When the optional Content-MD5 header is included, the final checksum of the stored file is compared against the MD5 value included in the header to ensure that the file was stored correctly. If the header is not included, an MD5 checksum is computed as the file is transferred to storage, and that value is used in the final comparison.
Copy Content
Purpose: Copies a piece of content from a source space to a destination space within a given store
The properties associated with the source content item are copied to the destination content item.
The source and destination spaces may be the same.
Including the optional header indicates that the copy action should retrieve the source file from a space in the specified storage provider. This allows for copying a file from one storage provider to another.
Set Content Properties
Purpose: Updates the properties associated with a piece of content