json-glib with jsonobject. Can convert nested json as well

CMakeLists.txt

cmake_minimum_required (VERSION 2.4)
project (json-glib-demo)

find_package(PkgConfig REQUIRED)
pkg_search_module(JSONGLIB REQUIRED json-glib-1.0)

add_executable (json-glib-demo jsontest.cpp)
include_directories(${JSONGLIB_INCLUDE_DIRS})
target_link_libraries(json-glib-demo ${JSONGLIB_LIBRARIES})

jsontest.cpp

#include <stdio.h>
#include <string>
#include <glib-object.h>
#include <json-glib/json-glib.h>

int main()
{
    std::string data = "{\"response\": {\"reason\": \"get line info success.\",\"result\": \"true\"}}";
    JsonParser *parser = json_parser_new ();
    GError* err = NULL;
    if (!json_parser_load_from_data (parser, data.c_str(), -1, &err)) {
        printf("error in parsing json data %s", err->message);
        g_error_free (err);
        g_object_unref (parser);
        return -1;
    }

    JsonObject *object = json_node_get_object(json_parser_get_root(parser));
    JsonObject* response = json_object_get_object_member(object, "response");
    GList *mylist = json_object_get_members(response);
    while (mylist != NULL) {
        printf("list= %s\n", (const char*)mylist->data);
        //JsonObject *each_object = json_object_get_object_member(response, (const char*)mylist->data);
        printf("reason = %s\n", json_object_get_string_member(response, (const char*)mylist->data));
        mylist = mylist->next;
    }

    g_object_unref (parser);
    return 0;
}