Mastering Next.js 15+ (App Router & Advanced SEO)
Go from absolute beginner to building production-ready, SEO-optimized Next.js applications. Learn the App Router, Server Components, data fetching, authentication, deployment, and more.
Course Curriculum
Introduction to the App Router
Understand the core architecture shift from Pages Router to App Router and why it matters.
File-based Routing Deep Dive
Master dynamic segments, catch-all routes, route groups, and parallel routes.
Layouts, Templates & the Root Layout
Build persistent UI shells with layouts and understand when to use templates instead.
Navigation with <Link> and useRouter
Prefetch pages, navigate programmatically, and manage scroll behaviour.
Loading UI & Suspense Boundaries
Add instant loading skeletons using loading.tsx and React Suspense.
Error Handling with error.tsx
Catch runtime errors gracefully with error boundaries at the route level.
Server Components vs Client Components
Learn the mental model that separates RSC from Client Components and when to use each.
Fetching Data in Server Components
Use async/await directly in components and understand the extended fetch API.
Caching & Revalidation Strategies
Master the four caching layers in Next.js and choose the right strategy for every data source.
Streaming with Suspense
Stream slow data to the client progressively instead of blocking the entire page.
Server Actions & Forms
Mutate data on the server directly from forms without writing API routes.
CSS Modules in the App Router
Scope styles to components with zero runtime cost using CSS Modules.
Tailwind CSS Setup & Best Practices
Configure Tailwind v4 with Next.js and adopt utility-first patterns that scale.
Global Styles & Fonts with next/font
Load Google Fonts and local fonts with zero layout shift using next/font.
Dark Mode with Tailwind & next-themes
Implement flicker-free dark mode with system preference detection.
The Metadata API
Export static and dynamic metadata objects to control every <head> tag.
Open Graph & Twitter Card Images
Generate dynamic OG images at the edge using next/og and ImageResponse.
Sitemap & robots.txt Generation
Auto-generate sitemaps from your dynamic routes and control crawler access.
Structured Data (JSON-LD)
Add schema.org JSON-LD scripts to unlock rich results in Google Search.
Core Web Vitals & Performance Auditing
Measure LCP, CLS, and INP with Lighthouse and the Web Vitals library.
Authentication Options Overview
Compare Auth.js, Clerk, Supabase Auth, and custom JWT approaches.
Auth.js v5 with Next.js
Set up Auth.js (next-auth v5) with credential and OAuth providers.
Protecting Routes with Middleware
Use Next.js middleware to redirect unauthenticated users before the page renders.
Role-based Access Control (RBAC)
Extend sessions with custom roles and enforce them in middleware and Server Components.
Choosing a Database for Next.js
Compare Postgres, SQLite, and MongoDB options with serverless-friendly ORMs.
Prisma ORM with Next.js
Model your schema, run migrations, and query your database in Server Components.
Drizzle ORM — A Lighter Alternative
Use Drizzle's SQL-like query builder for type-safe queries with minimal overhead.
Route Handlers (app/api)
Build REST endpoints with Route Handlers and the Web Request/Response APIs.
Building a REST API with Validation
Validate request bodies with Zod and return typed responses.
Webhooks & Background Jobs
Receive webhooks securely and defer slow work to a background queue.
When (and When Not) to Use Client State
Rethink state management when the server does most of the heavy lifting.
Zustand for Global Client State
Set up a lightweight Zustand store and avoid hydration mismatches.
URL State with nuqs
Sync filter, sort, and pagination state to the URL for shareable, bookmarkable pages.
Unit Testing with Vitest
Write fast unit tests for utility functions and Server Actions with Vitest.
Component Testing with React Testing Library
Test Client Components from the user's perspective with RTL and Vitest.
End-to-End Testing with Playwright
Automate full user flows — sign up, checkout, dashboard — in a real browser.
Deploying to Vercel
Connect your repo, set environment variables, and go live in minutes.
Self-hosting with Docker
Build a production Docker image and run Next.js on your own infrastructure.
CI/CD with GitHub Actions
Run tests, lint, and type-check on every push to catch bugs before they reach production.
Environment Variables & Secrets Management
Safely manage secrets across local, preview, and production environments.
Project Setup & Architecture Planning
Scaffold the project and map out the data model, routes, and component tree.
Building the CMS Dashboard
Create a protected admin area with a rich text editor and image uploads.
Public Blog with Dynamic OG Images & Full SEO
Build the reader-facing site with per-post metadata, JSON-LD, and dynamic OG images.
Deploying & Monitoring the Capstone Project
Ship to production and set up error monitoring and analytics.