如何将数据从 python 客户端发送到 Django web 服务器？

Question

I'd like python3 program to send JSON data to Django web server and print them on web page. This is what I have in Views.py:

def receive_json(request):
    if request.method == 'POST':
        received_data = json.loads(request.body.decode("utf-8"))
        return StreamingHttpResponse('it was post request: ' + str(received_data))
    return StreamingHttpResponse('it was get request')

And the python code:

import requests
import json
url = "http://127.0.0.1:8000/"
data = {"data": [{'key1':'val1'}, {'key2':'val2'}]}
headers = {'content-type':'application/json'}
r = requests.post(url, data=json.dumps(data), headers=headers)
r.text

However, it shows this message:

Forbidden (CSRF cookie not set.): /
[28/May/2021 16:51:31] "POST / HTTP/1.1" 403 2864

Answer 1

import requests
import json
url = "http://127.0.0.1:8000/"
data = {"data": [{'key1':'val1'}, {'key2':'val2'}]}
headers = {'content-type':'application/json','Cookie':'csrftoken=axXsa39e5hq8gqlTjJFHAbUWtg2FQgnSd3cxxkx9khatqgersthtSryDxtF0cVCk'}
r = requests.post(url, data=json.dumps(data), headers=headers)
r.text

i think these may works by adding Cookie but it would be better if u use @csrf_exempt decorater in receive_json function by these way

from django.views.decorators.csrf import csrf_exempt
@csrf_exempt
def receive_json(request):
    if request.method == 'POST':
        received_data = json.loads(request.body.decode("utf-8"))
        return StreamingHttpResponse('it was post request: ' + str(received_data))
    return StreamingHttpResponse('it was get request')

Answer 2

Essentially you need first to perform a GET request to get a csrftoken, than post that together with the data. There are a few ways to do this. Here is one (untested however):

import requests
import json
url = "http://127.0.0.1:8000/"


s = requests.Session()
s.get(url)
headers = {
  'content-type':'application/json',
  'X-CSRFToken': s.cookies["csrftoken"],
}
data = {"data": [{'key1':'val1'}, {'key2':'val2'}]}
r = s.post(url, data=json.dumps(data), headers=headers)
r.text

You can find more information in Django's CSRF documentation .