replace cheshire by jsonista (i.e. Jackson Core by Jackson Databind) for better performance

Author: source-c

project.clj

@@ -3,11 +3,11 @@
   :url "http://dkdhub.com"
   :license {:name "MIT"}
 
-  :dependencies [[cheshire "5.11.0"]
+  :dependencies [[metosin/jsonista "0.3.7"]
                  [commons-io "2.11.0"]
                  [clj-time "0.15.2"]
                  [com.eaio.uuid/uuid "3.2"]
                  [org.postgresql/postgresql "42.5.1"]]
 
   :omit-source false
-  :aot [libmisc-clj.jnio-proto])
+  :aot [libmisc-clj.jnio-proto])

src-clj/libmisc_clj/convert.clj

@@ -1,13 +1,13 @@
 (ns libmisc-clj.convert
-  (:require [cheshire.core :as json]))
+  (:require [jsonista.core :as json]))
 
 (defn json-response
   ([body] (json-response body 200))
   ([body code]
    {:status  code
     :headers {"Content-Type" "application/json; charset=utf-8"}
-    :body    (json/generate-string body)}))
+    :body    (json/write-value-as-string body)}))
 
 (defmacro json-error
   [msg code]
-  `(json-response {:error ~msg} ~code))
+  `(json-response {:error ~msg} ~code))