[python] How to use cookies in Python Requests

Summary (@Freek Wiekmeijer, @gtalarico) other's answer:

Logic of Login

  • Many resource(pages, api) need authentication, then can access, otherwise 405 Not Allowed
  • Common authentication=grant access method are:
    • cookie
    • auth header
      • Basic xxx
      • Authorization xxx

How use cookie in requests to auth

  1. first get/generate cookie
  2. send cookie for following request
  • manual set cookie in headers
  • auto process cookie by requests's
    • session to auto manage cookies
    • response.cookies to manually set cookies

use requests's session auto manage cookies

curSession = requests.Session() 
# all cookies received will be stored in the session object

payload={'username': "yourName",'password': "yourPassword"}
curSession.post(firstUrl, data=payload)
# internally return your expected cookies, can use for following auth

# internally use previously generated cookies, can access the resources
curSession.get(secondUrl)

curSession.get(thirdUrl)

manually control requests's response.cookies

payload={'username': "yourName",'password': "yourPassword"}
resp1 = requests.post(firstUrl, data=payload)

# manually pass previously returned cookies into following request
resp2 = requests.get(secondUrl, cookies= resp1.cookies)

resp3 = requests.get(thirdUrl, cookies= resp2.cookies)

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