How to upload a file to S3 and make it public using boto3?

python amazon-s3 boto boto3
Adi picture Adi · Jan 28, 2017 · Viewed 35.8k times · Source

I am able to upload an image file using:

s3 = session.resource('s3')
bucket = s3.Bucket(S3_BUCKET)
bucket.upload_file(file, key)

However, I want to make the file public too. I tried looking up for some functions to set ACL for the file but seems like boto3 have changes their API and removed some functions. Is there a way to do it in the latest release of boto3?

Answer

Bill Baker picture Bill Baker · Nov 21, 2017

To upload and set permission to publicly-readable in one step, you can use:

bucket.upload_file(file, key, ExtraArgs={'ACL':'public-read'})

See https://boto3.amazonaws.com/v1/documentation/api/latest/guide/s3-uploading-files.html#the-extraargs-parameter

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