Next.js API Routes vs Server Actions — When to Use Which

Server Actions landed in Next.js 13 and are stable by v15. But API Routes are not going anywhere. Here is how I decide between them in real projects.

Next.jsReactTypeScript
Mifzaal Abdul Bari

Mifzaal Abdul Bari

@islandboymv

·1 min read

When I started building with the Next.js App Router I treated Server Actions as a straight replacement for API Routes.

The Core Difference

API Routes are HTTP endpoints. Server Actions are async functions that run on the server but are invoked directly from client components.

My Decision Rule

  • Server Action — form submissions, mutations only called from your own UI
  • API Route — third-party webhooks, mobile app backends
  • Neither — if you are already inside a Server Component, just call the function directly
Previous

Setting Up an Active Directory Homelab from Scratch

Next

First 30 Days as an ICT Infrastructure Intern — What I Learned

All Posts