Please note. GetAllNodeIds may need to be only supported by NodeId Strings.
Unsless the NodeIds can also be a subscription, where any updates on the server side are sent to clients...

BR Rik

Here are some notes and questions regarding your request:<br>

(1) The TranslateBrowsePathsToNodeIds handles already an array of nodes.<br>
(2) A client should call TranslateBrowsePathsToNodeIds only the first time he does not know the NodeIds. After he received the NodeIds the first time, the client should store the NodeIds instead of the path.<br>

(Question:) Are you looking for an offline representation of the server address space?<br>

(Note:) Any way of getting a NodeId from a path or getting a snapshot of the server address space can be very slow for dynamic address spaces where the server has no optimized access to this information.

Discussion on phone conference:<br>
The recommendation on the client side short term is to have some kind of caching of NodeIds to make sure Translate is called only one time.<br>
Long term the solution that should solve this issue is to provide a way to upload the address space as file to the client.<br>
We will add such a feature request to OPC UA.

Created a feature request for the discussed option that would resolve the issue. See related issue.

Reviewed in Tuesday telecon and agreed to no-fix and close.