How to Send Google Form Responses to Your Own API Endpoint
CustomGForm lets you dispatch real-time HTTP POST requests to your own API, backend server, or custom middleware every time someone submits your form. For a general introduction to webhooks with Zapier, Make, and n8n, start with how to use webhooks in Google Forms.
Webhooks are available on the Starter and Pro plans. Compare plans.
How It Works
When a respondent submits your embedded or hosted form, CustomGForm immediately executes an HTTP POST to your destination endpoint containing the response ID, submission timestamp, question labels, and typed respondent answers.
Step 1: Open the Connect Tab
- From the CustomGForm dashboard, select your form.
- Click on the Connect tab in the top navigation bar.
- On the Webhook card, click Connect (or the settings gear if already connected).
Step 2: Configure Your Endpoint URL
- In the Endpoint input field, enter the destination URL where your server accepts
POSTrequests:https://api.yourdomain.com/v1/leads - Ensure your server returns an HTTP status code between
200and299upon successful receipt.
Step 3: Test Your Webhook with a Mock Event
To ensure your server parses the payload correctly before putting your form live:
- Click Send Test Event.
- CustomGForm instantly dispatches a test payload matching your form's schema with
isTest: true. - Check the inline diagnostics badge for latency and response status (
200 OK). - Click Save Changes.
JSON Payload Structure
{
"formId": "65b...",
"responseId": "66a...",
"status": "COMPLETED",
"submittedAt": "2026-10-05T18:45:00.000Z",
"fields": {
"Full Name": "Jane Doe",
"Email": "[email protected]"
},
"data": [
{ "id": "entry_1", "label": "Full Name", "value": "Jane Doe" },
{ "id": "entry_2", "label": "Email", "value": "[email protected]" }
],
"meta": {
"source": "CustomGForm"
}
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