NextJS 14 — Server Action and Interactivity

Alberto Cubeddu
3 min readApr 12, 2024

The React ecosystem is evolving, and with that evolution comes new patterns for writing your code! With Server Actions, we are now able to incorporate “backend” code into what is traditionally considered the “client” side of the application. You’re probably familiar with all the meme posts from the launch of this new feature.

Let’s delve into how Server Actions are used in conjunction with the interactivity of your web app.

Server Action

Server Actions are asynchronous functions executed on the server, usable in both client and server components. This is the fundamental concept of Server Actions. But how do they integrate with interactivity?

If you need interactivity, consider converting part of this to a Client Component

Have you ever encountered the following error message? It’s not difficult to resolve, but it requires an understanding of how server and client components interact:

The basics

Using a component with “use client” automatically converts all subsequent components into…



Alberto Cubeddu

Leadership || Management || Innovation - Technology Director & Former Head Of Engineering