int64_t mongoc_apm_command_started_get_server_connection_id_int64 ( const mongoc_apm_command_started_t *event);
Returns the server connection ID for the command. The server connection ID is distinct from the server ID (mongoc_apm_command_started_get_server_id()) and is returned by the hello or legacy hello response as “connectionId” from the server on 4.2+.
event: A mongoc_apm_command_started_t.
The server connection ID as a positive integer or -1 if it is not available.