Add youtube api cache

src/routes/youtubeApiProxy.ts

@@ -0,0 +1,21 @@
+import { Request, Response } from "express";
+import { YouTubeAPI } from "../utils/youtubeApi";
+
+
+export async function youtubeApiProxy(req: Request, res: Response): Promise<Response> {
+    if (req.query.key !== "8NpFUCMr2Gq4cy4UrUJPBfGBbRQudhJ8zzex8Gq44RYDywLt3UtbbfDap3KPDbcS") {
+        return res.send("Invalid key").status(403);
+    }
+
+    const videoID = req.query.videoID;
+    if (videoID === undefined || typeof(videoID) !== "string" || videoID.length !== 11) {
+        return res.status(400).send("Invalid parameters");
+    }
+
+    const result = await YouTubeAPI.listVideos(videoID);
+    if (result.err) {
+        return res.send("API failure").status(500);
+    } else {
+        return res.send(result.data).status(200);
+    }
+}