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# serviceConnectionWithName:rootObject:

Creates and returns a new connection object representing a vended service on the default system port name server.

```
+ (instancetype) serviceConnectionWithName:(NSString *) name rootObject:(id) root;
```

## Parameters

`name`

The name of the service you want to publish.

`root`

The object to use as the root object for the published service. This is the object vended by the connection.

## Return Value

An `NSConnection` object representing the vended service or `nil` if there was a problem setting up the connection object.

## Discussion

This method creates the server-side of a connection object and registers it with the default system port name server. Clients wishing to connect to this service can request a communications port from the same port server and use that port to communicate.

## See Also

[`+ (NSPortNameServer *) systemDefaultPortNameServer;`](/documentation/Foundation/NSPortNameServer/systemDefaultPortNameServer)

Returns the single instance of `NSPortNameServer` for the application.

[`+ (instancetype) connectionWithRegisteredName:(NSString *) name host:(NSString *) hostName;`](/documentation/Foundation/NSConnection/connectionWithRegisteredName:host:)

Returns the `NSConnection` object whose send port links it to the `NSConnection` object registered with the default `NSPortNameServer` under a given name on a given host.


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