buildQueryString function
Implementation
String buildQueryString(Map<String, dynamic> params) {
final queryString = StringBuffer();
if (params.isNotEmpty && !params.values.every((value) => value == null)) {
queryString.write('?');
}
var i = 0;
for (final key in params.keys) {
i++;
if (params[key] == null) {
continue;
}
queryString.write('$key=${Uri.encodeComponent(params[key].toString())}');
if (i != params.keys.length) {
queryString.write('&');
}
}
return queryString.toString();
}