I'm wondering, after looking at the examples, I still can't really figure out how to decode a string into lowercase. I have something like this:

(def foo [:map
            {:closed true}
            [:name [:string {:max 256 :error/message "should be at most 256 characters"}]]
            [:email-address [:string {:decode/string 'clojure.string/lower-case :min 5 :max 100 :error/message "should be between 5 and 100 characters"}]]])

  (m/validate foo {:name "foo" :email-address ""}) ;; true

  (m/decode signup-request {:name "foo" :email-address ""} mt/json-transformer) ;; {:name "foo", :email-address ""}

What my objective is (in tandem with reitit), is to ensure that the email address coming in is all in lowercase. Bit of a puzzler.

Any pointers would be appreciated. Thank you.

Hi, I am looking at this example:

(m/validate [:alt keyword? string?] ["foo"]) ; => true

(m/validate [:alt keyword? string?] "foo") ; => true