My JSON file resembles this
{
"active" : false,
"list1" : ["A", "B", "C"],
"objList" : [
{
"key1" : "value1",
"key2" : [ 0, 1 ]
}
]
}
Using nlohmann json now, I've managed to store it and when I do a dump jsonRootNode.dump()
, the contents are represented properly.
However I can't find a way to access the contents.
I've tried jsonRootNode["active"]
, jsonRootNode.get()
and using the json::iterator
but still can't figure out how to retrieve my contents.
I'm trying to retrieve "active"
, the array from "list1"
and object array from "objList"
The following link explains the ways to access elements in the JSON. In case the link goes out of scope here is the code
#include <json.hpp>
using namespace nlohmann;
int main()
{
// create JSON object
json object =
{
{"the good", "il buono"},
{"the bad", "il cativo"},
{"the ugly", "il brutto"}
};
// output element with key "the ugly"
std::cout << object.at("the ugly") << '\n';
// change element with key "the bad"
object.at("the bad") = "il cattivo";
// output changed array
std::cout << object << '\n';
// try to write at a nonexisting key
try
{
object.at("the fast") = "il rapido";
}
catch (std::out_of_range& e)
{
std::cout << "out of range: " << e.what() << '\n';
}
}