|Think about Loose Coupling|
Re^2: JSON vs GPBby Jenda (Abbot)
|on Dec 25, 2012 at 18:07 UTC||Need Help??|
Would it? According to the GPB (assuming you both mean Google Protocol Buffers) homepage there are official mappings for C++, Java and Python and while the Google::ProtocolBuffers hadn't been updated in a while, it's quite possible it still works just fine.
Here's a link to third party libraries.