State for React Server Components on Next.js
npm install nrstate-clientState for React Server Components (RSC) on Next.js
N: Next.js
R: React Server Components
State
✨ Next.js 13 support, for RSC
- Read/Write state also works on Client-component.
- Read state also works on Server-component.
- nrstate
https://www.npmjs.com/package/nrstate
``sh`
npm i nrstate
- nrstate-client
https://www.npmjs.com/package/nrstate-client
`sh`
npm i nrstate-client
You can play with the example code here.
https://github.com/vteacher-online/nrstate-demo
Implement persistence, read or write by observing all state changes across your page, without impairing code-splitting.
#### PageState
A PageState represents a state of Page-component.
- Client-component
PageState can be read and write from any Client-component.
- Server-component
PageState can be read from any Server-component.
ex.
!Demo
- PageStateDemo.tsx
`tsx
export const pathDemo = '/demo';
export type PageStateDemo = {
a: string;
d: string;
};
export const initialPageStateDemo = { a: '', d: 'asc' } as PageStateDemo;
`
#### PageStateProvider
Components that use nrstate need to appear somewhere in the parent tree. A good place to put this is in your root component.
Make the "page" Server-component.
( Do not write "use client" )
- page.tsx
`tsx`
export default function Page() {
return (
initialPageStateDemo,
pathDemo,
)}
>
<>
);
}
#### Read PageState
- Client component
`tsx`
'use client';
`tsx
export default function ClientComponent() {
const [pageState, setPageState] = usePageState
const { a, d } = pageState;
return (
<>
a={a}, d={d}
);
}
`
- Server component
`tsx
export default async function ServerComponent() {
const pageState = getPageState
const { a, d } = pageState;
return (
<>
a={a}, d={d}
);
}
`
#### Write PageState
Client-component can use this.
PageState updates will result in a re-render of all components subscribed to that Page-component.
`tsx`
'use client';
`tsx`
export default function ClientComponentInput() {
const [pageState, setPageState] = usePageState
const { a } = pageState;
return (
{
setPageState({
...pageState,
a: e.target.value,
}, pathDemo);
}}
/>
);
}
useState and usePageState` can be used together.
You can play with the example code here.
https://github.com/vteacher-online/nrstate-demo
Then, http://localhost:3000/