I needed a simple way to implement dragging and scroll wheel zooming on an HTML canvas, but I couldn't find a pure JS example. The most popular one uses an SVG node to convert coordinates, but I didn't like that so I created my own version.
Try it here: https://jsfiddle.net/balazsbotond/6n2uzjkq/30/
| /*------------------------ | |
| Libraries | |
| ------------------------*/ | |
| const axios = require("axios"); | |
| const fs = require("fs"); | |
| const FormData = require("form-data"); | |
| /*------------------------ | |
| Download the file. | |
| Good article on how to download a file and send with form data - https://maximorlov.com/send-a-file-with-axios-in-nodejs/ |