When a recipe is {{{GET}}} or {{{PUT}}} as JSON the following form is used:

{{{ { "recipe": [ ["bag name 1", "select=tag:blog"], ["bag name 2", ""] ], "policy": { "read": [], "write": [], "create": [], "delete": [], "manage": [], "owner": '' }, "desc": "optional description of the bag (may be an empty string or absent)", } }}}

Note that when doing a {{{PUT}}} what you send will fully replace anything that already exists.