Next.js App Router Example

This repo contains examples from my talk on the new Next.js App Router.

• Video for Part 1
• Video for Part 2

The talk is broken up into sections - and each section has a corresponding Pull Request.

The main branch (what you're looking at right now) has the full thing, each Pull Request is based off of the other, starting with the Base Install.

See the full running app here on Vercel

Resources

• Next.js Docs
• App Router Playground
• Next.js on React Server Components
• React Server Components on patterns.dev
• Hacker News thread by Dan Abramov

Talk Sections:

0: Base install

(branch only, no PR)

We start with the output of npx create-next-app@latest, with a couple small adjustments

• Update design
• Use pnpm

1: Intro, Routes and Layouts

Running App on Vercel

• Add some basic routes
• Add a Root Layout
• Add some nested layouts
• Add some examples of Client Components

2: Route Groups and Dynamic Routes

Running App on Vercel

• Add a Route Group
• Add a Dynamic Route
• Add Dynamic Metadata

3: Handling Errors

Running App on Vercel

• Add error handlers
• Add 404 handlers

4: Data Fetching

Running App on Vercel

• Add Data Fetching to Route
• Add Data Fetching to Layout
• Add loading.js files

5: Suspense

Running App on Vercel

• Add Suspense example

6: Rendering and Caching

Running App on Vercel

• Data fetch on static route
• Data fetch on dynamic route
• fetch with cache: no-store
• fetch with revalidate: 0
• fetch with revalidate: 5
• fetch with a Static page + revalidate = true Route Segment Config

Running Locally

This repo requires node and pnpm

Installing node:

The best way to install node is to download the installer from their site. This repo requires node version 18.16, which is the latest LTS version.

If you already have a different version of node installed, but don't want to update globally, you can install a package called nvm, which will allow you to easily switch node versions. Once you have nvm installed (or if you already have it installed), you can run nvm use in the main directory and it will install the proper version of node.

Installing pnpm:

pnpm is a package manager that is used to install the rest of our dependencies.

Read more about pnpm on their docs site.

The best way to install pnpm for this project is by using Corepack, a new feature bundled with Node.

Install pnpm via corepack with the following commands:

corepack enable
corepack prepare

Then follow the normal nextjs instructions:

---

Next.js Auto-Generated README:

This is a Next.js project bootstrapped with create-next-app.

Getting Started

First, run the development server:

pnpm dev

Open http://localhost:3000 with your browser to see the result.

You can start editing the page by modifying app/page.tsx. The page auto-updates as you edit the file.

This project uses next/font to automatically optimize and load Inter, a custom Google Font.

Learn More

To learn more about Next.js, take a look at the following resources:

• Next.js Documentation - learn about Next.js features and API.
• Learn Next.js - an interactive Next.js tutorial.

You can check out the Next.js GitHub repository - your feedback and contributions are welcome!

Deploy on Vercel

The easiest way to deploy your Next.js app is to use the Vercel Platform from the creators of Next.js.

Check out our Next.js deployment documentation for more details.