Clojure

GET

(ns core
    (:require [clj-http.client :as client]))

  (clj-http.client/post "<YOUR ENDPOINT URL>"
    {
    :async? true
    :headers {"apikey" "<YOURTOKEN>"}
    :body "{\"options\": { \"method\": \"GET\",\"headers\": {\"Content-Type\": \"application/json\",\"Accept\": \"application/json\"}}, \"url\": \"/rest/api/3/issue/DEV-16\"}"
    }
    (fn [response] (println "response is:" response))
    (fn [exception] (println "exception message is: " (.getMessage exception)))
  )

POST

(ns core
    (:require [clj-http.client :as client]))

  (clj-http.client/post "<YOUR ENDPOINT URL>"
    {
    :async? true
    :headers {"apikey" "<YOURTOKEN>"}
    :body "{
      \"options\": {
         \"method\": \"POST\",
         \"headers\": {
          \"Content-Type\": \"application/json\",
          \"Accept\": \"application/json\"
        },
        \"body\": {
          \"fields\": {
            \"project\":{
              \"name\": \"<your project name>\"
            },
            \"summary\": \"Create Issue via POST.\",
            \"description\": \"Creating of an issue via a POST request using the API Key Manager\",
            \"issuetype\": {
              \"id\": \"<your issue type id>\"
            }
          }
        }
      },
      \"url\": \"/rest/api/2/issue\"
    }"
    }
    (fn [response] (println "response is:" response))
    (fn [exception] (println "exception message is: " (.getMessage exception)))
  )