OAuth for Requests

Requests is a very popular HTTP library for Python. Authlib enables OAuth 1.0 and OAuth 2.0 for Requests with its OAuth1Session, OAuth2Session and AssertionSession.

Requests OAuth 1.0

There are three steps in OAuth 1 Session to obtain an access token:

  1. fetch a temporary credential
  2. visit the authorization page
  3. exchange access token with the temporary credential

It shares a common API design with OAuth for HTTPX.


The requests integration follows our common guide of OAuth 1 Session. Follow the documentation in OAuth 1 Session instead.


It is also possible to use OAuth1Auth directly with in requests. After we obtained access token from an OAuth 1.0 provider, we can construct an auth instance for requests:

auth = OAuth1Auth(
requests.get(url, auth=auth)

Requests OAuth 2.0

In OAuth 2 Session, there are many grant types, including:

  1. Authorization Code Flow
  2. Implicit Flow
  3. Password Flow
  4. Client Credentials Flow

And also, Authlib supports non Standard OAuth 2.0 providers via Compliance Fix.

Follow the common guide of OAuth 2 Session to find out how to use requests integration of OAuth 2.0 flow.

Using client_secret_jwt in Requests

There are three default client authentication methods defined for OAuth2Session. But what if you want to use client_secret_jwt instead? client_secret_jwt is defined in RFC7523, use it for Requests:

from authlib.integrations.requests_client import OAuth2Session
from authlib.oauth2.rfc7523 import ClientSecretJWT

token_endpoint = 'https://example.com/oauth/token'
session = OAuth2Session(
    'your-client-id', 'your-client-secret',

The ClientSecretJWT is provided by RFC7523: JWT Profile for OAuth 2.0 Client Authentication and Authorization Grants.

Using private_key_jwt in Requests

What if you want to use private_key_jwt client authentication method, here is the way with PrivateKeyJWT for Requests:

from authlib.integrations.requests_client import OAuth2Session
from authlib.oauth2.rfc7523 import PrivateKeyJWT

with open('your-private-key.pem', 'rb') as f:
    private_key = f.read()

token_endpoint = 'https://example.com/oauth/token'
session = OAuth2Session(
    'your-client-id', private_key,

The PrivateKeyJWT is provided by RFC7523: JWT Profile for OAuth 2.0 Client Authentication and Authorization Grants.


Already obtained access token? We can use OAuth2Auth directly in requests. But this OAuth2Auth can not refresh token automatically for you. Here is how to use it in requests:

token = {'token_type': 'bearer', 'access_token': '....', ...}
auth = OAuth2Auth(token)
requests.get(url, auth=auth)

Requests OpenID Connect

OpenID Connect is built on OAuth 2.0. It is pretty simple to communicate with an OpenID Connect provider via Authlib. With Authlib built-in OAuth 2.0 system and JsonWebToken (JWT), parsing OpenID Connect id_token could be very easy.

Understand how it works with OAuth 2 OpenID Connect.

Requests Service Account

The Assertion Framework of OAuth 2.0 Authorization Grants is also known as service account. With the implementation of AssertionSession, we can easily integrate with a “assertion” service.

Checking out an example of Google Service Account with AssertionSession.

Close Session Hint

Developers SHOULD close a Requests Session when the jobs are done. You can call .close() manually, or use a with context to automatically close the session:

session = OAuth2Session(client_id, client_secret)

with OAuth2Session(client_id, client_secret) as session:

Self-Signed Certificate

Self-signed certificate mutual-TLS method internet standard is defined in RFC8705 Section 2.2 .

For specifics development purposes only, you may need to disable SSL verification.

You can force all requests to disable SSL verification by setting your environment variable CURL_CA_BUNDLE="".

This solutions works because Python requests (and most of the packages) overwrites the default value for ssl verifications from environment variables CURL_CA_BUNDLE and REQUESTS_CA_BUNDLE.

This hack will only work with CURL_CA_BUNDLE, as you can see in requests/sessions.py

verify = (os.environ.get('REQUESTS_CA_BUNDLE')
or os.environ.get('CURL_CA_BUNDLE'))

Please remember to set the env variable only in you development environment.