How to configure authorization mechanism inline with boto3

Question

I am using boto3 in aws lambda to fecth object in S3 located in Frankfurt Region.

v4 is necessary. otherwise following error will return

\"errorMessage\"         


        

Answer 1

Instead of using the default session, try using custom session and Config from boto3.session

import boto3
import boto3.session
session = boto3.session.Session(region_name='eu-central-1')
s3client = session.client('s3', config= boto3.session.Config(signature_version='s3v4'))
s3client.get_object(Bucket='', Key='S3-Object-Key')