1. Successfully built the service.
2. Successfully get the config parameters values by calling:
```
const std::string cert_path =
config::ConfigManager::getInstance().getParameter(
config::ConfigManager::OPTION_NOTIFS_APNS_P12_CERT_PATH);
const std::string cert_password =
config::ConfigManager::getInstance().getParameter(
config::ConfigManager::OPTION_NOTIFS_APNS_P12_CERT_PASSWORD);
const std::string fcm_server_key =
config::ConfigManager::getInstance().getParameter(
config::ConfigManager::OPTION_NOTIFS_FCM_SERVER_KEY);
```
3. App start fails with the appropriate error when some of the required parameters are not existent in the config file.