extern int doRestApi(struct MHD_Connection *connection, AFB_session *session, const char* url, const char *method
, const char *upload_data, size_t *upload_data_size, void **con_cls);
extern int doRestApi(struct MHD_Connection *connection, AFB_session *session, const char* url, const char *method
, const char *upload_data, size_t *upload_data_size, void **con_cls);