Bucket Operations

List Buckets

GET / returns a list of buckets created by the user making the request.

GET / only returns buckets created by an authenticated user. You cannot make an anonymous request.

Syntax

GET / HTTP/1.1

Host: storage.cloud.croc.ru
Authorization: AWS {ключ-доступа}:{хэш-сумма-запроса-по-определенным правилам подписанная секретным ключом}

Response Entities

Name Type Description
Buckets Container Container for list of buckets.
Bucket Container Container for bucket information
Name String Bucket name
CreationDate Date UTC time when the bucket was created
ListAllMyBucketsResult Container A container for the results
Owner Container A container for the bucket owner’s ID and DisplayName
ID String The bucket owner’s ID
DisplayName String The bucket owner’s display name

Bucket creation

Creates a new bucket. To create a bucket, you must have a user ID and a valid AWS Access Key ID to authenticate requests. You may not create buckets as an anonymous user.

Bucket name constraints

In general, bucket names should follow domain name constraints.

  • Bucket names must be unique.
  • Bucket names must begin and end with a lowercase letter.
  • Bucket names may contain a dash (-)

Syntax

PUT /{bucket} HTTP/1.1

Host: storage.cloud.croc.ru
x-amz-acl: public-read-write
Authorization: AWS {ключ-доступа}:{хэш-сумма-запроса-по-определенным правилам подписанная секретным ключом}

Parameters

Name Description Valid Values Required
x-amz-acl Canned ACLs private, public-read, public-read-write, authenticated-read No

HTTP Response

If the bucket name is unique, within constraints and unused, the operation will succeed. If a bucket with the same name already exists and the user is the bucket owner, the operation will succeed. If the bucket name is already in use, the operation will fail.

HTTP Status Status Code Description
409 BucketAlreadyExists Bucket already exists under different user’s ownership

Delete bucket

Deletes a bucket. You can reuse bucket names following a successful bucket removal.

Syntax

DELETE /{bucket} HTTP/1.1

Host: storage.cloud.croc.ru
Authorization: AWS {ключ-доступа}:{хэш-сумма-запроса-по-определенным правилам подписанная секретным ключом}

HTTP Response

HTTP Status Status Code Description
204 No Content Bucket removed

GET Bucket

Returns a list of bucket objects.

Syntax

GET /{bucket}?max-keys=25 HTTP/1.1

Host: storage.cloud.croc.ru

Parameters

Name Type Description
prefix String Only returns objects that contain the specified prefix.
delimiter String The delimiter between the prefix and the rest of the object name.
marker String A beginning index for the list of objects returned
max-keys Integer The maximum number of keys to return. Default is 1000.

HTTP Response

HTTP Status Status Code Description
200 OK Bucket retrieved.

Bucket Response Entities

GET /{bucket} returns a container for buckets with the following fields:

Name Type Description
ListBucketResult Entity The container for the list of objects.
Name String The name of the bucket whose contents will be returned.
Prefix String A prefix for the object keys.
Marker String A beginning index for the list of objects returned
MaxKeys Integer The maximum number of keys returned.
Delimiter String If set, objects with the same prefix will appear in the CommonPrefixes list.
IsTruncated Boolean If true, only a subset of the bucket’s contents were returned.
CommonPrefixes Container If multiple objects contain the same prefix, they will appear in this list.

The ListBucketResult contains objects, where each object is within a Contents container.

Name Type Description
Contents Object A container for the object.
Key String The object’s key.
LastModified Date The object’s last-modified date/time.
ETag String An MD-5 hash of the object. (entity tag)
Size Integer The object’s size.
StorageClass String Should always return STANDARD.

Get Bucket Location

Retrieves the bucket’s region. The user needs to be the bucket owner to call this.

Syntax

Add the location sub-resource to bucket resource as shown below

GET /{bucket}?location HTTP/1.1

Host: storage.cloud.croc.ru
Authorization: AWS {ключ-доступа}:{хэш-сумма-запроса-по-определенным правилам подписанная секретным ключом}

Response Entities

Name Type Description
LocationConstraint String The region where bucket resides, empty string for default region

Get Bucket ACL

Retrieves the bucket access control list. The user needs to be the bucket owner or to have been granted READ_ACP permission on the bucket.

Syntax

Add the ACL sub-resource to the bucket request as shown below.

