Hello
i was looking about files or documents CRUD operations into SharePoint Apps and i couldn't found the information, so if someone gets or knows the info please check here the URL:
how to programmatic upload a file into a SharePoint using the JavaScript rest api?
how to made CRUD operations on a list element that has got a file stored on a document library?
an start point at this URL where upload docs are explained but in a element list with (and this would be great) knockout.js object using Javascript APi
Thanks for your contribution.