JsonFormat does not support extensions

[Eleanore Jin]

Hi Community, 

I just wonder if there is any workaround to convert Json to proto with extensions? 

Thanks a lot! 

Eleanore

[Josh Haberman]

Hi Eleanore,

Python and Go support this I believe, but the other languages currently do not.

There is now a conformance test for this behavior, though it's only "recommended":

https://github.com/protocolbuffers/protobuf/blob/63da77bc/conformance/binary_json_conformance_suite.cc#L1868-L1877

So other implementations may start adding support for this before too long.

[Eleanore Jin]

Hi Josh, 

Thanks a lot for the response, can you please point to me to library from go or pythong that can do the transformation from json to proto that respects extensions?

Maybe I can look into the code and see if we can do the same in Java. 

Thanks a lot!

Eleanore