Writing a value to a non-existent node

[unregistered33]

Hi!
How to check if node exists on the server?
Thanks!

[oroulet]

try to read a paramter for example. Any read (or write) operation anyway end up with one network call, with about the same cost

[AndreasHeine]

after the client has connected you browse/read the nodes for the first time and after that you subscribe the modelchangeevents https://reference.opcfoundation.org/Core/Part3/9.32.7/

as long these events are not been emitted the node should be still present!