如何将数据从 ajax 传递到 django 视图？

Question

我有以下 ajax 脚本。这将获取公钥并将所有其他详细信息发送到 Stripe 服务器进行付款，但我需要将价格的动态值发送到 item_line。

fetch("/config/")
.then((result) => { return result.json();})
.then((data) => {
  // Initialize Stripe.js
  var data1 = $('#priceId').html();


  const stripe = Stripe(data.publicKey);
  // Event handler
  let submitBtn = document.querySelector("#submitBtn");
  if (submitBtn !== null) {
    submitBtn.addEventListener("click", () => {
      var d = $('#priceId').html();
      console.log(d) // this value need to send to my view...
      
    fetch("/create-checkout-session/")
      .then((result) => { 
        return result.json();
       })
      .then((data) => {
        // Redirect to Stripe Checkout
        return stripe.redirectToCheckout({sessionId: data.sessionId})
      })
      .then((res) => {
        console.log(res);
      });
    });
  }
});

如何通过以及如何在视图文件中捕获？ 我目前的看法是：

@csrf_exempt
def create_checkout_session(request):
    if request.method == 'GET':
        domain_url = 'http://localhost:8000/'
        stripe.api_key = settings.STRIPE_SECRET_KEY
        try:
            checkout_session = stripe.checkout.Session.create(
                client_reference_id=request.user.id if request.user.is_authenticated else None,
                success_url=domain_url + 'success?session_id={CHECKOUT_SESSION_ID}',
                cancel_url=domain_url + 'cancel/',
                payment_method_types=['card'],
                mode='subscription',
                line_items=[
                    {
                        'price': settings.STRIPE_PRICE_ID, # here need dynamic selected value
                        'quantity': 1,
                    }
                ]
            )
            return JsonResponse({'sessionId': checkout_session['id']})
        except Exception as e:
            return JsonResponse({'error': str(e)})

请帮帮我。

Answer 1

方法很多，我举个简单的例子：

script.js

// wrap request in a function:
function send_data() {
  
  $.ajax({
    url : 'the_url',
    data : {
      'csrfmiddlewaretoken' : '<the-token>',
      'key1' : 'val1',
    },
    method : 'POST',
    success : success_function // reference to below
  });

}

// trigger send_data on some event:
$('<the-selector').on('<some-event>', {}, send_data);

// i.e. send data on button click:
$('#button-id').on('click', {}, send_data);

// success function:
function success_function(response) {

  // unpack response:
  val2 = response.key2;

  // do some logic:
  ...

}

views.py

def my_view_function(request):

    # unpack request from front end:
    val1 = request.POST['key1']

    # do some logic:
    ...

    # pack response:
    response = {
        'key2' : 'val2',
    }

    return JsonResponse(response)