GetObjectRequest - Access Denied for Virtual Hosted-Style Request

Question

Hello,  
  
I am working in unity and using the latest unity sdk. A couple of days ago i created s3 buckets in EU region while having a few buckets with AP region.  
The app worked fine with the AP region bucket and always receives "access denied" error when access objects from EU bucket. Do note that this is not a permissions issue for the buckets.   
When looking at the GET request I noticed that the SDK internally generates a path-style request for AP region bucket and hosted-style request. That is the only difference and it is something done by the SDK. I did read that path-style requests will be deprecated by Sept 30 2020. Is this what is affecting my application?  
Here are the Get requests  
"properties":{"AsyncCall":"True","CanonicalRequest":"GET
/bucketname/user/profile/userProfile.xml

host:s3.ap-southeast-2.amazonaws.com  
{"AsyncCall":"True","CanonicalRequest":"GET
/user/profile/userProfile.xml

host:bucketname.s3.eu-west-2.amazonaws.com  
  
Please advise how to get the GET/PUT requests to work for EU buckets.  
  
Regards

Answer

I mananged to fix the issue by assigning permissions to the cognito identity pool that was accessing the EU S3 bucket.   
  
To do this  
Login to your AWS console  
Go To IAM  
On left tab, click 'Roles'  
Now click on the Role that is related to the cognito identity pool  
Edit the Json policy.   
Basically your identity pool which is assigned to your cognito user pool should have access to S3.  
  
Following assigns access to all but you may want to restrict the access and the   
eg. policy json:  
  
{  
    "Version": "2012-10-17",  
    "Statement": \[  
        {  
            "Effect": "Allow",  
            "Action": \[  
                "s3:*",  
                "other stuff:*"  
            ],  
            "Resource": \[  
                "*"  
            ]  
        }  
    ]  
}

GetObjectRequest - Access Denied for Virtual Hosted-Style Request

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