14. HTTP with Ring

Activity 14.01: Exposing Historic Tennis Results and ELO Calculations via REST

Solution:

1. Add the following dependencies to packt-clj.tennis in the deps.edn file:

   {:deps {..
           clj-http {:mvn/version "3.10.0"}
           compojure {:mvn/version "1.6.1"}
           metosin/muuntaja {:mvn/version "0.6.4"}
           org.clojure/data.json {:mvn/version "0.2.6"}
           ring/ring-core {:mvn/version "1.7.1"}
           ring/ring-jetty-adapter {:mvn/version "1.7.1"}}

2. Create our namespace with the following require route:

   (ns packt-clj.tennis.api
     (:require
       [clojure.edn :as edn]
       [compojure.core :refer [context defroutes...