| #include <iostream> | |
| #include <nlohmann/json.hpp> | |
| using json = nlohmann::json; | |
| int main() | |
| { | |
| try | |
| { | |
| // calling at() for a non-existing key | |
| json j = {{"foo", "bar"}}; | |
| json k = j.at("non-existing"); | |
| } | |
| catch (json::exception& e) | |
| { | |
| // output exception information | |
| std::cout << "message: " << e.what() << '\n' | |
| << "exception id: " << e.id << std::endl; | |
| } | |
| } |