Next.js
Is there a framework for building a full React site with routing and SEO?
/products/42, Next.js can find that product page and fetch product data on the server before showing it. It does not automatically provide a product database or permission system.The URL maps to a file: In the App Router, /posts maps to app/posts/page.tsx.
The server prepares content for the browser: The page can fetch an article list and prepare HTML on the server before sending it to the browser, reducing white-screen wait times.
Mark interactive components with 'use client': Components run on the server by default. Those requiring user interaction (onClick, useState) must have 'use client' at the top. The common 'useState only works in Client Components' error means this directive is missing.
You can say this to an AI Agent
Use Next.js for article routes, page metadata, and data loading while reusing current React components. Do not assume automatic storage or permissions; list and verify the remaining article storage, login, and deployment work.
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