Amazon S3 boto - how to create a folder?

问题:

How can I create a folder under a bucket using boto library for Amazon s3?

I followed the manual, and created the keys with permission, metadata etc, but no where in the boto's documentation it describes how to create folders under a bucket, or create a folder under folders in bucket.

回答1:

There is no concept of folders or directories in S3. You can create file names like "abc/xys/uvw/123.jpg", which many S3 access tools like S3Fox show like a directory structure, but it's actually just a single file in a bucket.

回答2:

Assume you wanna create folder abc/123/ in your bucket, it's a piece of cake with Boto

k = bucket.new_key('abc/123/') k.set_contents_from_string('') 

Or use the console

回答3:

With AWS SDK .Net works perfectly, just add "/" at the end of the folder name string:

var folderKey =  folderName + "/"; //end the folder name with "/" AmazonS3 client = Amazon.AWSClientFactory.CreateAmazonS3Client(AWSAccessKey, AWSSecretKey); var request = new PutObjectRequest(); request.WithBucketName(AWSBucket); request.WithKey(folderKey); request.WithContentBody(string.Empty); S3Response response = client.PutObject(request); 

Then refresh your AWS console, and you will see the folder

回答4:

Append "_$folder$" to your folder name and call put.

    String extension = "_$folder$";     s3.putObject("MyBucket", "MyFolder"+ extension, new ByteArrayInputStream(new byte[0]), null); 

see: http://www.snowgiraffe.com/tech/147/creating-folders-programmatically-with-amazon-s3s-api-putting-babies-in-buckets/

回答5:

S3 doesn't have a folder structure, But there is something called as keys.

We can create /2013/11/xyz.xls and will be shown as folder's in the console. But the storage part of S3 will take that as the file name.

Even when retrieving we observe that we can see files in particular folder (or keys) by using the ListObjects method and using the Prefix parameter.

回答6:

It's really easy to create folders. Actually it's just creating keys.

You can see my below code i was creating a folder with utc_time as name.

Do remember ends the key with '/' like below, this indicates it's a key:

Key='folder1/' + utc_time + '/'

client = boto3.client('s3') utc_timestamp = time.time()   def lambda_handler(event, context):      UTC_FORMAT = '%Y%m%d'     utc_time = datetime.datetime.utcfromtimestamp(utc_timestamp)     utc_time = utc_time.strftime(UTC_FORMAT)     print 'start to create folder for => ' + utc_time      putResponse = client.put_object(Bucket='mybucketName',                                     Key='folder1/' + utc_time + '/')      print putResponse 

回答7:

Apparently you can now create folders in S3. I'm not sure since when, but I have a bucket in "Standard" zone and can choose Create Folder from Action dropdown.

回答8:

Although you can create a folder by appending "/" to your folder_name. Under the hood, S3 maintains flat structure unlike your regular NFS.

 var params = {             Bucket : bucketName,             Key : folderName + "/"         }; s3.putObject(params, function (err, data) {}); 

回答9:

Use this:

import boto3 s3 = boto3.client('s3') bucket_name = "YOUR-BUCKET-NAME" directory_name = "DIRECTORY/THAT/YOU/WANT/TO/CREATE" #it's name of your folders s3.put_object(Bucket=bucket_name, Key=(directory_name+'/')) 

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