next-safe-action Form Integration

Options

Quick Start — useStateAction Form

"use client";

import { useStateAction } from "next-safe-action/hooks";
import { submitContact } from "@/app/actions";

export function ContactForm() {
  const { formAction, result, isPending, hasSucceeded } = useStateAction(submitContact, {
    onSuccess: () => toast.success("Message sent!"),
  });

  return (
    <form action={formAction}>
      <input name="name" required />
      <input name="email" type="email" required />
      <textarea name="message" required />

      {result.validationErrors?.email && (
        <p>{result.validationErrors.email._errors?.[0]}</p>
      )}
      {result.serverError && <p>{result.serverError}</p>}
      {hasSucceeded && <p>Message sent!</p>}

      <button type="submit" disabled={isPending}>
        {isPending ? "Sending..." : "Send"}
      </button>
    </form>
  );
}

Note: useStateAction requires the server action to be defined with .stateAction() instead of .action(). See the hooks skill for the full decision table on when to use useAction vs useStateAction.

Quick Start — Native Form

"use client";

import { useAction } from "next-safe-action/hooks";
import { submitContact } from "@/app/actions";

export function ContactForm() {
  const { execute, result, isPending } = useAction(submitContact);

  return (
    <form
      onSubmit={(e) => {
        e.preventDefault();
        const fd = new FormData(e.currentTarget);
        execute({
          name: fd.get("name") as string,
          email: fd.get("email") as string,
          message: fd.get("message") as string,
        });
      }}
    >
      <input name="name" required />
      <input name="email" type="email" required />
      <textarea name="message" required />

      {result.validationErrors && (
        <p>{result.validationErrors.email?._errors?.[0]}</p>
      )}
      {result.serverError && <p>{result.serverError}</p>}
      {result.data && <p>Message sent!</p>}

      <button type="submit" disabled={isPending}>
        {isPending ? "Sending..." : "Send"}
      </button>
    </form>
  );
}

Quick Start — React Hook Form Adapter

"use client";

import { useHookFormAction } from "@next-safe-action/adapter-react-hook-form/hooks";
import { zodResolver } from "@hookform/resolvers/zod";
import { z } from "zod";
import { submitContact } from "@/app/actions";

const schema = z.object({
  name: z.string().min(1, "Name is required"),
  email: z.string().email("Invalid email"),
  message: z.string().min(10, "Message must be at least 10 characters"),
});

export function ContactForm() {
  const { form, handleSubmitWithAction, action } = useHookFormAction(
    submitContact,
    zodResolver(schema),
    {
      actionProps: {
        onSuccess: () => toast.success("Message sent!"),
      },
    }
  );

  return (
    <form onSubmit={handleSubmitWithAction}>
      <input {...form.register("name")} />
      {form.formState.errors.name && <p>{form.formState.errors.name.message}</p>}

      <input {...form.register("email")} />
      {form.formState.errors.email && <p>{form.formState.errors.email.message}</p>}

      <textarea {...form.register("message")} />
      {form.formState.errors.message && <p>{form.formState.errors.message.message}</p>}

      {action.result.serverError && <p>{action.result.serverError}</p>}

      <button type="submit" disabled={action.isPending}>
        {action.isPending ? "Sending..." : "Send"}
      </button>
    </form>
  );
}

Supporting Docs

• Native form submission patterns
• React Hook Form adapter in depth
• File uploads

Entry Points