Downloading a file from an s3 Bucket to the USERS computer

Question

Goal

Download file from s3 Bucket to users computer.

Context

I am working on a Python/Flask API for a React app. When the user clicks the Downloa

Answer 1

A better way to solve this problem is to create presigned url. This gives you a temporary URL that's valid up to a certain amount of time. It also removes your flask server as a proxy between the AWS s3 bucket which reduces download time for the user.

def get_attachment_url():
   bucket = 'BUCKET_NAME'
   key = 'FILE_KEY'

   client: boto3.s3 = boto3.client(
     's3',
     aws_access_key_id=YOUR_AWS_ACCESS_KEY,
     aws_secret_access_key=YOUR_AWS_SECRET_KEY
   )

   return client.generate_presigned_url('get_object',
                                     Params={'Bucket': bucket, 'Key': key},
                                     ExpiresIn=60) `