In this tutorial, we are going to learn how to upload images on the server with multer and express in Node.js. File upload is a common operation for any project. Node.js with the Express Web Framework and the multer Library, this tutorial we adding a file upload feature to your app is very easy. You will learn in this tutorial to make you comfortable in building apps that can easily handle any file uploads.

* We will be covering the following topics:
* What is Multer?
* Project Setup
* Adding Multer
* Disk Storage

https://www.phpcodingstuff.com/blog/file-upload-with-multer-in-nodejs-and-express.html

![This is image title](https://www.phpcodingstuff.com/uploads/tutorial_images/File_Upload_with_Multer_in_Node_js_and_Express1.jpg "This is image title"

Adding Multer

`npm install multer --save`

const multer = require('multer');
const upload = multer({dest:'uploads/'}).single("demo_image";

The following code will go in app.js:

app.post("/image", (req, res) => {
   upload(req, res, (err) => {
    if(err) {
      res.status(400).send("Something went wrong!";
    }
    res.send(req.file);
  });
});

Original Source :https://www.phpcodingstuff.com/blog/file-upload-with-multer-in-nodejs-and-express.html