Boost JSON property tree example

config.json

{
    "str_value": "string value",
    "int_value": 10
}

main.cpp

#include <iostream>

#include <boost/property_tree/json_parser.hpp>
#include <boost/property_tree/ptree.hpp>

int main()
{
    boost::property_tree::ptree pt;
    boost::property_tree::json_parser::read_json("config.json", pt);

    std::cout << pt.get<std::string>("str_value") << std::endl;
    std::cout << pt.get<int>("int_value") << std::endl;

    return 0;
}

Makefile

all:
	g++ main.cpp -lboost_system