Django csrf token for Ajax

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I have given {% csrf_token %} inside the form. Do I have to give another {% csrf_token %} inside the AJAX $.ajax({ .......... )} ?

<form method="post" data-validate-username-url="{% url 'validate_username' %}">
    {% csrf_token %}
    {{ form.as_p }}
    <button type="submit">Sign up</button>
  </form>


    <script src="https://code.jquery.com/jquery-3.1.0.min.js"></script>


    <script>
    $("#id_username").change(function () {
      console.log($(this).val());
      var form = $(this).closest("form");
      $.ajax({
        url: form.attr("data-validate-username-url"),
        data: form.serialize(),
        dataType: 'json',
        success: function (data) {
          if (data.is_taken) {
            alert(data.error_message);
          }
        }
      });

    });
  </script>

See below for how I changed your code. The csrf_token is assigned to a variable with Django templating. You can produce this variable in any of your Javascript code.

The token is then included in the header

 <script>
    var token = '{{csrf_token}}';

    $("#id_username").change(function () {
      console.log($(this).val());
      var form = $(this).closest("form");
      $.ajax({
        headers: { "X-CSRFToken": token },
        url: form.attr("data-validate-username-url"),
        data: form.serialize(),
        dataType: 'json',
        success: function (data) {
          if (data.is_taken) {
            alert(data.error_message);
          }
        }
      });

    });
  </script>

Django CSRF check failing with an Ajax POST request, See below for how I changed your code. The csrf_token is assigned to a variable with Django templating. You can produce this variable in any  Cross Site Request Forgery protection¶ The CSRF middleware and template tag provides easy-to-use protection against Cross Site Request Forgeries. This type of attack occurs when a malicious website contains a link, a form button or some JavaScript that is intended to perform some action on your website, using the credentials of a logged-in

The documentation very well explained how to use AJAX https://docs.djangoproject.com/en/2.1/ref/csrf/

  1. Get this library https://github.com/js-cookie/js-cookie/
  2. Add this var csrftoken = Cookies.get('csrftoken');
  3. The last step is configure ajax setup

    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);
        }
      }
    });
    

Django csrf token for Ajax, middleware which's included by default with each new project. Consume REST Services with AJAX and CSRF protection in Django django recognize your incoming request with it’s CSRF protection token in your request header

Update to the steps above - as the Django documentation indicates you can use the Javascript Cookie library to do a Cookies.get('csrftoken'). Also, I had to add {% csrf_token %} before the function call. Might be obvious, but I didn't know so providing it here to help others

How to pass along CSRF token in an AJAX post request for a form , from client is the same as the one generated previously; if not it will not authorise the request. In order to make AJAX requests, you need to include CSRF token in the HTTP header, as described in the Django documentation. CORS Cross-Origin Resource Sharing is a mechanism for allowing clients to interact with APIs that are hosted on a different domain.

Adding the Django CSRF Protection to React Forms, While the above method can be used for AJAX POST requests, it has The recommended source for the token is the csrftoken cookie,  Did some further research and found that I needed to pass a CSRF token. I have gone through a lot of tutorials online but the only solutions I was able to find were of JQuery and I have no idea how that syntax works. I need to know how to pass a CSRF token via Javascript AJAX based post for a django project. My code is;

Working with CSRF protection in Django - davidchia, "Take a close look at possible CSRF / XSRF vulnerabilities on your own In order to make AJAX requests, you need to include CSRF token in the HTTP header,  The difference between Django 1.2.4 and 1.2.5 was the requirement for a CSRF token for AJAX requests. I came across this problem on Django 1.3 and it was caused by the CSRF cookie not being set in the first place.

Cross Site Request Forgery protection, * setup JQuery's AJAX methods to setup CSRF token in the request before sending it off. * http://stackoverflow.com/questions/5100539/django-csrf-check-​failing-  Tagged with django, python, javascript, webdev. How to send Django form with AJAX As you know we are using csrf_token to make post request and it is a just