TransferUtility: I can upload/download to the root, but I can't do the same to a folder. Ver 3.7.305.20

[andreig-omnicell]

My code

        var bucketName = "da.test.bucket";
        var profileName = "deafult";
        var accessKey = "***";
        var secretKey = "***";

        regionEndpoint = RegionEndpoint.USWest2;

        Amazon.Util.ProfileManager.RegisterProfile(profileName, accessKey, secretKey);
        var credentials = new StoredProfileAWSCredentials(profileName);            
        var utility = new TransferUtility(new AmazonS3Client(credentials, regionEndpoint));
        var destFileName = "client-test-5.txt";    
        var bfolder = bucketName + "/mydir";
       utility.Upload(sourceFile, bfolder, destFileName);            

Error:
Amazon.S3.AmazonS3Exception: The request signature we calculated does not match the signature you provided. Check your key and signing method. ---> Amazon.Runtime.Internal.HttpErrorResponseException: The remote server returned an error: (403) Forbidden. ---> System.Net.WebException: The remote server returned an error: (403) Forbidden.

When I use
var bfolder = bucketName;
the upload works.

[dscpinheiro]

Newer versions of the SDK (after version 3.7.100) do not allow the bucket name to contain a slash (i.e. part of the object key). See this comment for more context: #2622 (comment)

As you mentioned, the solution to this problem is using instead:

var destFileName = "mydir/client-test-5.txt"; 
utility.Upload(sourceFile, bucketName, destFileName);

This will upload the file to s3://bucketName/mydir/client-test-5.txt successfully.