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Authentication using Python requests

  • Last Updated : 05 Mar, 2020

Authentication refers to giving a user permissions to access a particular resource. Since, everyone can’t be allowed to access data from every URL, one would require authentication primarily. To achieve this authentication, typically one provides authentication data through Authorization header or a custom header defined by server.

Example –

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# import requests module
import requests
from requests.auth import HTTPBasicAuth
  
# Making a get request
response = requests.get('https://api.github.com / user, ',
            auth = HTTPBasicAuth('user', 'pass'))
  
# print request object
print(response)


Replace “user” and “pass” with your username and password. It will authenticate the request and return a response 200 or else it will return error 403.
authenticate-python-requests
If you an invalid username or password, it will return an error as –
autentication-python-requests



Types of Authentication

Digest Authentication
Another very popular form of HTTP Authentication is Digest Authentication, and Requests supports this out of the box as well:

>>> from requests.auth import HTTPDigestAuth
>>> url = 'https://httpbin.org/digest-auth/auth/user/pass'
>>> requests.get(url, auth=HTTPDigestAuth('user', 'pass'))

OAuth 1 Authentication
A common form of authentication for several web APIs is OAuth. The requests-oauthlib library allows Requests users to easily make OAuth 1 authenticated requests:

>>> import requests
>>> from requests_oauthlib import OAuth1

>>> url = 'https://api.twitter.com/1.1/account/verify_credentials.json'
>>> auth = OAuth1('YOUR_APP_KEY', 'YOUR_APP_SECRET',
...               'USER_OAUTH_TOKEN', 'USER_OAUTH_TOKEN_SECRET')

>>> requests.get(url, auth=auth)

For more information on how to OAuth flow works, please see the official OAuth website. For examples and documentation on requests-oauthlib, please see the requests_oauthlib repository on GitHub

OAuth 2 and OpenID Connect Authentication
The requests-oauthlib library also handles OAuth 2, the authentication mechanism underpinning OpenID Connect. See the requests-oauthlib OAuth2 documentation for details of the various OAuth 2 credential management flows:

Other Authentication
Requests is designed to allow other forms of authentication to be easily and quickly plugged in. Members of the open-source community frequently write authentication handlers for more complicated or less commonly-used forms of authentication. Some of the best have been brought together under the Requests organization, including:

If you want to use any of these forms of authentication, go straight to their GitHub page and follow the instructions.

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