How to add JSRO CSRF token to jQuery POST request header?

Question

I am trying to create a Django form with dynamically filled fields: that is, when one field ( checkin_type) is selected in the drop-down menu , other fields are automatically filled with the corresponding data. To this end, I would like to send a POST request to the server as soon as a drop-down list option is selected.

So far I have tried the following template (following https://docs.djangoproject.com/en/2.0/ref/csrf/ ):

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/js-cookie@2/src/js.cookie.min.js"></script>
<script>
    $(document).ready(function(){
        var csrftoken = Cookies.get('csrftoken');

        $(".auto-submit").change(function() {
            $.post({
                url: "{% url 'get-checkin-type' %}",
                data: $(".auto-submit option:selected").val(),
                headers: {
                    X-CSRFToken: csrftoken
                }
            })
        });
    });
</script>


<form action="" method="post">{% csrf_token %}
    {% for field in form %}
        <div class="{% if field.name == 'checkin_type' %}auto-submit{% endif %}">
            {{ field.errors }}
            {{ field.label_tag }}
            {{ field }}
        </div>
    {% endfor %}
    <input type="submit" value="Send message" />
</form>

However, when I select the drop-down list, I get

new: 17 Uncaught SyntaxError: Unexpected token -

which comes from the line X-CSRFToken: csrftoken:

- , ? ( https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Unexpected_token, ).

, , jQuery CSRF $.post() , CSRF POST data, , ,

: XMLHttpRequest X-CSRFToken CSRF.

Answer 1

, .

$(".auto-submit").change(function() {
    $.post({
        url: "{% url 'get-checkin-type' %}",
        data: $(".auto-submit option:selected").val(),
        headers: {
            'X-CSRFToken': csrftoken
        }
    })
});

Answer 2

PSK , , , Django ( https://docs.djangoproject.com/en/2.0/ref/csrf/#setting-the-token-on-the-ajax-request), .ajaxSetup :

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/js-cookie@2/src/js.cookie.min.js"></script>
<script>
    $(document).ready(function(){
        var csrftoken = Cookies.get('csrftoken');

        function csrfSafeMethod(method) {
            // these HTTP methods do not require CSRF protection
            return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
        }
        $.ajaxSetup({
            beforeSend: function(xhr, settings) {
                if (!csrfSafeMethod(settings.type) && !this.crossDomain) {
                    xhr.setRequestHeader("X-CSRFToken", csrftoken);
                }
            }
        });

        $(".auto-submit").change(function() {
            $.post({
                url: "{% url 'get-checkin-type' %}",
                data: $(".auto-submit option:selected").val(),
            })
        });
    });
</script>