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Class: Aws::S3::ObjectAcl

Resources::Resource show all
Defined in:

Instance Attribute Summary collapse

Attributes inherited from Resources::Resource

#client, #identifiers

Instance Method Summary collapse

Methods inherited from Resources::Resource

add_data_attribute, add_identifier, #data, data_attributes, #data_loaded?, identifiers, #load, #wait_until

Methods included from Resources::OperationMethods

#add_batch_operation, #add_operation, #batch_operation, #batch_operation_names, #batch_operations, #operation, #operation_names, #operations

Constructor Details

#initialize(bucket_name, object_key, options = {}) ⇒ Object #initialize(options = {}) ⇒ Object


  • #initialize(bucket_name, object_key, options = {}) ⇒ Object


    • bucket_name (String)
    • object_key (String)

    Options Hash (options):

    • :client (Client)

      When `:client is not given, the options hash is used to construct a new Client object.

  • #initialize(options = {}) ⇒ Object

    Options Hash (options):

    • :bucket_name (required, String)
    • :object_key (required, String)
    • :client (Client)

      When `:client is not given, the options hash is used to construct a new Client object.

Instance Attribute Details

#bucket_nameString (readonly)


  • (String)

#grantsArray<Types::Grant> (readonly)

A list of grants.


#object_keyString (readonly)


  • (String)

#ownerTypes::Owner (readonly)

Container for the bucket owner\'s display name and ID.


  • (Types::Owner)

    Container for the bucket owner\'s display name and ID.

#request_chargedString (readonly)

If present, indicates that the requester was successfully charged for the request.

Possible values:

  • requester


  • (String)

    If present, indicates that the requester was successfully charged for the request.


Instance Method Details



#put(options = {}) ⇒ Types::PutObjectAclOutput

Uses the acl subresource to set the access control list (ACL) permissions for an object that already exists in a bucket. You must have WRITE_ACP permission to set the ACL of an object.

Depending on your application needs, you can choose to set the ACL on an object using either the request body or the headers. For example, if you have an existing application that updates a bucket ACL using the request body, you can continue to use that approach. For more information, see Access Control List (ACL) Overview in the Amazon S3 Developer Guide.

Access Permissions

You can set access permissions using one of the following methods:

  • Specify a canned ACL with the x-amz-acl request header. Amazon S3 supports a set of predefined ACLs, known as canned ACLs. Each canned ACL has a predefined set of grantees and permissions. Specify the canned ACL name as the value of x-amz-acl. If you use this header, you cannot use other access control-specific headers in your request. For more information, see Canned ACL.

  • Specify access permissions explicitly with the x-amz-grant-read, x-amz-grant-read-acp, x-amz-grant-write-acp, and x-amz-grant-full-control headers. When using these headers, you specify explicit access permissions and grantees (AWS accounts or Amazon S3 groups) who will receive the permission. If you use these ACL-specific headers, you cannot use x-amz-acl header to set a canned ACL. These parameters map to the set of permissions that Amazon S3 supports in an ACL. For more information, see Access Control List (ACL) Overview.

    You specify each grantee as a type=value pair, where the type is one of the following:

    • id – if the value specified is the canonical user ID of an AWS account

    • uri – if you are granting permissions to a predefined group

    • emailAddress – if the value specified is the email address of an AWS account

      Using email addresses to specify a grantee is only supported in the following AWS Regions:

      • US East (N. Virginia)

      • US West (N. California)

      • US West (Oregon)

      • Asia Pacific (Singapore)

      • Asia Pacific (Sydney)

      • Asia Pacific (Tokyo)

      • Europe (Ireland)

      • South America (São Paulo)

      For a list of all the Amazon S3 supported Regions and endpoints, see Regions and Endpoints in the AWS General Reference.

    For example, the following x-amz-grant-read header grants list objects permission to the two AWS accounts identified by their email addresses.

    x-amz-grant-read: emailAddress="", emailAddress=""

You can use either a canned ACL or specify access permissions explicitly. You cannot do both.

Grantee Values

You can specify the person (grantee) to whom you're assigning access rights (using request elements) in the following ways:


The ACL of an object is set at the object version level. By default, PUT sets the ACL of the current version of an object. To set the ACL of a different version, use the versionId subresource.

Related Resources


Request syntax example with placeholder values

  acl: "private", # accepts private, public-read, public-read-write, authenticated-read, aws-exec-read, bucket-owner-read, bucket-owner-full-control
  access_control_policy: {
    grants: [
        grantee: {
          display_name: "DisplayName",
          email_address: "EmailAddress",
          id: "ID",
          type: "CanonicalUser", # required, accepts CanonicalUser, AmazonCustomerByEmail, Group
          uri: "URI",
        permission: "FULL_CONTROL", # accepts FULL_CONTROL, WRITE, WRITE_ACP, READ, READ_ACP
    owner: {
      display_name: "DisplayName",
      id: "ID",
  content_md5: "ContentMD5",
  grant_full_control: "GrantFullControl",
  grant_read: "GrantRead",
  grant_read_acp: "GrantReadACP",
  grant_write: "GrantWrite",
  grant_write_acp: "GrantWriteACP",
  request_payer: "requester", # accepts requester
  version_id: "ObjectVersionId",
  use_accelerate_endpoint: false,

Options Hash (options):

  • :acl (String)

    The canned ACL to apply to the object. For more information, see Canned ACL.

  • :access_control_policy (Types::AccessControlPolicy)

    Contains the elements that set the ACL permissions for an object per grantee.

  • :content_md5 (String)

    The base64-encoded 128-bit MD5 digest of the data. This header must be used as a message integrity check to verify that the request body was not corrupted in transit. For more information, go to RFC 1864.>

  • :grant_full_control (String)

    Allows grantee the read, write, read ACP, and write ACP permissions on the bucket.

  • :grant_read (String)

    Allows grantee to list the objects in the bucket.

  • :grant_read_acp (String)

    Allows grantee to read the bucket ACL.

  • :grant_write (String)

    Allows grantee to create, overwrite, and delete any object in the bucket.

  • :grant_write_acp (String)

    Allows grantee to write the ACL for the applicable bucket.

  • :request_payer (String)

    Confirms that the requester knows that they will be charged for the request. Bucket owners need not specify this parameter in their requests. For information about downloading objects from requester pays buckets, see Downloading Objects in Requestor Pays Buckets in the Amazon S3 Developer Guide.

  • :version_id (String)

    VersionId used to reference a specific version of the object.

  • :use_accelerate_endpoint (Boolean)

    When true, the "" endpoint will be used.


See Also: