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Next.js 15 Fullstack Web Apps · Lesson

Building API Route Handlers

Create robust RESTful API endpoints using the App Router's Route Handlers for backend logic.

Welcome to Route Handlers

In Next.js 15, Route Handlers are the powerful way to build backend API endpoints directly within your App Router project.

They allow you to create RESTful APIs, handle webhooks, or perform any server-side logic, all co-located with your frontend code.

Why Use Route Handlers?

Route Handlers offer several benefits:

  • Simplicity: No need for a separate backend server.
  • Co-location: API logic lives next to related UI components.
  • Performance: Built on Web Standard APIs, making them efficient.
  • Flexibility: Support all HTTP methods (GET, POST, PUT, DELETE, etc.).

All lessons in this course

  1. Building API Route Handlers
  2. Request Validation and Security
  3. Integrating External Services
  4. Rate Limiting and API Error Handling
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