How to create AJAX Request and what's the endpoint(URL) where I use my form in which I have two fields email and message(textarea) to collect user email and message?

Hi Klaviyo Community Have a Good Day😊

I’m working on a shopify project and want to collect user email and message in Klaviyo. I want to use my own popup form(email, message fields and a submit button) and send AJAX request to Klaviyo. Please help me what’s the endpoint where AJAX request send to like https://manage.kmail-lists.com/ajax/subscriptions/subscribe but it’s provide information whether the user is subscribed to a specific email.

Below is my code:

requestSwatchForm.addEventListener('submit', function(e) {

e.preventDefault();

var settings = {

"async": true,

"crossDomain": true,

"url": "https://manage.kmail-lists.com/ajax/subscriptions/subscribe",

"method": "POST",

"headers": {

"content-type": "application/x-www-form-urlencoded",

"cache-control": "no-cache"

},

"data": {

"g": "S2RrTD", // replace LIST_ID with id of list to be subscribed

"email": "abidarif982@gmail.com",

// pass in additional fields, each additional field

// must be included in the $fields string separated by commas

"$fields": "$message, $first_name, $last_name",

"$message": "Lorem ipsum dolor sit amet consectetur adipisicing elit. Maxime mollitia, molestiae quas vel sint commodi repudiandae consequuntur voluptatum laborum numquam blanditiis",

"$first_name": "Abid",

"$last_name": "Arif"

}

};

$.ajax(settings).done(function(response) {

console.log(response);

})

});