slapform

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Slapform is the official npm module for Slapform, a backend form processing service for contact forms, payment forms, and more—perfectly suited for static sites.

Quick start

1. Create a form

Go to slapform.com/dashboard/forms/new to create your form. Copy the Form ID when you're done.

2. Add to your site

Script tag (no build tools needed):

<script src="https://cdn.jsdelivr.net/npm/slapform@latest/dist/slapform.min.js"></script>
<script>
  var slapform = new Slapform();

  slapform.submit('YOUR_FORM_ID', {
    name: 'Jon Snow',
    message: 'Hello World!',
  })
  .then(function (response) {
    console.log('Success!', response);
  })
  .catch(function (error) {
    console.error('Failed:', error.message);
  });
</script>

NPM:

npm install slapform

// ESM
import Slapform from 'slapform';

// CommonJS
const Slapform = require('slapform');

const slapform = new Slapform({ formId: 'YOUR_FORM_ID' });

const response = await slapform.submit({
  name: 'Jon Snow',
  message: 'Hello World!',
});

HTML form (no JavaScript needed)

You can use Slapform without any JavaScript by pointing your HTML form's action to the API:

<form method="POST" action="https://api.slapform.com/YOUR_FORM_ID">
  <input type="email" name="email">
  <textarea name="message"></textarea>
  <button type="submit">Submit</button>
</form>

API

new Slapform(options)

Option	Default	Description
formId	''	Your form ID (also accepts form)
endpoint	'https://api.slapform.com'	API endpoint

slapform.submit(formId?, data, options?)

Submits form data. Returns a promise that resolves with the API response.

• formId (optional) — Form ID string. Overrides the constructor's formId
• data — Object with the fields you want to submit
• options — Optional overrides for formId and endpoint

// Pass formId inline
slapform.submit('YOUR_FORM_ID', { message: 'Hello' });

// Or use the constructor default and just pass data
const sf = new Slapform({ formId: 'YOUR_FORM_ID' });
sf.submit({ message: 'Hello' });

// Override formId via options
sf.submit({ message: 'Hello' }, { formId: 'DIFFERENT_FORM_ID' });

Name triggers

Use special field names to trigger server-side behavior:

slapform.submit('YOUR_FORM_ID', {
  name: 'Jon Snow',
  message: 'Hello World!',
  slap_subject: 'My Favorite Message',
  slap_replyto: '[e-mail]',
  slap_debug: false,
  slap_honey: '',
});

See the name trigger documentation for details.

Features

• Submit data via HTML forms, AJAX, or this npm module
• Submissions are sent directly to your email
• Access submissions stored securely for up to 12 months
• Spam protection
• Zapier integration

Development

npm start        # Watch mode - rebuilds on file changes
npm run build    # One-time build (ESM, CJS, IIFE)
npm test         # Run tests

Build outputs

File	Format	Use case
dist/index.mjs	ESM	import in modern bundlers
dist/index.js	CJS	require() in Node.js
dist/slapform.min.js	IIFE (minified)	<script> tag / CDN

License

MIT