React Django CSRF token missing or incorrect - reactjs

Question

In action file the code:
...
const config = {
headers:{
'Content-type': 'application/json'
}
}
const {data} = await axios.post('http://localhost:8000/api/register/',
{'email':email, 'password':password}, config)
...
It's working; then localhost:8000 moved to package.json as a proxy, after that got an issue CSRF token missing or incorrect, how to fix that, thanks.
Application was restarted with no changes. Furthermore, the request has changed to localhost:3000 instead of 8000.

Answer 1

Django can provide the CSRF token in your cookies with a decorator. Then you can get it from your cookies and add it as a HTTP header:
views.py:
from django.views.decorators.csrf import ensure_csrf_cookie
# add this decorator to your main view
# (the one which serves your first html/javascript code, not the /api/register one)
#ensure_csrf_cookie
def index(request):
...
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 = cookies[i].trim();
// 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;
}
...
const config = {
headers:{
'Content-type': 'application/json',
'X-CSRFToken': getCookie("csrftoken") // added the csrf cookie header
}
}
const {data} = await axios.post('http://localhost:8000/api/register/',
{'email':email, 'password':password}, config)