This project offers a reference for calling Amazon S3 REST API without using the AWS CLI or SDK. It supports Signature Version 4 for signing AWS requests to S3 API. Sometimes, a client environment is restricted and is unallowed to install any external packages or modules. In such a case, installing AWS CLI or an AWS SDK such as Boto3 for Python is not feasible. Assuming Python runtime is available (which is the case in most Unix-like OS environments), the s3.py program from this project can be modified and executed to invoke various S3 APIs.

The following S3 APIs are called from the program:

• PutObject
• GetObject
• DeleteObject
• ListObjects
• ListBuckets
• CreateBucket
• DeleteBucket

More APIs can be added easily to s3.py by referencing the REST API syntax documented here.

Note: s3.py has been tested with Python 2.7 and Python 3.7. Please report any issues running the code.

1. Configure required environment variables

export AWS_ACCESS_KEY_ID=[your access key id]
export AWS_SECRET_ACCESS_KEY=[your access key secret]
export AWS_S3_BUCKET=[your bucket name]

2. Clone this repo or download s3.py file, and copy to your Linux machine
3. Run the program as python s3.py or python2.7 s3.py

• MIT license
• Copyright 2020 © Sachin Hamirwasia