How to Programmatically Disable Credentials Check Before Accessing Public AWS S3 Buckets?

Question

My C++ program must access both public and private AWS buckets. The public buckets don’t belong to me so when the program tries to access them and my credentials are visible I get the following type errors:

Aws::S3::S3Errors::INVALID_ACCESS_KEY_ID    

"InvalidAccessKeyId"    

"The AWS Access Key Id you provided does not exist in our records."

If I manually hide my credentials like this

mv ~/.aws/credentials ~/.aws/credentials-hidden

before running the program I can successfully list and get the public objects. But then, the program can't access my private buckets.

I’ve searched S3Client and ClientConfiguration for some option to disable and re-enable credentials checks but haven’t found it.

Please tell me how this is done.

Answer 1

I found a solution. To access public buckets without hiding my ~/.aws/credentials file I can create an S3Client with empty credentials.

Aws::Auth::AWSCredentials empty_credentials { };
Aws::S3::S3Client s3_client { empty_credentials, config };