Server-Act
A simple React server action builder that provides input validation with zod.
Installation
npm install server-act zod
yarn add server-act zod
pnpm add server-act zod
Usage
'use server';
import {serverAct} from 'server-act';
import {z} from 'zod';
export const sayHelloAction = serverAct
.input(
z.object({
name: z.string(),
}),
)
.action(async ({input}) => {
return `Hello, ${input.name}`;
});
'use client';
import {sayHelloAction} from './action';
export const ClientComponent = () => {
const onClick = () => {
const message = await sayHelloAction({name: 'John'});
console.log(message);
};
return (
<div>
<button onClick={onClick}>Trigger action</button>
</div>
);
};
With Middleware
'use server';
import {serverAct} from 'server-act';
import {z} from 'zod';
export const sayHelloAction = serverAct
.middleware(() => {
const userId = '...';
return {userId};
})
.input(
z.object({
name: z.string(),
}),
)
.action(async ({ctx, input}) => {
console.log('User ID', ctx.userId);
return `Hello, ${input.name}`;
});
useFormState
Support
useFormState
Documentation:
We recommend using zod-form-data for input validation.
'use server';
import {serverAct} from 'server-act';
import {z} from 'zod';
import {zfd} from 'zod-form-data';
export const sayHelloAction = serverAct
.input(
zfd.formData({
name: zfd.text(
z
.string({required_error: `You haven't told me your name`})
.nonempty({message: 'You need to tell me your name!'}),
),
}),
)
.formAction(async ({input, formErrors, ctx}) => {
if (formErrors) {
return {formErrors: formErrors.formErrors.fieldErrors};
}
return {message: `Hello, ${input.name}!`};
});
'use client';
import {sayHelloAction} from './action';
export const ClientComponent = () => {
const [state, dispatch] = useFormState(sayHelloAction, {formErrors: {}});
return (
<form action={dispatch}>
<input name="name" required />
{state.formErrors?.name?.map((error) => <p key={error}>{error}</p>)}
<button type="submit">Submit</button>
{!!state.message && <p>{state.message}</p>}
</form>
);
};