]
08-02-2023, 04:10 PM
I am trying to integrate jquery into a web application I am making with Django framework. I am however having a hard time trying to make a simple `ajax` call to work. My template file that contains the form html and javascript to handle the ajax call looks like:
<script type="text/javascript">
$(document).ready(function() {
$( "#target" ).submit(function() {
console.log('Form was submitted');
$.ajax({
type: "POST",
url: "/hello/", // or just url: "/my-url/path/"
data: {
query: $( "#query" ).val()
},
success: function(data) {
console.log(data);
}
});
return false;
});
})
</script>
<form id="target" action="." method="post">{% csrf_token %}
<input id= "query" type="text" value="Hello there">
<input type="submit" value="Search Recent Tweets">
</form>
My `views.py` that is supposed to handle the ajax call looks like:
from django.core.context_processors import csrf
from django.shortcuts import render_to_response
from django.template.loader import get_template
from django.template import Context,RequestContext
from django.views.decorators.csrf import ensure_csrf_cookie
from django.http import HttpResponse
# access resource
def hello(request):
c = {}
c.update(csrf(request))
if request.is_ajax():
t = get_template('template.html')
#html = t.render(Context({'result': 'hello world'}))
con = RequestContext(request, {'result': 'hello world'})
return render_to_response('template.html', c, con)
else:
return HttpResponse('Not working!')
I have tried to follow the official documentation on [Cross-Site Request Forgery Protection](
POST
How do I pass the `result` variable along with my http response and get the ajax call to work smoothly? Any help is deeply appreciated.
**Edit-1**
I wasn't supposedly passing the `csrf` token along with my post request. SO as per the documentation I added the following code to my template javascript:
function getCookie(name) {
var cookieValue = null;
if (document.cookie && document.cookie != '') {
var cookies = document.cookie.split(';');
for (var i = 0; i < cookies.length; i++) {
var cookie = jQuery.trim(cookies[i]);
// Does this cookie string begin with the name we want?
if (cookie.substring(0, name.length + 1) == (name + '=')) {
cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
break;
}
}
}
return cookieValue;
}
var csrftoken = getCookie('csrftoken');
console.log(csrftoken);
//Ajax call
function csrfSafeMethod(method) {
// these HTTP methods do not require CSRF protection
return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
}
$.ajaxSetup({
crossDomain: false, // obviates need for sameOrigin test
beforeSend: function(xhr, settings) {
if (!csrfSafeMethod(settings.type)) {
xhr.setRequestHeader("X-CSRFToken", csrftoken);
}
}
});
When I refresh the template html page in the browser, I get `null` in the console, suggesting that the cookie is not set or not defined. What am I missing?
<script type="text/javascript">
$(document).ready(function() {
$( "#target" ).submit(function() {
console.log('Form was submitted');
$.ajax({
type: "POST",
url: "/hello/", // or just url: "/my-url/path/"
data: {
query: $( "#query" ).val()
},
success: function(data) {
console.log(data);
}
});
return false;
});
})
</script>
<form id="target" action="." method="post">{% csrf_token %}
<input id= "query" type="text" value="Hello there">
<input type="submit" value="Search Recent Tweets">
</form>
My `views.py` that is supposed to handle the ajax call looks like:
from django.core.context_processors import csrf
from django.shortcuts import render_to_response
from django.template.loader import get_template
from django.template import Context,RequestContext
from django.views.decorators.csrf import ensure_csrf_cookie
from django.http import HttpResponse
# access resource
def hello(request):
c = {}
c.update(csrf(request))
if request.is_ajax():
t = get_template('template.html')
#html = t.render(Context({'result': 'hello world'}))
con = RequestContext(request, {'result': 'hello world'})
return render_to_response('template.html', c, con)
else:
return HttpResponse('Not working!')
I have tried to follow the official documentation on [Cross-Site Request Forgery Protection](
[To see links please register here]
) and also looked at several stackoverflow questions addressing a similar problem. I have included the `{% csrf_token %}` in my `html` template file but it still doesn't seem to be working. I get an error in the console suggesting that the ajax call failed:POST
[To see links please register here]
403 (FORBIDDEN)How do I pass the `result` variable along with my http response and get the ajax call to work smoothly? Any help is deeply appreciated.
**Edit-1**
I wasn't supposedly passing the `csrf` token along with my post request. SO as per the documentation I added the following code to my template javascript:
function getCookie(name) {
var cookieValue = null;
if (document.cookie && document.cookie != '') {
var cookies = document.cookie.split(';');
for (var i = 0; i < cookies.length; i++) {
var cookie = jQuery.trim(cookies[i]);
// Does this cookie string begin with the name we want?
if (cookie.substring(0, name.length + 1) == (name + '=')) {
cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
break;
}
}
}
return cookieValue;
}
var csrftoken = getCookie('csrftoken');
console.log(csrftoken);
//Ajax call
function csrfSafeMethod(method) {
// these HTTP methods do not require CSRF protection
return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
}
$.ajaxSetup({
crossDomain: false, // obviates need for sameOrigin test
beforeSend: function(xhr, settings) {
if (!csrfSafeMethod(settings.type)) {
xhr.setRequestHeader("X-CSRFToken", csrftoken);
}
}
});
When I refresh the template html page in the browser, I get `null` in the console, suggesting that the cookie is not set or not defined. What am I missing?
