Copying folders inside Amazon S3 bucket

0 votes

I want to copy one folder, with all existing files inside it, to another folder inside AmazonS3's same Bucket.

I can copy one object but what I want to do is copy the folder, with all files, into another Folder.

Nov 29, 2018 in AWS by datageek
• 3,090 points
8,532 views

2 answers to this question.

0 votes

Hey, this works for me.  

  public bool CopyFolderInsideS3Bucket(string source, string destination)
        {
            var strippedSource = source;
            var strippedDestination = destination;

            // process source
            if (strippedSource.StartsWith("/"))
                strippedSource = strippedSource.Substring(1);
            if (strippedSource.EndsWith("/"))
                strippedSource = source.Substring(0, strippedSource.Length - 1);

            var sourceParts = strippedSource.Split('/');
            var sourceBucket = sourceParts[0];

            var sourcePrefix = new StringBuilder();
            for (var i = 1; i < sourceParts.Length; i++)
            {
                sourcePrefix.Append(sourceParts[i]);
                sourcePrefix.Append("/");
            }

            // process destination
            if (strippedDestination.StartsWith("/"))
                strippedDestination = destination.Substring(1);
            if (strippedDestination.EndsWith("/"))
                strippedDestination = destination.Substring(0, strippedDestination.Length - 1);

            var destinationParts = strippedDestination.Split('/');
            var destinationBucket = destinationParts[0];

            var destinationPrefix = new StringBuilder();
            for (var i = 1; i < destinationParts.Length; i++)
            {
                destinationPrefix.Append(destinationParts[i]);
                destinationPrefix.Append("/");
            }

            var listObjectsResult = client.ListObjects(new ListObjectsRequest(){ 
                BucketName = sourceBucket,
                Prefix = sourcePrefix.ToString(),
                Delimiter = "/"});

            // copy each file
            foreach (var file in listObjectsResult.S3Objects)
            {
                var request = new CopyObjectRequest();
                request.SourceBucket = Settings.BucketName;
                request.SourceKey = file.Key;
                request.DestinationBucket = destinationBucket;
                request.DestinationKey = destinationPrefix + file.Key.Substring(sourcePrefix.Length);
                request.CannedACL = S3CannedACL.PublicRead;
                var response = (CopyObjectResponse)client.CopyObject(request);
            }

            // copy subfolders
            foreach (var folder in listObjectsResult.CommonPrefixes)
            {
                var actualFolder = folder.Substring(sourcePrefix.Length);
                actualFolder = actualFolder.Substring(0, actualFolder.Length - 1);
                CopyFolderInsideS3Bucket(strippedSource + "/" + actualFolder, strippedDestination + "/" + actualFolder);
            }

            return true;
        }

Hope this helped!

answered Nov 29, 2018 by anonymous
Yes this also worked fine. Thank you!
0 votes

Here is the example to copy folder inside AmazonS3 Bucket which works for me

public bool CopyFolderInsideS3Bucket(string source, string destination)
        {
            var strippedSource = source;
            var strippedDestination = destination;

            // process source
            if (strippedSource.StartsWith("/"))
                strippedSource = strippedSource.Substring(1);
            if (strippedSource.EndsWith("/"))
                strippedSource = source.Substring(0, strippedSource.Length - 1);

            var sourceParts = strippedSource.Split('/');
            var sourceBucket = sourceParts[0];

            var sourcePrefix = new StringBuilder();
            for (var i = 1; i < sourceParts.Length; i++)
            {
                sourcePrefix.Append(sourceParts[i]);
                sourcePrefix.Append("/");
            }

            // process destination
            if (strippedDestination.StartsWith("/"))
                strippedDestination = destination.Substring(1);
            if (strippedDestination.EndsWith("/"))
                strippedDestination = destination.Substring(0, strippedDestination.Length - 1);

            var destinationParts = strippedDestination.Split('/');
            var destinationBucket = destinationParts[0];

            var destinationPrefix = new StringBuilder();
            for (var i = 1; i < destinationParts.Length; i++)
            {
                destinationPrefix.Append(destinationParts[i]);
                destinationPrefix.Append("/");
            }
Hope this helped!
answered Nov 29, 2018 by Archana
• 5,640 points

Related Questions In AWS

0 votes
1 answer

How do I create folder under an Amazon S3 bucket through PHP API?

Of Course, it is possible to create ...READ MORE

answered Apr 24, 2018 in AWS by anonymous
11,274 views
0 votes
1 answer

How to copy .csv file from Amazon S3 bucket?

Boto3 is the library to use for ...READ MORE

answered Jul 6, 2018 in AWS by Priyaj
• 58,100 points
2,051 views
0 votes
1 answer

Amazon s3 Folders Problem

Amazon S3 is a flat file system. ...READ MORE

answered Jul 13, 2018 in AWS by Cloud gunner
• 4,670 points
497 views
+1 vote
2 answers

AWS CloudWatch Logs in Docker

The awslogs works without using ECS. you need to configure ...READ MORE

answered Sep 7, 2018 in AWS by bug_seeker
• 15,520 points
1,959 views
+2 votes
1 answer

Deploy Docker Containers from Docker Cloud

To solve this problem, I followed advice ...READ MORE

answered Sep 3, 2018 in AWS by Priyaj
• 58,100 points
2,650 views
+3 votes
6 answers

How to move files from amazon ec2 to s3 bucket using command line

Hey, 3 ways you can do this: To ...READ MORE

answered Oct 9, 2018 in AWS by Omkar
• 69,230 points
19,843 views
+1 vote
4 answers

How do I cache my images which are stored in Amazon S3?

when caching ec2 instance these can be ...READ MORE

answered Oct 23, 2018 in AWS by Nabarupa
8,930 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP