How to integrate customise subscriptions into shopify website

Actually, i want to integrate Subscription on my Shopify website, just like we are having after installing Paywhirl Subscription Payment app.
So, i want to know the process that how can we integrate Subscription using API calls.
Right now i am getting the API response as

{
    "data": {
        "sellingPlanGroupCreate": {
            "sellingPlanGroup": {
                "id": "gid://shopify/SellingPlanGroup/185729069"
            },
            "userErrors": []
        }
    },
    "extensions": {
        "cost": {
            "requestedQueryCost": 10,
            "actualQueryCost": 10,
            "throttleStatus": {
                "maximumAvailable": 1000.0,
                "currentlyAvailable": 990,
                "restoreRate": 50.0
            }
        }

Hi @ManishaSingh ,
Here is a step-by-step documentation on how you can build support for subscriptions in your app: https://shopify.dev/apps/subscriptions

Thanks

Hi @pranab ,
Thanks for the link. I have gone through it but not able to understand how do we customise Subscription from UI. Means how we relate response that we are getting from API to UI.

Thanks