n8n

Connect Formoar to n8n to build self-hosted workflow automations with your form submissions. Use Formoar's webhook integration to trigger n8n workflows whenever someone submits your form.

This integration uses Formoar's built-in webhook feature. You'll need a Starter plan or higher and an n8n instance (cloud or self-hosted).

How it works

n8n receives form submissions through a Webhook trigger node. You create a webhook URL in n8n, then add it as a webhook integration in Formoar. Every new submission triggers your n8n workflow.

Setup

Step 1: Create a webhook trigger in n8n

Open your n8n instance and create a new workflow
Add a Webhook node as the trigger
Set the HTTP method to POST
Copy the Production URL from the webhook node (it looks like https://your-n8n.com/webhook/xxxxx)

Use the Production URL, not the test URL. The test URL only works when the workflow editor is open.

Step 2: Add the webhook in Formoar

Go to your form's Integrations tab in the Formoar dashboard
Click Webhook from the integration grid
Paste the n8n webhook URL
Give it a name like "n8n Workflow"
Click Add webhook

Step 3: Test the connection

In n8n, click Listen for test event on the webhook node
Submit a test entry to your Formoar form
n8n will receive the webhook and display the data
Click on the output to see the mapped fields

Step 4: Build your workflow

Add action nodes to process the submission data:

Google Sheets — Append rows to a spreadsheet
Send Email — via Gmail, Outlook, or SMTP
Slack / Discord — Post messages to channels
HTTP Request — Call any external API
IF / Switch — Branch logic based on field values
Code — Write custom JavaScript/Python
Database — Insert into Postgres, MySQL, MongoDB

Step 5: Activate

Toggle the workflow to Active. n8n will process webhooks in real-time.

Webhook payload format

Formoar sends the standard webhook payload to n8n:

Example payload

{
  "event": "submission.created",
  "form_name": "Contact Form",
  "submission_id": "abc123",
  "data": {
    "name": "Jane Doe",
    "email": "jane@example.com",
    "message": "Hello from the form!"
  }
}

In n8n, you can access fields using expressions like {{ '{{' }} $json.data.email {{ '}}' }}.

For added security, add a signing secret when creating the webhook in Formoar. Each request includes an X-Formoar-Signature header with an HMAC-SHA256 signature. Verify it in n8n with a Code node:

Signature verification (Code node)

const crypto = require('crypto')

const secret = 'your-signing-secret'
const payload = JSON.stringify($input.first().json)
const expected = 'sha256=' + crypto.createHmac('sha256', secret).update(payload).digest('hex')
const actual = $input.first().headers['x-formoar-signature']

if (actual !== expected) {
  throw new Error('Invalid webhook signature')
}

return $input.all()

Self-hosted considerations

If you're running n8n on your own server:

Make sure your n8n instance is accessible from the internet (Formoar needs to reach your webhook URL)
Use HTTPS with a valid certificate — Formoar requires HTTPS for webhook URLs (except localhost for local development)
If you're behind a firewall, whitelist Formoar's IP range or use a tunnel like Cloudflare Tunnel

Troubleshooting

Webhook not triggering — Verify the workflow is set to Active and the webhook URL is the production URL (not the test URL)
Connection refused — Check that your n8n instance is accessible from the public internet
SSL errors — Ensure your HTTPS certificate is valid and not self-signed
Missing data — Use the "Listen for test event" feature to inspect the exact payload structure

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