// Creating http_client
http_client_config config;
wchar_t* profileUserName = U("Admin");
const wchar_t* profilePassword = U("");

http::client::credentials cred(profileUserName,profilePassword);

config.set_credentials(cred);
http_client client(U("http://localhost:8091"),config);
// create header
http_request req(methods::GET);
// Add base64 result to header
req.headers().add(L"Authorization", L"Basic XYZtaW46Wr6yZW0xMAXY");
//req.headers().add(L"Admin", L"");
req.set_request_uri(L"/api/v1/Dimensions");
pplx::task<http_response> responses = client.request(req);
pplx::task<web::json::value> jvalue = responses.get().extract_json();
wcout << jvalue.get().as_string();