Download file from Firebase Storage using Alamofire in swift

Question

I'm very new in iOS development. So I'm trying to download pdf or image from firebase storage with URL using Alamofire and then I want to display with quicklook. I tried this example but no luck. Present preview of downloaded file directly in app

import UIKit
import Alamofire
import QuickLook

class DocumentViewer: UIViewController{
    var previewItem = URL?.self
    var refrenceDocURL: URL? // here i get the url from another view controller but never use it because I don't know where should I use it.
    
    func downloadFile(fileUrl: URL) {
        let destination: DownloadRequest.DownloadFileDestination = { _, _ in //ERROR: 'DownloadFileDestination' is not a member type of class 'Alamofire.DownloadRequest'
            let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
            let fileURL = documentsURL.appendingPathComponent(documentFilename)
            return (fileURL, [.removePreviousFile])
        }

        Alamofire.download(fileUrl, to: destination)   //ERROR: Module 'Alamofire' has no member named 'download'
            .response(completionHandler: { (downloadResponse) in

              let previewController = QLPreviewController()
              previewController.dataSource = self
              self.previewItem = downloadResponse.destinationURL
              self.present(previewController, animated: true, completion: nil)
          })
        }
      }

extension DocumentViewer: QLPreviewControllerDataSource {
    func numberOfPreviewItems(in controller: QLPreviewController) -> Int {
        return 1
    }

    func previewController(_ controller: QLPreviewController, previewItemAt index: Int) -> QLPreviewItem {
       return self.previewItem as! QLPreviewItem
    }
}

Jon Shier · Accepted Answer · 2022-07-08T21:37:04.990

0

Looks like you're using old definitions.

DownloadRequest.DownloadFileDestination is DownloadRequest.Destination.

Alamofire.download is AF.download.

edited Jul 08 '22 at 21:37

answered Jul 08 '22 at 19:50

Jon Shier

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I just installed the Alamofire and the verison = 5.6.1 – Mariglen Meta Jul 08 '22 at 20:55
Ah, then the problem is the inverse: you're using old type definitions. I've updated the answer. – Jon Shier Jul 08 '22 at 21:37

Download file from Firebase Storage using Alamofire in swift

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