Function json_replace_example4

examples/src/jsonpath_examples.cpp:387–402

}

void json_replace_example4()
{
    std::ifstream is("./input/books.json");
    auto data =jsoncons::json::parse(is);

    auto f = [](const std::string& /*location*/, jsoncons::json& book) 
    {
        if (book.at("category") == "memoir" && !book.contains("price"))
        {
            book.try_emplace("price",140.0);
        }
    };

    jsonpath::json_replace(data, "$.books[*]", f);
    std::cout << pretty_print(data) << "\n\n";
}

void jsonpath_complex_examples()
{