Update user credit card details using Stripe + Django

<form method="post" id="payment-form">
            {% csrf_token %}
            <div class="col-md-4 form-row">
                <label for="card-element">Credit or Debit Card</label>

                <div id="card-element">

                </div>

                <div id="alert alert-warning card-errors" role="alert"></div>
                <br>
                <br>
                <button class="btn btn-outline-dark" type="submit" class="btn pay-btn col-sm-2">Update</button>
            </div>
        </form>

.StripeElement {
            box-sizing: border-box;

            height: 40px;

            padding: 10px 12px;

            border: 1px solid transparent;
            border-radius: 4px;
            background-color: white;

            box-shadow: 0 1px 3px 0 #e6ebf1;
            -webkit-transition: box-shadow 150ms ease;
            transition: box-shadow 150ms ease;
            }

            .StripeElement--focus {
            box-shadow: 0 1px 3px 0 #cfd7df;
            }

            .StripeElement--invalid {
            border-color: #fa755a;
            }

            .StripeElement--webkit-autofill {
            background-color: #fefde5 !important;
            }

var stripe = Stripe("PUBLIC_STRIPE_TOKEN");
        // Create an instance of Elements.
        var elements = stripe.elements();

        // Custom styling can be passed to options when creating an Element.
        // (Note that this demo uses a wider set of styles than the guide below.)
        var style = {
        base: {
            color: '#32325d',
            fontFamily: '"Helvetica Neue", Helvetica, sans-serif',
            fontSmoothing: 'antialiased',
            fontSize: '16px',
            '::placeholder': {
            color: '#aab7c4'
            }
        },
        invalid: {
            color: '#fa755a',
            iconColor: '#fa755a'
        }
        };

        // Create an instance of the card Element.
        var card = elements.create('card', {style: style});

        // Add an instance of the card Element into the `card-element` <div>.
        card.mount('#card-element');

        // Handle real-time validation errors from the card Element.
        card.addEventListener('change', function(event) {
        var displayError = document.getElementById('card-errors');
        if (event.error) {
            displayError.textContent = event.error.message;
        } else {
            displayError.textContent = '';
        }
        });

        // Handle form submission.
        var form = document.getElementById('payment-form');
        form.addEventListener('submit', function(event) {
        event.preventDefault();

        stripe.createToken(card).then(function(result) {
            if (result.error) {
            // Inform the user if there was an error.
            var errorElement = document.getElementById('card-errors');
            errorElement.textContent = result.error.message;
            } else {
            // Send the token to your server.
            stripeTokenHandler(result.token);
            }
        });
        });

        // Submit the form with the token ID.
        function stripeTokenHandler(token) {
        // Insert the token ID into the form so it gets submitted to the server
        var form = document.getElementById('payment-form');
        var hiddenInput = document.createElement('input');
        hiddenInput.setAttribute('type', 'hidden');
        hiddenInput.setAttribute('name', 'stripeToken');
        hiddenInput.setAttribute('value', token.id);
        form.appendChild(hiddenInput);

        // Submit the form
        form.submit();
        }

from django.shortcuts import render 
import stripe 

stripe.api_key = 'YOUR_STRIPE_SECRET_KEY'

card_data = stripe.Customer.create_source(
      user_setting.stripe_customer_id,
      source=request.POST['stripeToken']
)

stripe.Customer.modify_source(
      user_setting.stripe_customer_id,
      card_data['id']
)

return redirect('some-view-name')