iOS: Select a GIF from the photo library, convert to NSData for use in multipart/form-data

Question

What\'s currently working in my code:

I select a JPG or PNG from the Photo Library (using standard ImagePicker methods), and convert that image to NSData using:

Answer 1

Here's Eli's version using Swift 3:

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String: Any]) {
    guard let imageURL = info[UIImagePickerControllerReferenceURL] as? URL else { return }
    guard let asset = PHAsset.fetchAssets(withALAssetURLs: [imageURL], options: nil).lastObject else { return }

    if picker.sourceType == .photoLibrary || picker.sourceType == .savedPhotosAlbum {
        let options = PHImageRequestOptions()
        options.isSynchronous = true
        options.isNetworkAccessAllowed = false
        options.deliveryMode = .highQualityFormat
        PHImageManager.default().requestImageData(for: asset, options: options) { data, uti, orientation, info in
            guard let info = info else { return }

            if let error = info[PHImageErrorKey] as? Error {
                log.error("Cannot fetch data for GIF image: \(error)")
                return
            }

            if let isInCould = info[PHImageResultIsInCloudKey] as? Bool, isInCould {
                log.error("Cannot fetch data from cloud. Option for network access not set.")
                return
            }

            // do something with data (it is a Data object)
        }
    } else {
        // do something with media taken via camera
    }
}