cppFollyDynamicExample

    folly::dynamic json{
        folly::dynamic::object ("desc", folly::dynamic::object ("id", 10)("name","John"))("data", folly::dynamic::array (42,33,26))
    };

    std::string jsonStr{ folly::toJson (json) };
    std::cout << "JSON: " << jsonStr << '\n';

    folly::dynamic fromJson{ folly::parseJson (jsonStr) };
    auto dynData{ fromJson["data"] };

    int id{ fromJson["desc"]["id"].asInt () };
    std::string name{ fromJson["desc"]["name"].asString () };
    std::array<int, 3> data;
    auto dataIter{ data.begin () };

    //std::copy (dynData.begin (), dynData.end (), data.begin ());
    std::for_each (dynData.begin (), dynData.end (), [&dataIter] (folly::dynamic item) { *dataIter++ = item.asInt (); /*std::cout << item.asInt () << ' ';*/ });
    std::cout << '\n';

    std::cout << "ID: " << id << '\n';
    std::cout << "NAME: " << name << '\n';

    std::cout << "DATA: ";

    for (const auto val : data)
    {
        std::cout << val << ' ';
    }

    std::cout << '\n';