Customer wants to make REST calls to AWS REST APIs. The APIs required signed requests. As per Community articles, Customer can utilize the "AWSRESTRequestSigningUtil" script includes to sign the requests but this script includes is not on the instance.
This script includes is part of paid plugin Cloud Management Application V1 which has been deprecated for newer releases. The only way to have this script includes is to have CMPv1 activated when instance was in older releases.
OOB that we have various applications interact with AWS using the following methods.
a. Making direct REST Calls which includes calls to obtain tokens, sign requests, and the actual call. The API can be found here:
b. Call AWS S3 Client Java API: