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# read(from:ofType:)

Sets the contents of the receiver by reading from a file of a given type located by a given URL.

```
nonisolated func read(from absoluteURL: URL, ofType typeName: String) throws
```

## Parameters

`absoluteURL`

An URL that specifies the location from which to read the document.

`typeName`

The document type at `absoluteURL`.

## Discussion

This method sets the URL for the persistent object store associated with the receiver’s managed object context to `absoluteURL`.

> Handling Errors in Swift:
> In Swift, this method returns `Void` and is marked with the `throws` keyword to indicate that it throws an error in cases of failure.
> 
> You call this method in a `try` expression and handle any errors in the `catch` clauses of a `do` statement, as described in [Error Handling](https://docs.swift.org/swift-book/LanguageGuide/ErrorHandling.html) in [The Swift Programming Language](https://docs.swift.org/swift-book/) and `About Imported Cocoa Error Parameters`.

## See Also

[`configurePersistentStoreCoordinator(for:ofType:modelConfiguration:storeOptions:)`](/documentation/AppKit/NSPersistentDocument/configurePersistentStoreCoordinator(for:ofType:modelConfiguration:storeOptions:))

Configures the receiver’s persistent store coordinator with the appropriate stores for a given URL.


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