I’ve been trying to get this to work, but cannot figure out what is going on. I’m expecting the :type value to be converted to a string:

(m/encode
 [:schema {:registry
           {::node [:multi {:dispatch      :type
                            :decode/string #(update % :type keyword)}
                    [:malli.core/default
                     [:map
                      [:type :keyword]]]]}}
  ::node]
 {:type  :doc}
 mt/string-transformer)

=> {:type :doc}

{:type "doc"}

(m/encode
 [:map
  [:type :keyword]]
 {:type  :doc}
 mt/string-transformer)

=> {:type "doc"}

What's the difference between parsing data and decoding data? My sense is that parse is similar to spec's conform, whereas decode is more about transformation - is that generally right?

decoding is a process of transforming values from external formats into valid clojure data. Parsing returns the parse trees.

@ingesol what version are you using. CHANGELOG says it's fixed in 0.5.0