go - Protocol Buffers 3 partial update -


i trying implement partial update protocol buffers 3 (using go). problem in cases it's not possible distinguish default (empty) values , same values set on purpose (like description set empty string clear it).

after digging found reference fieldmasks in this issue explains such values cannot distinguished, incremental update possible using fieldmasks.

i tried find documentation or guide explaining how use fieldmasks, couldn't.

so question is: how can achieve partial update proto3 (using fieldmasks)?

any appreciated.


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