Capturing serverModified into a variable in Swift

Here's the recommended way to get the serverModified out of a Metadata object given by filesGetMetadata:

client!.files.getMetadata(path: path)
    .response {response, error in
        if let (metadata) = response {
            switch metadata {
                case let fileMetadata as Files.FileMetadata:
                    print("File metadata: \(fileMetadata)")
                    let serverModified = fileMetadata.serverModified
                    print("File serverModified: \(serverModified)")
                case let folderMetadata as Files.FolderMetadata:
                    print("Folder metadata: \(folderMetadata)")
                    // folders don't have serverModified
                case let deletedMetadata as Files.DeletedMetadata:
                    print("Deleted entity's metadata: \(deletedMetadata)")
                    // deleted entries don't have serverModified
                default:
                    print("default")
            }
        }
        else if let error = error {
            print(error)
        }
}

This method can return metadata for files, folders, or deleted items, so you need to check the type first, done here using the switch, since the latter two don't have serverModified.

Hope this helps!