# onResponse property | |
[IncomingMessageSink](../../package-fidl_fidl/IncomingMessageSink.md) onResponse | |
_read / write_ | |
<p>Called whenever this object receives a response on a bound channel.</p> | |
<p>Used by subclasses of <a href="../../package-fidl_fidl/Proxy-class.md">Proxy<T></a> to receive responses to messages.</p> | |
## Implementation | |
```dart | |
IncomingMessageSink? onResponse; | |
``` | |