GET /{bucket}?acl HTTP/1.1

Host: storage.cloud.croc.ru
Authorization: AWS {ключ-доступа}:{хэш-сумма-запроса-по-определенным правилам подписанная секретным ключом}

Response Entities

Name Type Description
AccessControlPolicy Container A container for the response.
AccessControlList Container A container for the ACL information.
Owner Container A container for the bucket owner’s ID and DisplayName
ID String The bucket owner’s ID
DisplayName String The bucket owner’s display name
Grant Container A container for the bucket owner’s ID and DisplayName.
Grantee Container A container for the DisplayName and ID of the user receiving a grant of permission.
Permission String The permission given to the Grantee bucket

PUT Bucket ACL

Sets an access control to an existing bucket. The user needs to be the bucket owner or to have been granted WRITE_ACP permission on the bucket.

Syntax

Add the ACL sub-resource to the bucket request as shown below.

PUT /{bucket}?acl HTTP/1.1

Response Entities

Name Type Description
AccessControlPolicy Container A container for the request.
AccessControlList Container A container for the ACL information.
Owner Container A container for the bucket owner’s ID and DisplayName
ID String The bucket owner’s ID
DisplayName String The bucket owner’s display name
Grant Container A container for Grantee and Permission.
Grantee Container A container for the DisplayName and ID of the user receiving a grant of permission.
Permission String The permission given to the Grantee bucket

List Bucket Multipart Uploads

GET /?uploads returns a list of the current in-progress multipart uploads. i.e., the application initiates a multipart upload, but the service hasn’t completed all the uploads yet.

Syntax

GET /{bucket}?uploads HTTP/1.1

Parameters

You may specify parameters for GET /{bucket}?uploads, but none of them are required.

Name Type Description
prefix String Returns in-progress uploads whose keys contains the specified prefix.
delimiter String The delimiter between the prefix and the rest of the object name.
key-marker String The beginning marker for the list of uploads.
max-keys Integer The maximum number of in-progress uploads. The default is 1000.
max-uploads Integer The maximum number of multipart uploads. The range from 1-1000. The default is 1000.
upload-id-marker String Ignored if key-marker isn’t specified. Specifies the ID of first upload to list in lexicographical order at or following the ID.

Response Entities

Name Type Description
ListMultipartUploadsResult Container A container for the results
ListMultipartUploadsResult.Prefix String The prefix specified by the prefix request parameter (if any).
Bucket String The bucket that will receive the bucket contents.
KeyMarker String The key marker specified by the key-marker request parameter (if any).
UploadIdMarker String The marker specified by the upload-id-marker request parameter (if any).
NextKeyMarker String The key marker to use in a subsequent request if IsTruncated is true.
NextUploadIdMarker String The upload ID marker to use in a subsequent request if IsTruncated is true.
MaxUploads Integer The max uploads specified by the max-uploads request parameter.
Delimiter String If set, objects with the same prefix will appear in the CommonPrefixes list.
IsTruncated Boolean If true, only a subset of the bucket’s upload contents were returned.
Upload Container A container for Key, UploadId, InitiatorOwner, StorageClass, and Initiated elements.
Key String The key of the object once the multipart upload is complete.
UploadId String The ID that identifies the multipart upload.
Initiator Container Contains the ID and DisplayName of the user who initiated the upload.
DisplayName String The initiator’s display name.
ID String The initiator’s ID.
Owner Container A container for the ID and DisplayName of the user who owns the uploaded object.
StorageClass String The method used to store the resulting object. STANDARD or REDUCED_REDUNDANCY.
Initiated Date The date and time the user initiated the upload.
CommonPrefixes Container If multiple objects contain the same prefix, they will appear in this list.
CommonPrefixes.Prefix String The substring of the key after the prefix as defined by the prefix request parameter.

Enable/Suspend Bucket Versioning

PUT /?versioning

This sub-resource set the versioning state of an existing bucket. To set the versioning state, you must be the bucket owner. You can set the versioning state with one of the following values:

  • Enabled: Enables versioning for the objects in the bucket, All objects added to the bucket receive a unique version ID.
  • Suspended: Disables versioning for the objects in the bucket, All objects added to the bucket receive the version ID null.

If the versioning state has never been set on a bucket, it has no versioning state; a GET versioning request does not return a versioning state value.

Syntax

PUT  /{bucket}?versioning  HTTP/1.1

Response Entities

Name Type Description
VersioningConfiguration Container A container for the request.
Status String Sets the versioning state of the bucket. Valid Values: Suspended/Enabled