What are the solutions for fixing a JSONdecode issue in Django when using AJAX?

I am encountering a JSONDecodeError when attempting to send a POST request from AJAX to Django's views.py. The POST request sends an array of JSON data which will be used to create a model. I would greatly appreciate any helpful hints.

Error:

Exception Type: JSONDecodeError at /order-confirmation
Exception Value: Expecting value: line 1 column 1 (char 0)
Request information:
USER: ledi12

GET: No GET data

POST: No POST data

FILES: No FILES data

AJAX Request:

var new_array = JSON.stringify(array)
      $.ajax({
        url: 'http://localhost:8000/order-confirmation',
        type: 'POST',
        data: '{"array":"' + new_array+'"}',
        processData: false,
        contentType: "application/json",
        dataType: "json",
        headers: {"X-CSRFToken":'{{ csrf_token }}'},
        success: function (result) {
            console.log(result.d);
        },
        error: function (result) {
            console.log(result);
        }
      });

Views:

@csrf_exempt
def order_confirmation(request):

    if request.method == 'POST':
        data = json.loads(r"request.body").read()
        print(data)
        return HttpResponse(status=200) 
    else:
        return render(request, 'main_templates/order_confirmation.html')

Answer №1

The error you're encountering stems from the JSON library's inability to properly parse the string. To fix this issue, there are a few adjustments your code should make. First, remove the 'r' character near request.body(). Second, remove the 'read()' function in json.loads(). It's advisable to preprocess your array into a string and then pass it directly to ajax. The data field should only contain the string. Here is how your ajax code snippet should appear:

data: new_array

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