Session: How to Get Entity Change-Vector

• The change-vector reflects the cluster-wide point in time in which a change occured, and includes the unique database ID, node identifier, and document Etag in the specific node.
• When a document is downloaded from the server, it contains various metadata information.
  E.g. ID or current change-vector.
• The current change-vector is stored within the session metadata and is available for each entity using the getChangeVectorFor() method from the advanced session operations.

Syntax

session.advanced.getChangeVectorFor(entity);

Example

const employee = await session.load("employees/1-A");
const changeVector = session.advanced.getChangeVectorFor(employee);