A current requirement is that assets uploaded to Amazon S3 must be accessed via SSL and use an expiring URL. Using an expiring url with Paperclip is extremely easy.
The problem is expiring_url doesn’t let you choose a style and doesn’t use https, which breaks our SSL site. To add the behaviour was an easy “hack”. I added the file /config/initializers/paperclip.rb with the following code:
def expiring_url(style = default_style, time = 3600)
:expires_in => time,
:use_ssl => true)
Now calling my expiring image URL with a style and over https is just: