Use the https://github.com/open-source-parsers/jsoncpp . This is quite good for C++ code. A good document for usage is at http://garajeando.blogspot.com/search/label/JsonCpp
https://www.youtube.com/watch?v=9TFV2JxX7L0 : Introduction to Modern C++ (Part 1) By Michael Caisse
https://www.youtube.com/watch?v=hcHUZE6buzE&feature=youtu.be : CppCon 2015: Zach Laine "Writing Great Libraries: 89 Easy Steps"
https://www.youtube.com/watch?v=86xWVb4XIyE : Bjarne Stroustrup - The Essence of C++
https://www.youtube.com/watch?v=1OEu9C51K2A : CppCon 2015: Bjarne Stroustrup “Writing Good C++14”
https://www.youtube.com/watch?v=hEx5DNLWGgA : CppCon 2015: Herb Sutter "Writing Good C++14... By Default"
https://www.youtube.com/watch?v=xnqTKD8uD64 : CppCon 2014: Herb Sutter "Back to the Basics! Essentials of Modern C++ Style"
https://www.youtube.com/watch?v=PorfLSr3DDI : CppCon 2015: Greg Law " Give me 15 minutes & I'll change your view of GDB"
https://www.youtube.com/watch?v=5FQwQ0QWBTU : CppCon 2015: Atila Neves "Emacs as a C++ IDE"