adds serializers for clojure objects

(clojure-module {}) => com.fasterxml.jackson.databind.module.SimpleModule

creates an object-mapper for json output

(object-mapper {}) => com.fasterxml.jackson.databind.ObjectMapper

reads json as clojure data

(read “{"a":1,"b":2}”) => {“a” 1, “b” 2}

returns cached json map of on a resource

writes clojure data to json

(write {:a 1 :b 2}) => “{"a":1,"b":2}”

writes clojure data to json bytes

(String. (write-bytes {:a 1 :b 2})) => “{"a":1,"b":2}”

pretty print json output

writes clojure data to a sink

(def -out- (java.io.ByteArrayOutputStream.))

(write-to -out- {:a 1 :b 2})

(.toString ^java.io.ByteArrayOutputStream -out-) => “{"a":1,"b":2}”