Load balancing with shard key

Starting from version 8.1, the shardkey parameter is added to the URL QueryString when sending requests to the ONLYOFFICE Docs API, document command service, document conversion service, or document builder service. It is also added to the browser-server interaction during the collaborative editing as the WOPISrc query parameter.

The key field is used as a value. For example, ?shardkey=Khirz6zTPdfd7. If there is no key in the body, you do not have to send it (for example, in the getForgottenList command).

This is a recommendation when working with an editor server cluster to load balance requests during the collaborative editing: all users editing the same document are served by the same server.