Question: How in the OpenRTI to make the rti send callbacks? For example, reserve a name with the `reserveObjectInstanceName`

```
_rtiAmbassador->reserveObjectInstanceName(name);

```

Errors:

> 
> terminate called after throwing an instance of
>  'rti1516e::ObjectInstanceNameNotReserved'
> 
> 
>

Answer: 
Can you try something like this:

```
import { interval } from 'rxjs';

interval(1000).subscribe(x => {
// something
});

```
\*// Use RxJS v6+ and emit value in sequence every 1 second

```
import { interval } from 'rxjs';
const source = interval(1000);
const subscribe = source.subscribe(val => console.log(val));

```

*//output: 0,1,2,3,4,5....*