app.js

const express = require("express");
const bp = require("body-parser");
const port = 5000;
const app = express();
const fs = require("fs");
const multer = require("multer");

app.use(bp.urlencoded({ extended: false }));
app.use(bp.json());

app.use(require("morgan")("dev"));

var storage = multer.memoryStorage();
var uploadMem = multer({ storage: storage });

app.post("/fileuploadmem", uploadMem.single("image"), (req, res) => {
  console.log(req.file);
  fs.writeFileSync('./'+req.file.originalname , req.file.buffer)
  console.log(" file mem  uploaded");
  res.send("file mem upload success");
});

app.listen(port, () => {
  console.log("Express server listning on port " + port);
});