NextJs
Introduction to Next.js
Next.js is a React framework for building fast, production-grade web applications. It provides featu...
File-based Routing
Next.js uses a file-based routing system. Any file you create in the 'pages' folder automatically be...
Linking Between Pages
Use the `Link` component from Next.js to navigate between pages without reloading the browser, provi...
Dynamic Routes
You can create dynamic routes by using square brackets in the filename. This is useful for pages lik...
Static Site Generation (SSG)
SSG generates HTML at build time. Use `getStaticProps` to fetch data before rendering the page. Idea...
Static Paths with Dynamic Routes
When using dynamic routes with SSG, you must define paths to pre-render using `getStaticPaths`....
Server-Side Rendering (SSR)
Use `getServerSideProps` to fetch data on every request. This is useful for dynamic content that cha...
API Routes
Next.js allows you to create serverless API endpoints inside the `pages/api` folder. Each file in th...
Environment Variables
Store sensitive data like API keys using environment variables. Use `.env.local` for development and...
Image Optimization
Next.js has a built-in Image component that optimizes images automatically. It supports lazy loading...
API Fetching with SWR
SWR is a React hook library for data fetching. It handles caching, revalidation, focus tracking, and...
Middleware
Middleware lets you run code before a request is completed, useful for authentication, logging, or r...
Custom App and Document
Customize the default App and Document to modify how pages are rendered. `_app.js` wraps all pages, ...
API Authentication
You can handle authentication using JSON Web Tokens (JWT) or OAuth inside Next.js API routes. Protec...
API Caching and Revalidation
Next.js supports Incremental Static Regeneration (ISR) to revalidate pages after they’ve been built....
Internationalization (i18n)
Next.js has built-in support for internationalization (i18n), making it easy to create multilingual ...
API Error Handling
Handle errors gracefully in API routes by returning appropriate HTTP status codes and JSON error mes...
Deploying a Next.js App
Next.js apps can be deployed to Vercel (official platform), Netlify, or other cloud services. Vercel...
Optimizing Performance
Use built-in tools like automatic code splitting, lazy loading, image optimization, and caching head...
Full Stack Next.js Example
Combine all concepts to create a full-stack app: static pages, server-side rendering, API routes, au...