import boto3
from botocore.exceptions import ClientError
def upload_file(file_name, bucket, object_name=None):
"""Upload a file to an S3 bucket
:param file_name: File to upload
:param bucket: Bucket to upload to
:param object_name: S3 object name. If not specified then file_name is used
:return: True if file was uploaded, else False
"""
# If S3 object_name was not specified, use file_name
if object_name is None:
object_name = file_name
# Upload the file
s3_client = boto3.client('s3')
try:
response = s3_client.upload_file(file_name, bucket, object_name)
except ClientError as e:
logging.error(e)
return False
return True
import logging
import boto3
from botocore.exceptions import ClientError
def create_presigned_url(bucket_name, object_name, expiration=3600):
"""Generate a presigned URL to share an S3 object
:param bucket_name: string
:param object_name: string
:param expiration: Time in seconds for the presigned URL to remain valid
:return: Presigned URL as string. If error, returns None.
"""
# Generate a presigned URL for the S3 object
s3_client = boto3.client('s3')
try:
response = s3_client.generate_presigned_url('get_object',
Params={'Bucket': bucket_name,
'Key': object_name},
ExpiresIn=expiration)
except ClientError as e:
logging.error(e)
return None
# The response contains the presigned URL
return response