python requests headers authorization

Python Requests Headers Authorization

If you want to make an HTTP request to an API that requires authentication, then you need to include an authorization header with your request. In Python, you can use the requests library to make HTTP requests, and you can set the authorization header using the headers parameter.

Using Basic Authentication

The most common type of authentication is Basic Authentication, which involves sending a username and password in the authorization header. Here's an example of how to do this:

import requests

url = ''
username = 'myusername'
password = 'mypassword'

response = requests.get(url, headers={'Authorization': 'Basic ' + b64encode(bytes(username + ':' + password, 'ascii')).decode('ascii')})


In this example, we're sending a GET request to the URL with the username myusername and password mypassword. We're using the b64encode function from the base64 module to encode the username and password as a base64 string, and then we're decoding it back to ASCII before adding it to the Authorization header.

Using OAuth 2.0 Authentication

If you need to use OAuth 2.0 authentication, then you can use the requests-oauthlib library. Here's an example of how to do this:

import requests
from requests_oauthlib import OAuth2Session

client_id = 'your_client_id'
client_secret = 'your_client_secret'
redirect_uri = ''
authorization_base_url = ''
token_url = ''

oauth = OAuth2Session(client_id, redirect_uri=redirect_uri)
authorization_url, state = oauth.authorization_url(authorization_base_url)

print('Please go to %s and authorize access.' % authorization_url)
authorization_response = input('Enter the full callback URL')

token = oauth.fetch_token(token_url, authorization_response=authorization_response, client_secret=client_secret)


In this example, we're using OAuth 2.0 authentication to get an access token from an API that supports this type of authentication. We're using the requests-oauthlib library to handle the OAuth 2.0 flow, and we're passing in our client ID, client secret, redirect URI, authorization URL, and token URL.