getHttp method
Implementation
Future<http.Response> getHttp(url, Map<String, String> queryParameter) {
queryParameter['timestamp'] =
DateTime.now().millisecondsSinceEpoch.toString();
var uri = Uri.https(baseUrl, url, queryParameter);
queryParameter['signature'] = createSignature(uri.query);
uri = Uri.https(baseUrl, url, queryParameter);
return http.get(uri,
headers: {"Accept": "application/json", 'X-MBX-APIKEY': apiKey});
}