django ajax request returning a 403 error

Question

django ajax request returning a 403 error

While attempting to compile project https://github.com/kannan4k/django-carpool, I encountered an error during an ajax call. The error message displayed was: "Failed to load resource: the server responded with a status of 400 (BAD REQUEST)."

I suspect that this issue is related to the ajax post request and CSRF tokens based on my settings. I have disabled the

"django.middleware.csrf.CsrfViewMiddleware"

and have a button in the new_trip page that triggers an ajax request.

Below is a snippet from my view:

@login_required
def save_journey(request):

    if request.is_ajax() and request.method == "POST":
        try:
            res = json.loads(request.body)
            cords = res['cords']
            cords = [[x['d'], x['e']] for x in cords]
            distance = res['distance']
            start_place = res['start']
            end_place = res['end']
            clusters = clusterize_latlngs(cords, distance)
            time = datetime.datetime.strptime(res['time'], "%m/%d/%Y %H:%M")
            Trip.objects.create(user=request.user, time=time, cluster=json.dumps(clusters), travel_distance=distance,
                                start_place=start_place, end_place=end_place)

            return HttpResponse()
        except:
            return HttpResponseBadRequest()
    else:
        return HttpResponseNotAllowed(['POST'])

Additionally, there is an Ajax call implemented in home.js file:

function postData() {
    // Code implementation here...
}

The code seems to be unable to reach the /save_journey/ URL despite trying various solutions found on Stack Overflow. If anyone has insights on why this may be happening, any help would be greatly appreciated.

javascript jquery python ajax django

Answer 1

Answer №1

It is highly advised to never disable the csrftoken unless you are fully aware of what you are doing. This token plays a crucial role in the security measures implemented by Django.

Let's take a look at how Ajax can be utilized with Django along with the csrftoken:

You can employ Ajax Post to dispatch JSON to Django and then manage the parameters as a dict(). Here's an illustration:

In a web browser (using JQuery/JavaScript):

function newModule() {

    var my_data = $("#my_element").val(); // Input your desired value.

    $.ajax({
        url: "{% url 'modules' %}",       // Handler defined in Django URLs.
        type: "POST",                     // Method type.
        dataType: "json",                 // Data format as JSON (Default).
        data: {
            path: my_data,                // Key in dictionary (JSON).
            csrfmiddlewaretoken:
                     '{{ csrf_token }}'   // Unique key for CSRF protection.
        },

        success: function (json) {

            // Actions to perform on successful response.

        },

        error: function (xhr, errmsg, err) {

            // Actions to take upon failure.

        }

    });

In the server-side engine (using Python):

def handle(request):

    # Check for POST request containing the specified key.
    if request.method == 'POST' and 'my_data' in request.POST.keys():

        # Retrieve the value associated with the key.
        my_data = request.POST['my_data']

    # Additional logic can be added here.

We hope this explanation proves useful.

Answer 2

It is highly advised to never disable the csrftoken unless you are fully aware of what you are doing. This token plays a crucial role in the security measures implemented by Django.

Let's take a look at how Ajax can be utilized with Django along with the csrftoken:

You can employ Ajax Post to dispatch JSON to Django and then manage the parameters as a dict(). Here's an illustration:

In a web browser (using JQuery/JavaScript):

function newModule() {

    var my_data = $("#my_element").val(); // Input your desired value.

    $.ajax({
        url: "{% url 'modules' %}",       // Handler defined in Django URLs.
        type: "POST",                     // Method type.
        dataType: "json",                 // Data format as JSON (Default).
        data: {
            path: my_data,                // Key in dictionary (JSON).
            csrfmiddlewaretoken:
                     '{{ csrf_token }}'   // Unique key for CSRF protection.
        },

        success: function (json) {

            // Actions to perform on successful response.

        },

        error: function (xhr, errmsg, err) {

            // Actions to take upon failure.

        }

    });

In the server-side engine (using Python):

def handle(request):

    # Check for POST request containing the specified key.
    if request.method == 'POST' and 'my_data' in request.POST.keys():

        # Retrieve the value associated with the key.
        my_data = request.POST['my_data']

    # Additional logic can be added here.

We hope this explanation proves useful.

django ajax request returning a 403 error

Answer №1

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