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# managedObjectID(forURIRepresentation:)

Returns the object identifier for the specified URI representation.

```
func managedObjectID(forURIRepresentation url: URL) -> NSManagedObjectID?
```

## Parameters

`url`

An URL object containing a URI that specify a managed object.

## Return Value

An object ID for the object specified by `url`.

## Discussion

The URI representation contains a UUID of the store the ID is coming from, and the coordinator can match it against the stores added to it.

## See Also

[`-  objectWithID:`](/documentation/CoreData/NSManagedObjectContext/object(with:))

Returns either an existing object from the context or a fault that represents that object.

[`-  URIRepresentation`](/documentation/CoreData/NSManagedObjectID/uriRepresentation())

Returns a URI that provides an archiveable reference to the object for the object ID.


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