feature (#2): add joke api endpoint

netlify/functions/joke.js

@@ -0,0 +1,15 @@
+// Jokes provided from the lovely folks at https://icanhazdadjoke.com
+import jokes from './jokes.json'
+
+export const handler = (event) => {
+  // Generates a random index based on the length of the jokes array
+  const randomIndex = Math.floor(Math.random() * jokes.length)
+  const randomJoke = jokes[randomIndex]
+
+  // Netlify Functions need to return an object with a statusCode
+  // Other properties such as headers or body can also be included.
+  return {
+    statusCode: 200,
+    body: JSON.stringify(randomJoke),
+  }
+}