#include <iostream>

#include <nlohmann/json.hpp>

using json = nlohmann::json;

int main()

{

// create JSON object

json object =

{

{"the good", "il buono"},

{"the bad", "il cattivo"},

{"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';

// exception type_error.304

try

{

// use at() on a non-object type

json str = "I am a string";

str.at("the good") = "Another string";

}

catch (json::type_error& e)

{

std::cout << e.what() << '\n';

}

// exception out_of_range.401

try

{

// try to write at a nonexisting key

object.at("the fast") = "il rapido";

}

catch (json::out_of_range& e)

{

std::cout << e.what() << '\n';

}

}