feat: kemal setup

shard.lock

@@ -0,0 +1,18 @@
+version: 2.0
+shards:
+  backtracer:
+    git: https://github.com/sija/backtracer.cr.git
+    version: 1.2.2
+
+  exception_page:
+    git: https://github.com/crystal-loot/exception_page.git
+    version: 0.4.1
+
+  kemal:
+    git: https://github.com/kemalcr/kemal.git
+    version: 1.5.0
+
+  radix:
+    git: https://github.com/luislavena/radix.git
+    version: 0.4.1
+

shard.yml

@@ -8,6 +8,10 @@ targets:
   url-shortener:
     main: src/url-shortener.cr
 
+dependencies:
+  kemal:
+    github: kemalcr/kemal
+
 crystal: '>= 1.12.1'
 
 license: MIT

src/url-shortener.cr

@@ -1,6 +1,7 @@
-# TODO: Write documentation for `Url::Shortener`
-module Url::Shortener
-  VERSION = "0.1.0"
+require "kemal"
 
-  # TODO: Put your code here
+get "/" do
+  "Hello World!"
 end
+
+Kemal.run