Nsryjdtyk

My app had an option to share an online video to Facebook using graph API and was working until August 2018. I just discovered that publish_action got deprecated and that we cannot use graph API in order to share videos on Facebook.
So I tried another solution: to download the video locally, copy it to assets and then use the old FBSDKShareDialog to share it(setting the url on iOS bellow 11 and setting the asset on iOS >= 11), but the post on Facebook appeared without the video, only the text.
Then I tried it using the new ShareDialog class and because it works only with the video URL, after I copied it to assets I could not get its asset URL, but its file URL so I got the following error in the logs:

"Error while sharing video content Error Domain=com.facebook.sdk.share Code=2 "(null)" UserInfo={com.facebook.sdk:FBSDKErrorArgumentValueKey=file:///var/mobile/Media/DCIM/105APPLE/IMG_5953.MP4, com.facebook.sdk:FBSDKErrorDeveloperMessageKey=Must refer to an asset file., com.facebook.sdk:FBSDKErrorArgumentNameKey=videoURL}".

Here is my code. Please tell me what should I change in order to share a video on Facebook. If I share the URL then it shows only the URL in the post and I cannot show the video bellow.
Thanks in advance!

    private func downloadVideoForUploadOnFacebook(urlString: String, videoId: Int, isMyVideo: Bool, successHandler: @escaping () -> Void, failureHandler: @escaping (String) -> Void) {

        guard let url = URL(string: urlString) else {delegate.stopActivityIndicator(); return}



        let request = Alamofire.request(URLRequest(url: url))

        request.responseData {[weak self] (response) in

            if let data = response.result.value {



                let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!

                let videoURL = documentsURL.appendingPathComponent("video.mp4")

                do {

                    try data.write(to: videoURL)

                    self?.showShareDialog(localVideoUrl: videoURL, completion: {

                        print("success")

                        successHandler()

                    }, failure: { (error) in

                        print(error)

                        failureHandler(error)

                    })

                } catch {

                    print("Something went wrong!")

                }

            }

            }.downloadProgress { (progress) in

                print(progress)

        }

    }



    private func showShareDialog(localVideoUrl: URL, completion: @escaping () -> Void, failure: @escaping (String) -> Void) {

        guard let navigationController = UIApplication.shared.keyWindow?.rootViewController as? UINavigationController, let vc = navigationController.viewControllers.last else {return}

        if PHPhotoLibrary.authorizationStatus() == .authorized {

            showFacebookShareDialog(localVideoUrl: localVideoUrl, vc: vc, completion: completion, failure: failure)

        } else {

            PHPhotoLibrary.requestAuthorization({[weak self] (status) in

                switch status {

                case .authorized:

                    self?.showFacebookShareDialog(localVideoUrl: localVideoUrl, vc: vc, completion: completion, failure: failure)

                default:

                    print(status)

                    failure("Authorization error")

                }

            })

        }

    }



    private func showFacebookShareDialog(localVideoUrl: URL, vc: UIViewController, completion: @escaping () -> Void, failure: @escaping (String) -> Void) {

        var placeHolder : PHObjectPlaceholder?

        do {

            try PHPhotoLibrary.shared().performChangesAndWait {

                let creationRequest = PHAssetChangeRequest.creationRequestForAssetFromVideo(atFileURL: localVideoUrl )

                placeHolder = creationRequest?.placeholderForCreatedAsset

            }

        }

        catch {

            print(error)

            failure(error.localizedDescription)

        }





        let result = PHAsset.fetchAssets(withLocalIdentifiers: [placeHolder!.localIdentifier], options: nil)

        if let phAsset = result.firstObject {

            getURL(ofPhotoWith: phAsset, completionHandler: {[weak self] (url) in

                guard let url = url else {return}

                self?.showNewDialog(localVideoUrl: url, vc: vc, completion: completion, failure: failure)

//                if #available(iOS 11.0, *) {

//                    self?.showOldDialog(asset: phAsset, vc: vc)

//                } else {

//                    self?.showOldDialog(localVideoUrl: url, vc: vc)

//                }

            })

        } else {

            failure("Error at assets")

        }

    }



func showOldDialog(localVideoUrl: URL, vc: UIViewController) {

        let video = FBSDKShareVideo()

        video.videoURL = localVideoUrl

        let content = FBSDKShareVideoContent()

        content.video = video



        let shareDialog: FBSDKShareDialog = FBSDKShareDialog()

        shareDialog.shareContent = content

        shareDialog.fromViewController = vc

        DispatchQueue.main.async {

            shareDialog.show()

        }

    }



    func showOldDialog(asset: PHAsset, vc: UIViewController) {

        let video = FBSDKShareVideo()

        video.videoAsset = asset

        let content = FBSDKShareVideoContent()

        content.video = video



        let shareDialog: FBSDKShareDialog = FBSDKShareDialog()

        shareDialog.shareContent = content

        shareDialog.fromViewController = vc

        DispatchQueue.main.async {

            shareDialog.show()

        }

    }



    func showNewDialog(localVideoUrl: URL, vc: UIViewController, completion: @escaping () -> Void, failure: @escaping (String) -> Void) {

        let video = FacebookShare.Video(url: localVideoUrl)

        let content = VideoShareContent(video: video)

        let shareDialog = ShareDialog(content: content)

        shareDialog.mode = .native

        shareDialog.failsOnInvalidData = true

        shareDialog.presentingViewController = vc

        shareDialog.completion = { result in

            switch result {

            case .success:

                print("Share succeeded")

                completion()

            case .failed:

                print(result)

                failure("Error while sharing on facebook")

            case .cancelled:

                print("Share cancelled")

            }

        }



        DispatchQueue.main.async {

            do {

                try shareDialog.show()

            } catch {

                print(error)

                failure("Error while sharing video content (error)")

            }

        }

    }