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Namespace _Object

An object consists of data and its descriptive metadata.

Index

Properties

Optional ChecksumAlgorithm

ChecksumAlgorithm: (ChecksumAlgorithm | string)[]

The algorithm that was used to create a checksum of the object.

Optional ETag

ETag: undefined | string

The entity tag is a hash of the object. The ETag reflects changes only to the contents of an object, not its metadata. The ETag may or may not be an MD5 digest of the object data. Whether or not it is depends on how the object was created and how it is encrypted as described below:

  • Objects created by the PUT Object, POST Object, or Copy operation, or through the Amazon Web Services Management Console, and are encrypted by SSE-S3 or plaintext, have ETags that are an MD5 digest of their object data.

  • Objects created by the PUT Object, POST Object, or Copy operation, or through the Amazon Web Services Management Console, and are encrypted by SSE-C or SSE-KMS, have ETags that are not an MD5 digest of their object data.

  • If an object is created by either the Multipart Upload or Part Copy operation, the ETag is not an MD5 digest, regardless of the method of encryption. If an object is larger than 16 MB, the Amazon Web Services Management Console will upload or copy that object as a Multipart Upload, and therefore the ETag will not be an MD5 digest.

Optional Key

Key: undefined | string

The name that you assign to an object. You use the object key to retrieve the object.

Optional LastModified

LastModified: Date

Creation date of the object.

Optional Owner

Owner: Owner

The owner of the object

Optional Size

Size: undefined | number

Size in bytes of the object

Optional StorageClass

StorageClass: ObjectStorageClass | string

The class of storage used to store the object.