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Store Images from Forms in NodeJS

In app.js import multer
Import uuidv4 in case you want to generate uniqu universal id to name the images.
const multer = require('multer');
const uuidv4 = require('uuid/v4');

Define fileStorage and fileFilter
const fileStorage = multer.diskStorage({
destination: (req, file, cb) => {
cb(null, 'images'); // 'images' is the storage folders
},
filename: (req, file, cb) => {
cb(null, uuidv4());
}
});

const fileFilter = (req, file, cb) => { // to save only image and not other files
if ((file.mimetype === 'image/png') ||
(file.mimetype === 'image/jpg') ||
(file.mimetype === 'image/jpeg')) {
cb(null, true);
} else {
cb(null, false);
}
};

Middleware to store the image
app.use(multer({ storage: fileStorage, fileFilter: fileFilter }).single('image'));

In controller, use req.file to access the image file from the form. Save it's path to imageUrl in database, to access while displaying data.

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