I hope this is the right place to talk about this...
I'm planning to create an HTML5 web application which basically download new contents, something like the financial times app. I want to use drupal such as base where I can upload contents and the export it such as json view. In the web app I would like to create a local database where i will add the contents. To keep it update I will compare the last content creation date in the app with the last content creation date on drupal, if they are not the same it will download the latest contents and add it into the db. This is "quite simple", let's move to my problem now... I've got one image per each content and, to see the images offline, I need to add it to the manifest file every time a new content is added.
How can I get this? Or if you think I should use another method, let me know.
Thanks in advance.