Optional
allowIf set to true
, the request will explicitly permit ArangoDB to return a
potentially dirty or stale result and arangojs will load balance the
request without distinguishing between leaders and followers.
Optional
ifIf set to a document revision, the document will only match if its _rev
matches the given revision.
Optional
ifIf set to a document revision, the document will only match if its _rev
does not match the given revision.
Options for checking whether a document exists in a collection.