Sometimes it is very useful to create JSON encoded strings for representing and exchanging data. What is be best way of encoding a Boost property tree into a JSON string?
Here is a sample code for doing that task:
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/json_parser.hpp>
#include <boost/optional.hpp>
#include <iostream>
#include <sstream>
#include <cstdlib>
int main()
{
boost::property_tree::ptree pt;
pt.put("Test", "string");
pt.put("Test2.inner0", "string2");
pt.put("Test2.inner1", "string3");
pt.put("Test2.inner2", 1234);
std::stringstream ss;
boost::property_tree::json_parser::write_json(ss, pt);
std::cout << ss.str() << std::endl;
return 0;
}
To compile this code with GCC:
g++ main.cpp -lboost_system -o SamplePT_JSON
And here is the expected output:
{
"Test": "string",
"Test2":
{
"inner0": "string2",
"inner1": "string3",
"inner2": "1234"
}
}