<!--
{
  "availability" : [
    "iOS: 9.0.0 -",
    "iPadOS: 9.0.0 -",
    "macCatalyst: 13.1.0 -",
    "macOS: 10.15.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 10.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "AVFoundation",
  "identifier" : "/documentation/AVFoundation/AVAssetDownloadURLSession/init(configuration:assetDownloadDelegate:delegateQueue:)",
  "metadataVersion" : "0.1.0",
  "role" : "Initializer",
  "symbol" : {
    "kind" : "Initializer",
    "modules" : [
      "AVFoundation"
    ],
    "preciseIdentifier" : "c:objc(cs)AVAssetDownloadURLSession(cm)sessionWithConfiguration:assetDownloadDelegate:delegateQueue:"
  },
  "title" : "init(configuration:assetDownloadDelegate:delegateQueue:)"
}
-->

# init(configuration:assetDownloadDelegate:delegateQueue:)

Creates a URL session to download assets.

```
init(configuration: URLSessionConfiguration, assetDownloadDelegate delegate: (any AVAssetDownloadDelegate)?, delegateQueue: OperationQueue?)
```

## Parameters

`configuration`

The configuration for this download session. The configuration you provide must be a *background* configuration or the system raises an exception.

`delegate`

The delegate object to handle asset download progress updates and other session related events.

`delegateQueue`

The queue to receive delegate callbacks on. If you specify `nil`, the system provides a serial queue.

## Return Value

A new download session.

## Discussion

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)