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src/web/endpoints/back/getTrackMetadata.ts

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+import { appleMusicApi } from "../../../api/index.js";
+import express from "express";
+
+const router = express.Router();
+
+// this endpoint isn't actually used for anything by us
+// it's for people who want to implement apple music downloading into their own apps
+// it makes it a bit easier to get the metadata for a track knowing the trackId
+router.get("/getTrackMetadata", async (req, res, next) => {
+    try {
+        const { trackId } = req.query;
+        if (typeof trackId !== "string") { res.status(400).send("trackId is required and must be a string!"); return; }
+
+        const trackMetadata = await appleMusicApi.getSong(trackId);
+        const trackAttributes = trackMetadata.data[0].attributes;
+
+        res.json(trackAttributes);
+    } catch (err) {
+        next(err);
+    }
+});
+
+export default router;