Add values to map using rapidjson - c++

Question

I get a raw json string
{"vehicle": {"brand": "zonda","color": "blue"},"username": {"brand": "doyota","color": "red"}}
from a get call i make.
I read that rapidjson is the best way to parse a json string in cpp.
So I tried doing something like this:
const char* json = data.c_str();
rapidjson::Document document;
if (document.Parse(json).HasParseError()) {
cout << "has parse error" << endl;
return 1;
}
else {
assert(document.IsObject());
}
Here it says that the json has a parse error. Any idea why this could be?
Also once I am able to parse the values I want to add them as key value pairs to a standard map. Could anyone point me in the right direction to proceed with this?

Answer 1

This gave me no error:
#include <iostream>
#include "rapidjson/document.h"
#include "rapidjson/error/en.h"
using namespace rapidjson;
int main() {
Document d;
std::string json = R"raw({"vehicle": {"brand": "zonda","color": "blue"},"username": {"brand": "doyota","color": "red"}})raw";
if (d.Parse(json.c_str()).HasParseError()) {
std::cout << "has error\n";
} else {
std::cout << "no error\n";
}
}
Tried C++11 - C++20 and it all seems fine. My guess is that you've got some non UTF8 character in the data.