httpx-auth-awssigv4

This package provides utilities to add AWS Signature V4 authentication infrormation to calls made by python httpx library.

• Documentation: https://mmuppidi.github.io/httpx-auth-awssigv4
• GitHub: https://github.com/mmuppidi/httpx-auth-awssigv4
• PyPI: https://pypi.org/project/httpx-auth-awssigv4/
• MIT License

Installation

pip install httpx-auth-awssigv4

Usage

Basic Usage

This library has primarily been developed to help add authentication support to httpx library while making calls to REST API deployed using AWS API Gateway service. Will be extended in future to help with calling AWS services.

import httpx
from httpx_auth_awssigv4 import Sigv4Auth

# creating a callable for httpx library
auth = Sigv4Auth(
    access_key="AWS_ACCESS_KEY_ID",
    secret_key="AWS_SECRET_ACCESS_KEY",
    service="execute-api",
    region="us-east-1"
)

# Calling an API endpoint deployed using AWS API Gateway which has
# AWS_IAM set as authorization type

response = httpx.get(
    url="https://<API ID>.execute-api.<Region>.amazonaws.com/prod/detials",
    params={"username": "tstark"},
    auth=auth
)

# Making a post call

response = httpx.get(
    url="https://<API ID>.execute-api.<Region>.amazonaws.com/prod/details",
    params={"username": "tstark"},
    json={"mission": "avengers"},
    auth=auth
)

With STS credentials

Sigv4Auth can be used with temporary credentials generated with tools like aws-sso-util.

import boto3
from httpx_auth_awssigv4 import Sigv4Auth

# fetch temporary credentials from AWS STS service
credentials = boto3.Session(profile_name="<profile>").get_credentials()

# creating a callable for httpx library
auth = Sigv4Auth(
    access_key=credentials.access_key,
    secret_key=credentials.secret_key,
    token=credentials.token
    service="execute-api",
    region="us-east-1"
)

Sigv4Auth can also be used with temporary credentials from AWS STS.

import boto3
from httpx_auth_awssigv4 import Sigv4Auth

# role with `execute-api` permissions
ROLE_ARN="arn:aws:iam::<ACCOUNT ID>:role/<ROLE NAME"

# fetch temporary credentials from AWS STS service
credentials = boto3.client('sts').assume_role(
    RoleArn=ROLE_ARN,
    RoleSessionName="httpxcall"
)["Credentials"]

# creating a callable for httpx library
auth = Sigv4Auth(
    access_key=credentials["AccessKeyId"],
    secret_key=credentials["SecretAccessKey"],
    token=credentials["SessionToken"]
    service="execute-api",
    region="us-east-1"
)

ToDo

• Add examples on usage along with API backend deployment instructions.
• Test the library with AWS services and add integration tests.

Credits

• This package was created with Cookiecutter and the waynerv/cookiecutter-pypackage project template.