response time from 3 seconds to 500ms. Learn caching strategies, streaming responses, and Edge Functions implementation with real code examples and performance benchmarks.
Next.js API Authentication & Security: A Complete Guide from JWT to Rate Limiting
Complete Next.js API security guide: from JWT authentication, CORS configuration, rate limiting to input validation. Learn how to build secure production-ready applications with the latest vulnerability prevention methods.
Next.js Real-Time Chat: The Right Way to Use WebSocket and SSE
In-depth comparison of WebSocket, SSE, and Long Polling for real-time communication, sharing practical Vercel deployment experience with complete code examples for Socket.io integration, message state management, and performance optimization.
Next.js Unit Testing Guide: Complete Jest + React Testing Library Setup
Configure Next.js 15 testing environment from scratch with Jest + React Testing Library. Covers configuration, Client/Server Components testing, Hooks testing, Mock techniques, and troubleshooting with complete code examples.
Next.js Image Optimization Complete Guide: Using the Image Component the Right Way
A comprehensive guide to the Next.js Image component, solving slow image loading, remote image configuration errors, and layout shift issues. Includes Next.js 14/15 latest features, practical code examples, and performance optimization tips to boost your website performance by 60-80%.
Next.js Core Web Vitals Optimization: Complete Guide to LCP/FCP/CLS
Complete guide to optimizing Next.js Core Web Vitals metrics (LCP, FCP, CLS) and boosting Lighthouse scores to 90+. Includes 10+ code examples, common pitfalls, and practical tips.
Complete Next.js SEO Guide: Metadata API + Structured Data Best Practices
A complete guide to configuring SEO in Next.js 15 with Metadata API, structured data, Open Graph, and Twitter Cards. Includes practical code examples and tips to double your website traffic.
Complete Guide to Next.js Caching: Master When to Use revalidate
Deep dive into Next.js's four-layer caching system, master revalidate, revalidatePath, and revalidateTag usage, solve common data update issues with complete troubleshooting guide and best practices
Next.js State Management Guide: Zustand vs Jotai Practical Comparison
Redux too heavy, Context performance issues? This guide compares Zustand and Jotai in Next.js, offers clear selection criteria and App Router best practices to help you choose the right lightweight state management solution.
Advanced Next.js TypeScript Configuration: tsconfig Optimization and Type Safety Practices
In-depth guide on optimizing Next.js TypeScript configuration, including tsconfig strict mode, type-safe routing, environment variable types, and eliminating any types to enhance your development experience
Next.js Engineering Setup: ESLint + Prettier + Husky All-in-One Guide
Tired of PRs getting rejected for formatting issues? Dealing with code style chaos in your team? This hands-on guide shows you how to configure ESLint, Prettier, and Husky for automated code quality checks and formatting, making team collaboration smoother and more efficient.
Complete Guide to Next.js 404 & 500 Custom Error Pages: From Implementation to Design
Step-by-step guide to customizing Next.js error pages with not-found.tsx, error.tsx, and global-error.tsx. Includes complete code examples, design best practices, and solutions to common issues.
Next.js Loading State Management: loading.tsx & Suspense Practical Guide
Learn Next.js loading.tsx and Suspense practical techniques. Say goodbye to manual useState, implement professional loading experiences with minimal code. Includes skeleton screen implementation, dynamic route handling, and common troubleshooting.
Complete Guide to Next.js Error Boundary: 5 Key Techniques for Handling Runtime Errors Gracefully
Master the complete Next.js Error Boundary solution including error.tsx usage, global error handling, Server Components error handling, and recovery mechanisms to prevent blank pages and improve user experience.
Next.js E2E Testing: Playwright Automation Testing Guide
Complete hands-on experience from manual to automated E2E testing, covering Playwright configuration, Page Object Model, API testing, CI/CD integration, and more.
Next.js E-commerce in Practice: Complete Guide to Shopping Cart and Stripe Payment Implementation
Step-by-step guide to building an e-commerce shopping cart and payment system with Zustand + Stripe, covering state management selection, Checkout Session creation, and complete Webhook order processing with copy-paste ready code examples
Complete Guide to Next.js File Upload: S3/Qiniu Cloud Presigned URL Direct Upload
Learn how to implement direct file upload to S3/Qiniu Cloud using presigned URLs in Next.js, break through the 4MB limit, support up to 5GB files, with complete code examples, performance optimization, and production best practices.
Next.js Admin Panel in Practice: Complete Guide to RBAC Permission System Design and Implementation
Complete guide to implementing RBAC permission system for Next.js 15 admin panels, including middleware route protection, dynamic menu generation, shadcn/ui table component selection, and security best practices
Next.js + Prisma Complete Guide: From Setup to Production (with Connection Leak Solution)
A comprehensive Next.js + Prisma tutorial covering environment setup, schema design, CRUD operations, and hot reload connection leak solutions to help developers get started quickly with Prisma ORM.
Next.js CI/CD in Action: Automated Testing and Deployment with GitHub Actions
Implement automated testing and deployment for Next.js projects using GitHub Actions. Complete configuration code, troubleshooting tips, and best practices. Say goodbye to manual deployments forever.
Next.js Multilingual SEO Optimization: Ensuring Every Language Gets Indexed
Over 60% of multilingual websites have SEO configuration errors. This guide explains hreflang tag configuration, multilingual sitemap generation, URL strategy selection, and other core techniques to help you avoid common pitfalls and ensure each language version gets proper search rankings.
Next.js Internationalization with Static Site Generation: Building Multilingual SSG Sites
From build errors to performance optimization - a hands-on guide to implementing multilingual static generation with App Router. Includes complete code examples, generateStaticParams configuration, and build time optimization tips.
Next.js Dark Mode Implementation: Complete next-themes Guide
From flickering issues to perfect solutions - a hands-on guide to implementing flicker-free dark mode in Next.js using next-themes. Includes complete code, principle analysis, and troubleshooting.
Escape from Vercel: Complete Guide to Self-Hosting Next.js with Docker
Tired of Vercel's high bills? This guide teaches you how to self-host Next.js using Docker, including standalone configuration, reverse proxy setup, and streaming rendering fixes, saving $300-500 per month.
Complete Guide to Next.js Production Monitoring: Sentry Integration, Log Management & Alert Configuration
Step-by-step guide to building a Next.js production monitoring system: Sentry integration, log management, performance monitoring, and alert configuration. Covers App Router best practices with ready-to-use code templates
Next.js Sitemap & robots.txt Configuration Guide: Getting Your Site Indexed Faster
Complete guide to configuring Sitemap and robots.txt in Next.js, including three generation methods, common pitfalls, optimization strategies, and Google Search Console integration to help new websites get indexed quickly.
Next.js + Tailwind CSS Best Practices: A Complete Guide from Configuration to Dark Mode (2025 Edition)
The latest 2025 guide to Next.js + Tailwind CSS v4. Learn how to solve long className issues, configure custom themes, implement dark mode, and optimize performance. Real-world case study of reducing bundle size from 500KB to 50KB with complete code examples.
Implementing OAuth Login in Next.js: A Hands-On Guide to Google, GitHub, and WeChat Integration
From OAuth fundamentals to practical configuration, understand authorization flows through a package pickup analogy. Step-by-step guide to implementing Google, GitHub, and WeChat logins with NextAuth.js, including comprehensive troubleshooting.
