Python Request | Construct Post Request Body

I am trying to construct below POST request using python requests. Request header Host: www.example.com User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:46.0) Gecko/20100101 Fi

Solution 1:

Your error is as per the comments to this answer from using an ancient version of requestes 1.1.0 from 2013, so pip install -U requests will fix that.

To do the post you don't need to hardcode anything, you create a session and get whatever you need i.e the csrf token and requests will take care of the rest:

import requests   


headers = {'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:46.0) Gecko/20100101 Firefox/46.0',
           'X-Requested-With': 'XMLHttpRequest', "referer": "https://www.hackerearth.com/challenges/"}

with requests.Session() as s:
    s.get("https://www.hackerearth.com")
    headers["X-CSRFToken"] = s.cookies["csrftoken"]
    r = s.post("https://www.hackerearth.com/AJAX/filter-challenges/?modern=true", headers=headers,
               files={'submit': (None, 'True')})
    print(r.json())

The three necessary things were, X-Requested-With as it has to be an ajax request, the referer and the csrf token.

To access the raw request data, you can access the attributes on r.request:

print(r.request.body)
print(r.request.headers)