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List Objects

s3_list_objects R Documentation

This operation is not supported by directory buckets

Description

This operation is not supported by directory buckets.

Returns some or all (up to 1,000) of the objects in a bucket. You can use the request parameters as selection criteria to return a subset of the objects in a bucket. A 200 OK response can contain valid or invalid XML. Be sure to design your application to parse the contents of the response and handle it appropriately.

This action has been revised. We recommend that you use the newer version, list_objects_v2, when developing applications. For backward compatibility, Amazon S3 continues to support list_objects.

The following operations are related to list_objects:

  • list_objects_v2

  • get_object

  • put_object

  • create_bucket

  • list_buckets

Usage

s3_list_objects(Bucket, Delimiter, EncodingType, Marker, MaxKeys,
  Prefix, RequestPayer, ExpectedBucketOwner, OptionalObjectAttributes)

Arguments

Bucket

[required] The name of the bucket containing the objects.

Directory buckets - When you use this operation with a directory bucket, you must use virtual-hosted-style requests in the format Bucket_name.s3express-az_id.region.amazonaws.com. Path-style requests are not supported. Directory bucket names must be unique in the chosen Availability Zone. Bucket names must follow the format bucket_base_name--az-id--x-s3 (for example, DOC-EXAMPLE-BUCKET--usw2-az2--x-s3). For information about bucket naming restrictions, see Directory bucket naming rules in the Amazon S3 User Guide.

Access points - When you use this action with an access point, you must provide the alias of the access point in place of the bucket name or specify the access point ARN. When using the access point ARN, you must direct requests to the access point hostname. The access point hostname takes the form AccessPointName-AccountId.s3-accesspoint.Region.amazonaws.com. When using this action with an access point through the Amazon Web Services SDKs, you provide the access point ARN in place of the bucket name. For more information about access point ARNs, see Using access points in the Amazon S3 User Guide.

Access points and Object Lambda access points are not supported by directory buckets.

S3 on Outposts - When you use this action with Amazon S3 on Outposts, you must direct requests to the S3 on Outposts hostname. The S3 on Outposts hostname takes the form AccessPointName-AccountId.outpostID.s3-outposts.Region.amazonaws.com. When you use this action with S3 on Outposts through the Amazon Web Services SDKs, you provide the Outposts access point ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see What is S3 on Outposts? in the Amazon S3 User Guide.

Delimiter

A delimiter is a character that you use to group keys.

EncodingType
Marker

Marker is where you want Amazon S3 to start listing from. Amazon S3 starts listing after this specified key. Marker can be any key in the bucket.

MaxKeys

Sets the maximum number of keys returned in the response. By default, the action returns up to 1,000 key names. The response might contain fewer keys but will never contain more.

Prefix

Limits the response to keys that begin with the specified prefix.

RequestPayer

Confirms that the requester knows that she or he will be charged for the list objects request. Bucket owners need not specify this parameter in their requests.

ExpectedBucketOwner

The account ID of the expected bucket owner. If the account ID that you provide does not match the actual owner of the bucket, the request fails with the HTTP status code ⁠403 Forbidden⁠ (access denied).

OptionalObjectAttributes

Specifies the optional fields that you want returned in the response. Fields that you do not specify are not returned.

Value

A list with the following syntax: 

list(
  IsTruncated = TRUE|FALSE,
  Marker = "string",
  NextMarker = "string",
  Contents = list(
    list(
      Key = "string",
      LastModified = as.POSIXct(
        "2015-01-01"
      ),
      ETag = "string",
      ChecksumAlgorithm = list(
        "CRC32"|"CRC32C"|"SHA1"|"SHA256"
      ),
      Size = 123,
      StorageClass = "STANDARD"|"REDUCED_REDUNDANCY"|"GLACIER"|"STANDARD_IA"|"ONEZONE_IA"|"INTELLIGENT_TIERING"|"DEEP_ARCHIVE"|"OUTPOSTS"|"GLACIER_IR"|"SNOW"|"EXPRESS_ONEZONE",
      Owner = list(
        DisplayName = "string",
        ID = "string"
      ),
      RestoreStatus = list(
        IsRestoreInProgress = TRUE|FALSE,
        RestoreExpiryDate = as.POSIXct(
          "2015-01-01"
        )
      )
    )
  ),
  Name = "string",
  Prefix = "string",
  Delimiter = "string",
  MaxKeys = 123,
  CommonPrefixes = list(
    list(
      Prefix = "string"
    )
  ),
  EncodingType = "url",
  RequestCharged = "requester"
)

Request syntax

svc$list_objects(
  Bucket = "string",
  Delimiter = "string",
  EncodingType = "url",
  Marker = "string",
  MaxKeys = 123,
  Prefix = "string",
  RequestPayer = "requester",
  ExpectedBucketOwner = "string",
  OptionalObjectAttributes = list(
    "RestoreStatus"
  )
)

Examples

## Not run: 
# The following example list two objects in a bucket.
svc$list_objects(
  Bucket = "examplebucket",
  MaxKeys = "2"
)

## End(Not run)