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# netServiceWillPublish(_:)

Notifies the delegate that the network is ready to publish the service.

```
optional func netServiceWillPublish(_ sender: NetService)
```

## Parameters

`sender`

The service that is ready to publish.

## Discussion

Publication of the service proceeds asynchronously and may still generate a call to the delegate’s [`netService(_:didNotPublish:)`](/documentation/Foundation/NetServiceDelegate/netService(_:didNotPublish:)) method if an error occurs.

## See Also

  [Bonjour Overview](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/NetServices/Introduction.html#//apple_ref/doc/uid/10000119i)

  [NSNetServices and CFNetServices Programming Guide](https://developer.apple.com/library/archive/documentation/Networking/Conceptual/NSNetServiceProgGuide/Introduction.html#//apple_ref/doc/uid/TP40002736)


---

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