Before we can upload post objects from mobile, its best to test that things are working correctly in the browser. In this lesson, we'll be updating our Post creation from to include a file selector input to pick images from our computer. Once we submit our form, we'll use the skipper-s3 library to easily upload images to our AWS S3 storage area. You'll have to be careful not to expose your credential keys when putting this type of information in your source code.