node.js : file upload via express and multer
Form-based File Upload in HTML https://tools.ietf.org/html/rfc1867 Express Fast, unopinionated, minimalist web framework for node. Multer Multer is a node.js middleware for handling multipart/form-data, which is primarily used for uploading files. It is written on top of busboy for maximum efficiency. NOTE: Multer will not process any form which is not multipart (multipart/form-data). Client Codes(index.html) <script type="text/javascript"> function upload(postUrl, fieldName, files) { var formData = new FormData(); formData.append(fieldName, files); var req = new XMLHttpRequest(); req.open("POST", postUrl); req.onload = function(event) { console.log(event.target.responseText); }; req.send(formData); } function onchange() { for (let i = 0; i < this.files.length; i++) { upload('/uploads', 'uploadfile', this.files[i]); } } window.onload = function () { var input = document.getElementById('file'); inpu