Send a rsc backup to a server over a POST request.

send-backup-to-server.rsc

{
        /export show-sensitive file=routeros-generic-config.rsc;
        :local deviceSerialNumber "1234";
        :local apiUsername "$deviceSerialNumber";
        :local apiPassword "secretPassword";
        :lcal backupServerDomain "cep-backup.ngtech.home"
        :local fileContent [/file get routeros-generic-config.rsc contents];
        :local apiUrl "https://$backupServerDomain/api/v1/backup/$apiUsename/generic";
        :local postData "$fileContent";
        :local contentLength [:len $fileContent];
        :put $contentLength;

        /tool fetch mode=https url=$apiUrl http-method=post \
                http-header-field="Content-Length: $contentLength,Content-Type: application/octet-stream" \
                http-data=$postData user=$apiUsername password=$apiPassword;
}