Developer Instructions for Capturing Data with a Webhook

Customize your website by integrating webhook triggers and automating data collection.

By Red Belt Team | Last Update: April 4, 2026

To get lead data or any data from your site you need to create an automation with a Webhook trigger.

1. On your computer, go to your Account
2. Click Automation in the left-side menu.
3. Click on the Create button.
4. Select Webhook from the trigger.
5. Click the Webhook gear icon to open webhook settings to obtain the webhook URL.
6. And now call a Post request to this Webhook URL, with the required data (firstName, lastName, email, and phone).
7. Click Save.

Do not delete the the Webhook and ensure you use the RBG WP Plugin or use your custom script to send lead data by POST request.

Request Body (JSON):

{
"firstName": "John",
"lastName": "Doe",
"email": "john@example.com",
"phone": "9876540000"
}

Validation Rules:

firstName → required, string
lastName → required, string
email → required, valid email format
phone → required, valid phone number

:point_right: If any field is missing or invalid → API should return 400 Bad Request

Important Notes

• Content-Type must be: application/json
• All fields are mandatory
• Do not send empty strings ("")
• Ensure proper email & phone format

Example: Using Fetch (JavaScript)

fetch(Endpoint: webhook URL, {
    method: "POST",
    headers: {
        "Content-Type": "application/json",
    },
    body: JSON.stringify({
        firstName: "John",
        lastName: "Doe",
        email: "john@example.com",
        phone: "9876543210",
    }),
}).then((res) => res.json())
.then((data) => console.log(data))
.catch((err) => console.error(err));

Expected Success Response

{
    "success": true,
    "message": "Execution successfully"
}

Summary

• Method → POST
• Endpoint → Red belt gym webhook url
• Body → JSON with 4 required fields
• Response → success or validation error

Common Questions & Troubleshooting

Why is my website form submitting without the required fields?

Your website form is likely submitting without required fields because the client-side (browser) validation is being bypassed or overridden, or because validation is only being performed on the frontend, which can be skipped by bots or older browsers.

How to Fix It

1. Use type="submit": Ensure your button is a submit type.
2. Add Backend Validation: Check that mandatory fields are not empty in your PHP/Node/backend script.
3. Check JavaScript submit(): If using JS, implement checkValidity() before calling .submit().
4. Use novalidate: If you are building custom validation, add novalidate to the < form > tag to prevent browser-native tooltips from showing while you use your own.