Function requireString

app/src/API/Handlers/DataTablesHandler.cpp:41–48

* @brief Extracts a required non-empty string param or returns an error response. */

 * @brief Extracts a required non-empty string param or returns an error response.
 */
[[nodiscard]] static bool requireString(const QJsonObject& params, const QString& key, QString& out)
{
  if (!params.contains(key))
    return false;

  out = params.value(key).toString();
  return !out.isEmpty();
}

/**
 * @brief Converts a QJsonValue to a QVariant preserving numeric vs string type.