Initial commit of working implementation

src/get-arnie-quotes.ts

@@ -1,10 +1,70 @@
 import { httpGet } from './mock-http-interface';
 
-// TODO define this type properly
-type TResult = any;
+// Keys accepted by the TResult type
+type Keys = 'Arnie Quote' | 'FAILURE';
 
+// TResult (array of which to return)
+type TResult = {
+    [K in Keys]?: string;
+}
+
+// Result returned by the httpGet method
+type getResult = {
+    status: number,
+    body: string,
+}
+
+// The body of the getResult type, when decoded from json string
+type getResultBody = {
+    message: string,
+}
+
+/**
+ * Get and parse results from the mock http server
+ * Note: I went a little overboard with the comments, so you know how I was thinking about this
+ *
+ * @param {string[]} url
+ * @return {Promise<TResult[]>}
+ */
 export const getArnieQuotes = async (urls : string[]) : Promise<TResult[]> => {
-  // TODO: Implement this function.
-  
-  return [];
+
+    // Array to return
+    let t_results: TResult[] = [];
+
+    // All needing to resolve before returning (using Promise.all(promises))
+    let promises: Promise<void>[] = [];
+
+    // Iterate through all urls
+    for (let url of urls) {
+        // Get the data from the url
+        let promise: Promise<void> = httpGet(url)
+            .then((result: getResult) => {
+
+                // Determine whether the mock api call was successful
+                let getResultKey: Keys = 'FAILURE';
+                if (result.status === 200) {
+                    getResultKey = 'Arnie Quote';
+                }
+
+                // Decode the result_body
+                let result_body: getResultBody = JSON.parse(result.body);
+
+                // Push the results to the return array
+                t_results.push({
+                    [getResultKey]: result_body.message,
+                } as TResult);
+
+                // Resolve the promise after we are done
+                return Promise.resolve();
+            });
+
+            // Push the promise to the "promises" array
+            promises.push(promise);
+    }
+
+    // Wait for all promises to resolve
+    await Promise.all(promises);
+
+    // Return the data
+    return t_results;
 };