require "picasa"

# get some photos in an album
client = Picasa::Client.new(user_id: "your-gmail-account@gmail.com", access_token: "oauth-access-token")

albums = client.album.list.entries
album = albums.find { |album| album.title == "New Album" }

photos = client.album.show(album.id).entries

photos.each { |photo| puts photo.title }