Open File Picker Dialog

My app wants to export files to users' Box accounts. I want to allow them to easily select a destination folder. I don't want to include the Box UI elements in my node modules. It would be great to launch a Box URL in a popup window with a redirect uri (similar to the oauth flow) that posts the path of the folder selected by the client. This would make it very easy to allow the client to select a destination folder and give my app the info required to upload content to that destination with very minimal code.