Direct to S3 Image Uploads in Rails | Heroku Dev Center

This article demonstrates how to add direct S3 uploads to a Rails app. While there are many popular S3 image upload solutions for Ruby and Rails such as Paperclip and CarrierWave, these solutions use the server as a temporary cache. They typically upload the file to Heroku and then stream it to S3. While this works well for small files, larger files may be deleted from the dyno before they can be