Official Google Data APIs Blog: Picasa Web Albums adds new API featuresI tried this:
- Searching a user's photos: You can search through all the photos belonging to a single user using the
qquery parameter. Example:http://picasaweb.google.com/data/feed/api/user/userID?kind=photo&q=penguinwill find all photos owned by user userID which contain the word 'penguin' in the title, caption or tag.
- Downloading the original photo: You can now download the original photo, including all EXIF data. This is accomplished by retrieving the feed with the
imgmax=dquery parameter and value This will return a feed where the
media:contentelements reference the original downloadable image.
http://picasaweb.google.com/data/feed/api/user/jfaughnan?imgmax=d. This produced a nice feed result in bloglines of all my public albums (if I'm not logged into Picasa) or ALL my albums (if I am logged in to Picasa), but only links to the albums.
http://picasaweb.google.com/data/feed/api/user/jfaughnnan?kind=photo&imgmax=d just gave me an error message.
Still working on this ...