checksumType
This header specifies the checksum type of the object, which determines how part-level checksums are combined to create an object-level checksum for multipart objects. For PutObject
uploads, the checksum type is always FULL_OBJECT
. You can use this header as a data integrity check to verify that the checksum type that is received is the same checksum that was specified. For more information, see Checking object integrity in the Amazon S3 User Guide.