nextjs-expert

Next.js App Router handles dynamic data fetching using Server Components and streaming. This approach fetches data on the server and streams HTML chunks to the client, ensuring a performant UI without blocking the initial page render.

Server Components fetch data and render HTML on the server by default, while Client Components handle interactivity. To use them correctly, isolate client-side logic into dedicated Client Components to avoid common pitfalls and optimize bundle sizes.

Use Parallel Routes to render multiple pages simultaneously within a single layout, and Intercepting Routes to overlay a modal over the current page. They enable advanced routing patterns like dynamic dashboards and seamless modal navigation.

Yes, Next.js App Router supports Server Actions to handle form submissions and data mutations directly on the server. This feature allows you to write server-side code that securely updates data without creating separate API endpoints.

Data fetching issues in Next.js Server Components often stem from incorrect async usage or attempting client-side caching strategies. Server Components support direct async requests, so verify you are not mixing client-side fetching hooks with server-side rendering.

Optimize Next.js deployment by leveraging SSR and SSG for SEO-friendly pages, utilizing built-in image and font optimization, and configuring middleware. This ensures fast loading times and efficient server-side rendering across your application.