Skip to main content

A python helper library for AWS API Gateway Custom Authorizers

Project description

A python helper library for AWS API Gateway Custom Authorizers.


pip install aws-lambda-pyauthlib


pipenv install aws-lambda-pyauthlib


from pyauthlib import UserInfo, AuthPolicy, HttpMethod, parse_event, raise_401
from my_auth_client import get_client

def lambda_handler(event, _context):
    '''Exchanges access token for user_info and returns the policy.
        Unauthorized users are denied all access.
        Users are allowed read access to all resources.
        Admins are allowed full access to all resources.
    event = parse_event(event)

    identity = get_client().get_identity(event.access_token)
    user_info = UserInfo(identity['user_id'], identity['grants'])
    policy = AuthPolicy(user_info)

    if not user_info:
    elif 'ROLE_ADMIN' in user_info.authorities:
        policy.allow(event.arn(method=HttpMethod.ALL, resource='*'))
        policy.allow(event.arn(method=HttpMethod.GET, resource='*'))


More Information

You can also return an arbitrary authorizer context, by passing kwargs into the UserInfo. A list of authorities is always required, but nothing is stopping you from using an empty list.

Go check out the examples!

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

aws-lambda-pyauthlib-0.2.2.tar.gz (4.6 kB view hashes)

Uploaded Source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page