We are trying to get the files on S3 bucket to pega via REST call and attach them to a case.

In postman we were able to use AWS Signature with "AccessKey" and "SecretKey" and get the content of the files, so we are trying to implement the same in Pega

but we are unable to do AWS signature using JAVA code provided on GitHub.

Used below code

1.https://www.javaquery.com/2016/01/aws-version-4-signing-process-complete.html

2.https://github.com/aws/aws-sdk-java/blob/master/aws-java-sdk-core/src/main/java/com/amazonaws/auth/AWS4Signer.java

Our goal is to get the files from S3 bucket and attach those files to a case in Pega.

Please help us on this.