S3: Create Presigned Download URL

s3-presign-url.py

#!/usr/bin/env python

# Usage:
#     s3-presign-url path/to/object
#
# 1) Install boto3:
#     pip install boto3
# 2) Configure aws:
#     aws configure
# 3) Change the bucket name in this script (below)
#

import boto3
import requests
import sys

# argument
key = sys.argv[1]

# Get the service client.
s3 = boto3.client('s3')

# Generate the URL to get 'key-name' from 'bucket-name'
url = s3.generate_presigned_url(
    ClientMethod='get_object',
    Params={
        'Bucket': 'mslb-db-backups',
        'Key': key
    }
)

# Use the URL to perform the GET operation. You can use any method you like
# to send the GET, but we will use requests here to keep things simple.
response = requests.get(url)
print response.url