// S3 Endpoint
// https://<my_bucket>.s3.amazonaws.com/<file_destination>
// Example:
//https://test-bucket.s3.amazonaws.com/37fc355a-85e5-42d8-b359-03acf238ad0b/raw_files/37fc355a-85e5-42d8-b359-03acf238ad0b
// Generate SHA256 sum:
shasum -a 256 my_file.txt | cut -f1 -d\ | xxd -r -p | base64
// Postman Steps:
1. Set up AWS SIgnature Auth type in Postman
2. Use additional keys in Heders:
* x-amz-checksum-sha256: your base64 encoded checksum sha256, for instance: 9WjDllRkasTzHyHRbXREEETNNgP0BP/I/16zlE91EH4=
* x-amz-server-side-encryption: AES256
3. Use binary in Body and select file from hard drive
4. Send request