/root/children/ - all top level categories
/<category_slug>/children/ - all categories with category_slug as a parent
/<category_slug>/products/ - the products associated with category_slug
/purchased/ - all categories with purchased products associated with them
/purchase/<product_id>/ - mark the product product_id as purchased
/reset_purchases/ - mark all products as unpurchased
/reset_db/ - drop and recreate the database with fixtures