aiohttp OAuth Clients

OAuth 1.0 Client

Taking Twitter as an example on how to use OAuth1Client.

from aiohttp_oauth_client import OAuth1Client

1. Fetch Temporary Credential

For OAuth 1.0, the first step is requesting a temporary credential (aka request token).

client_id = '__YOUR_TWITTER_CLIENT_ID__'
client_secret = '__YOUR_TWITTER_CLIENT_SECRET__'

async def fetch_request_token():
    url = 'https://api.twitter.com/oauth/request_token'

    async with OAuth1Client(client_id, client_secret) as session:
        request_token = await session.fetch_request_token(url)
        return request_token

This fetch_request_token method will return the temporary credential like:

{'oauth_token': 'Ih....Jw', 'oauth_token_secret': 'gr...GE', 'oauth_callback_confirmed': 'true'}

We can test this function with:

# twitter.py

import asyncio
from aiohttp_oauth_client import OAuth1Client

client_id = '__YOUR_TWITTER_CLIENT_ID__'
client_secret = '__YOUR_TWITTER_CLIENT_SECRET__'

async def fetch_request_token():
    url = 'https://api.twitter.com/oauth/request_token'

    async with OAuth1Client(client_id, client_secret) as session:
        request_token = await session.fetch_request_token(url)
        return request_token


async def main():
    request_token = await fetch_request_token()
    print(request_token)

if __name__ == '__main__':
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main())

2. Redirect to Authorization Endpoint

The second step is to generate the authorization URL:

def create_authorization_url(request_token):
    authenticate_url = 'https://api.twitter.com/oauth/authenticate'
    client = OAuth1Client(client_id, client_secret)
    url = client.create_authorization_url(authenticate_url, request_token['oauth_token'])
    return url

This step is synchronized, no need for async and await. Passing the request_token we got from the first step, we would get a url like:

https://api.twitter.com/oauth/authenticate?oauth_token=Ih....Jw

Then visit this URL with your browser, and approve the request. Twitter will redirect back to your default redirect_uri you registered in Twitter.

If you want to redirect to your specified URL, rewrite the code like:

def create_authorization_url(request_token):
    authenticate_url = 'https://api.twitter.com/oauth/authenticate'
    client = OAuth1Client(client_id, client_secret, redirect_uri='https://your-defined-url')
    url = client.create_authorization_url(authenticate_url, request_token['oauth_token'])
    return url

3. Fetch Access Token

The last step is to fetch the access token. In previous step, twitter will redirect back to a URL, for instance, something like:

https://your-domain.org/auth?oauth_token=Ih...Jw&oauth_verifier=fcg..1Dq

We will use the oauth_verifier in this URL to fetch access token. Here is our code:

async def fetch_access_token(request_token, oauth_verifier):
    url = 'https://api.twitter.com/oauth/access_token'
    async with OAuth1Client(client_id, client_secret) as session:
        session.token = request_token
        token = await session.fetch_access_token(url, oauth_verifier)
        return token


# if you specified redirect_uri in previous step, create the session with
# OAuth1Client(client_id, client_secret, redirect_uri='....')

We can test this function with:

# twitter.py

import asyncio
from aiohttp_oauth_client import OAuth1Client

client_id = '__YOUR_TWITTER_CLIENT_ID__'
client_secret = '__YOUR_TWITTER_CLIENT_SECRET__'

async def fetch_access_token(request_token, oauth_verifier):
    url = 'https://api.twitter.com/oauth/access_token'
    async with OAuth1Client(client_id, client_secret) as session:
        session.token = request_token
        token = await session.fetch_access_token(url, oauth_verifier)
        return token

async def main():
    # from step 1
    request_token = {
        'oauth_token': 'Ih....Jw',
        'oauth_token_secret': 'gr...GE',
        'oauth_callback_confirmed': 'true'
    }
    # from step 2
    verifier = 'fcg..1Dq'
    token = await fetch_access_token(request_token, verifier)
    print(request_token)

if __name__ == '__main__':
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main())

OAuth 2.0 Client

from aiohttp_oauth_client import OAuth2Client

OAuth 2.0 Assertion

from aiohttp_oauth_client import AssertionClient

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