rsc-shield

What it does

Prevent accidental data leaks in Next.js Server Actions. rsc-shield is a lightweight utility that sanitizes your server-side data before it reaches the client, ensuring secrets like passwords or internal IDs never cross the boundary.

Contribute to heysaiyad/rsc-shield development by creating an account on GitHub.

I kept making the same mistake. I'd write a Server Action, fetch a user from the database, and return it. Simple, right? 'use server' ; export async function getUser ( id : string ) { const user = await db . users . find ( id ) ; return user ; // whoops - this has the password hash, SSN, everything } The thing is, Server Actions serialize everything you return. There's no filter. Whatever your ORM gives you goes straight to the browser. import { shield } from 'rsc-shield' ; export const getUser = shield ( async ( id : string ) => { return await db . users . find ( id ) ; } , { allow : [ 'id' , 'name' , 'email' , 'avatar' ] } ) ; That's it. Only those four fields make it to the client.…from github.com

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