Add youtube api cache

src/app.ts

@@ -39,6 +39,7 @@ import {endpoint as getSearchSegments } from "./routes/getSearchSegments";
 import {getStatus } from "./routes/getStatus";
 import ExpressPromiseRouter from "express-promise-router";
 import { Server } from "http";
+import { youtubeApiProxy } from "./routes/youtubeApiProxy";
 
 export function createServer(callback: () => void): Server {
     // Create a service (the app object is just a callback).
@@ -173,6 +174,8 @@ function setupRoutes(router: Router) {
     router.get("/api/status/:value", getStatus);
     router.get("/api/status", getStatus);
 
+    router.get("/api/youtubeApiProxy", youtubeApiProxy);
+
     if (config.postgres) {
         router.get("/database", (req, res) => dumpDatabase(req, res, true));
         router.get("/database.json", (req, res) => dumpDatabase(req, res, false));

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);
+    }
+}