Build Headless Storefront with Next.js | Developer Guide

Why Next.js for Headless Commerce?

Next.js has emerged as the go-to framework for headless commerce frontends, offering the perfect blend of performance, developer experience, and flexibility.

Key Features for E-commerce

Hybrid Rendering

Choose the optimal rendering strategy for each page:

Static Generation (SSG) for product listings and category pages
Server-Side Rendering (SSR) for personalized content
Incremental Static Regeneration (ISR) for updating static pages without full rebuilds
Client-Side Rendering for dynamic cart and checkout

App Router Architecture

The new App Router provides improved layouts, nested routing, and React Server Components - perfect for complex e-commerce site structures.

Project Setup

npx create-next-app@latest my-headless-store --typescript
cd my-headless-store
npm install @tanstack/react-query zustand

Connecting to Commerce APIs

Create a commerce layer that abstracts your backend:

// lib/commerce/index.ts
export async function getProducts(params: ProductQuery) {
  const response = await fetch(`${API_URL}/products`, {
    headers: { 'X-API-Key': process.env.COMMERCE_API_KEY },
    next: { revalidate: 3600 } // ISR: revalidate every hour
  });
  return response.json();
}