Contact form

{
  "version": 1,
  "title": "Contact",
  "fields": [
    {
      "id": "name",
      "type": "text",
      "label": "Name",
      "required": true,
      "validation": {
        "max_length": 120
      }
    },
    {
      "id": "email",
      "type": "email",
      "label": "Email",
      "required": true
    },
    {
      "id": "topic",
      "type": "select",
      "label": "Topic",
      "options": [
        {
          "value": "sales",
          "label": "Sales"
        },
        {
          "value": "support",
          "label": "Support"
        },
        {
          "value": "other",
          "label": "Something else"
        }
      ]
    },
    {
      "id": "message",
      "type": "textarea",
      "label": "Message",
      "required": true,
      "rows": 5,
      "validation": {
        "min_length": 10,
        "max_length": 5000
      }
    }
  ],
  "settings": {
    "submit_label": "Send message",
    "success_message": "Thanks. We'll reply by email."
  }
}

IKIFORM_SECRET_KEY=ik_sk_your_secret_key

"use server";

export interface ContactFormState {
  ok: boolean;
  message: string;
  fields?: Record<string, string[]>;
  values?: Record<string, string[]>;
}

export async function sendContactForm(_previous: ContactFormState, formData: FormData): Promise<ContactFormState> {
  const body = new URLSearchParams();
  for (const [name, value] of formData) {
    if (typeof value === "string" && !name.startsWith("$ACTION")) body.append(name, value);
  }
  const response = await fetch("https://ikiform.com/f/frm_xxxxxxxxxxxxxxxx", {
    method: "POST",
    headers: {
      Accept: "application/json",
      Authorization: `Bearer ${process.env.IKIFORM_SECRET_KEY}`,
    },
    body,
  });
  const result = await response.json();
  if (result.ok) return { ok: true, message: "Thanks. We'll reply by email." };
  const values = Object.fromEntries([...new Set(body.keys())].map((name) => [name, body.getAll(name)]));
  return { ok: false, message: result.error.message, fields: result.error.fields, values };
}

"use client";

import { useActionState } from "react";
import { type ContactFormState, sendContactForm } from "./actions";

const initial: ContactFormState = { ok: false, message: "" };

export function ContactForm() {
  const [state, action, pending] = useActionState(sendContactForm, initial);

  if (state.ok) return <p>{state.message}</p>;

  return (
    <form action={action}>
      <label htmlFor="name">Name</label>
      <input id="name" name="name" type="text" maxLength={120} required defaultValue={state.values?.name?.[0]} />
      {state.fields?.name ? <p>{state.fields.name[0]}</p> : null}
      <label htmlFor="email">Email</label>
      <input id="email" name="email" type="email" autoComplete="email" required defaultValue={state.values?.email?.[0]} />
      {state.fields?.email ? <p>{state.fields.email[0]}</p> : null}
      <label htmlFor="topic">Topic</label>
      <select id="topic" name="topic" defaultValue={state.values?.topic?.[0]}>
        <option value="">Choose one</option>
        <option value="sales">Sales</option>
        <option value="support">Support</option>
        <option value="other">Something else</option>
      </select>
      {state.fields?.topic ? <p>{state.fields.topic[0]}</p> : null}
      <label htmlFor="message">Message</label>
      <textarea id="message" name="message" rows={5} minLength={10} maxLength={5000} required defaultValue={state.values?.message?.[0]} />
      {state.fields?.message ? <p>{state.fields.message[0]}</p> : null}
      <input name="_gotcha" type="text" tabIndex={-1} autoComplete="off" hidden />
      {state.message && !state.fields ? <p role="alert">{state.message}</p> : null}
      <button disabled={pending}>{pending ? "Sending" : "Send message"}</button>
    </form>
  );
}