boto3_s3_presigned_url_for_object_download.py

1import logging
2import boto3
3from botocore.exceptions import ClientError
4
5
6def create_presigned_url(bucket_name, object_name, expiration=3600):
7    """Generate a presigned URL to share an S3 object
8
9    :param bucket_name: string
10    :param object_name: string
11    :param expiration: Time in seconds for the presigned URL to remain valid
12    :return: Presigned URL as string. If error, returns None.
13    """
14
15    # Generate a presigned URL for the S3 object
16    s3_client = boto3.client('s3')
17    try:
18        response = s3_client.generate_presigned_url('get_object',
19                                                    Params={'Bucket': bucket_name,
20                                                            'Key': object_name},
21                                                    ExpiresIn=expiration)
22    except ClientError as e:
23        logging.error(e)
24        return None
25
26    # The response contains the presigned URL
27    return response