Regarding 401 unauthorized error rest api in clr C++

#include <iostream>
#include "WinHttpWrapper.h"
#include <string.h>

void PrintDictionary(const std::unordered_map<std::wstring, std::wstring="">& dict);

int main()
{
	using namespace std;
	const wstring domain = L"localhost";
	const wstring requestHeader = L"Content-Type: application/json";
	int port = 7272;
	bool https = true;
	
	
	using namespace WinHttpWrapper;

	HttpRequest req(domain, port, https);
	HttpResponse response;
    req.Post(L"/api/Auth/register",
		requestHeader,
		R"({"Username":"Balksharma","Password":"Radhe@12332"})",
		response);
	cout << "Returned Status:" << response.statusCode << endl;
	cout << "Content Length:" << response.contentLength << endl;
   string token = "bearer " + response.text;
   wcout << endl << response.header << endl;
   
   
   cout << "Get the register data by id" << endl;
	req.Get(L"/api/Auth/GetId",L"", response);
	cout << "Returned Status:" << response.statusCode;
	cout << "Returned Text:"<< response.text << endl;
	response.Reset();