Parse type std::unordered_map is throwing error

[paulocoutinhox]

Hi,

How i can parser this type:

std::unordered_map<std::string, std::string>

My struct:

struct Todo final
{
    int64_t id;
    std::string title;
    std::string body;
    std::unordered_map<std::string, std::string> data;
    bool done;
    std::chrono::system_clock::time_point createdAt;
    std::chrono::system_clock::time_point updatedAt;
    Todo(int64_t id_,
         std::string title_,
         std::string body_,
         std::unordered_map<std::string, std::string> data_,
         bool done_,
         std::chrono::system_clock::time_point createdAt_,
         std::chrono::system_clock::time_point updatedAt_)
        : id(std::move(id_)), title(std::move(title_)), body(std::move(body_)), data(std::move(data_)), done(std::move(done_)), createdAt(std::move(createdAt_)), updatedAt(std::move(updatedAt_))
    {
    }
};

And the parser code:

auto json = nlohmann::json::parse(buffer);

try
{
    if (json != nullptr)
    {
        auto todo = Todo{
                0,
                json["title"].get<std::string>(),
                json["body"].get<std::string>(),
                json["data"].get<std::unordered_map<std::string, std::string>>(),
                json["done"].get<bool>(),
                DateTime::getCurrentDateTime(),
                DateTime::getCurrentDateTime(),
        };

        auto resp = ResponseHelper::create();
        resp.success = true;
        resp.message = "list";
    }
}
catch (std::exception &e)
{
    Logger::e("[HttpServerTodoController : actionTodoCreate] Error: " + std::string(e.what()));
}

When i debug the code stop here:

json["data"].get<std::unordered_map<std::string, std::string>>(),

And the error message is:

[ERROR] [HttpServerTodoController : actionTodoCreate] Error: [json.exception.type_error.302] type must be string, but is boolean

And the json:

{
    "title": "new todo",
    "body": "body\nnew todo\nyes",
    "data": {
        "d1": "v1",
        "d2": true
    },
    "done": true,
    "createdAt": 1626398336711,
    "updatedAt": 1626398336712
}

What im doing wrong?

[paulocoutinhox]

I found problem:

All need be string:

"data": {
        "d1": "v1",
        "d2": "true"
},

And not:

"data": {
        "d1": "v1",
        "d2": true
},

Thanks.