This scrips daily fetchs 5 interesting pictures from 2 days ago from Flickr. It selects a random photo from those five photos and sets it as desktop wallpaper. The setting Desktop Wallpaper feature supports only for Linux Mint 17.X. and Ubuntu.
API Key required Get it here: Flickr App Garden
flickr.interestingness.getList
api_key (Required) : Your API application key. See here for more details.
date (Optional) : A specific date, formatted as YYYY-MM-DD, to return interesting photos for.
extras (Optional) : A comma-delimited list of extra information to fetch for each returned record. Currently supported fields are: description, license, date_upload, date_taken, owner_name, icon_server, original_format, last_update, geo, tags, machine_tags, o_dims, views, media, path_alias, url_sq, url_t, url_s, url_q, url_m, url_n, url_z, url_c, url_l, url_o
per_page (Optional) : Number of photos to return per page. If this argument is omitted, it defaults to 100. The maximum allowed value is 500.
page (Optional) : The page of results to return. If this argument is omitted, it defaults to 1.
https://api.flickr.com/services/rest/?method=flickr.interestingness.getList&date=2016-04-11&per_page=5&api_key=YOUR_API_KEY
Check the sample.xml file for Sample XML response.
https://farm{farm-id}.staticflickr.com/{server-id}/{id}_{secret}_[mstzb].jpg
For more info Photo Source URLs
Once the image is downloaded its stored in your home directory in Pictures/Flickr Linux Mint 17.X users with Cinnamon DE supporting Gnome 3.XX can set wallpapers using:
gsettings set org.cinnamon.desktop.background picture-uri file:////absolute_path_of_image_no_spaces
For Ubuntu Unity Users:
gsettings set org.gnome.desktop.background picture-uri file:////absolute_path_of_image_no_spaces