server/index.ts

import express from "express";
import multer from "multer";
import fs from "fs";
import { uploadToHF } from "./upload";

const app = express();
const upload = multer({ dest: "tmp/" });

app.post("/api/upload", upload.single("file"), async (req, res) => {
  try {
    if (!req.file) return res.status(400).json({ error: "No file" });

    const url = await uploadToHF(
      req.file.path,
      req.file.originalname
    );

    fs.unlinkSync(req.file.path);

    res.json({ url });
  } catch (e: any) {
    res.status(500).json({ error: e.message });
  }
});

app.listen(3000, () => {
  console.log("Backend running :3000");
});