This endpoint is used for updating chunks. If the document ID is unspecified, a new document will be created.
The user should have these permissions:
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Request serializer for updating document chunks.
List of chunks to update or add to the document
ID of existing document to update (optional, creates new document if not provided)
Name for new document (required when creating new document)
Collection name (required when creating new document)