Какими поставщиками OAuth-сервиса вы реализовывали интеграцию?

Most often, I have implemented integration with OAuth services such as Google, Facebook, and GitHub. These services provide standard OAuth 2.0 protocols for user authorization and authentication.

An example of integrating with Google OAuth 2.0 in Python using the requests and oauthlib libraries might look like this:

from requests_oauthlib import OAuth2Session

client_id = 'your_client_id'
client_secret = 'your_client_secret'
redirect_uri = 'https://yourapp.com/callback'
authorization_base_url = 'https://accounts.google.com/o/oauth2/auth'
token_url = 'https://accounts.google.com/o/oauth2/token'

# Create OAuth session
google = OAuth2Session(client_id, redirect_uri=redirect_uri, scope=['profile', 'email'])

# Get authorization URL
authorization_url, state = google.authorization_url(authorization_base_url, access_type="offline", prompt="select_account")

print('Navigate to the following link for authorization:', authorization_url)

# After receiving the authorization code from the user
# token = google.fetch_token(token_url, client_secret=client_secret, authorization_response=response_url)

I have also worked with Yandex and VKontakte OAuth providers, which have their own specifics, but the basic OAuth 2.0 principle remains the same.