const fs = require('fs') const path = require('path') const out = fs.createWriteStream(path.join(__dirname, "..")+ '/image-exception.png'); const { createCanvas, Image } = require('../export'); const canvas = createCanvas(400, 400); const ctx = canvas.getContext('2d'); const img = new Image() const img2 = new Image() img.onerror = err => { console.log(err) } img.onload = () => { } img.src = 'https://192.168.1.1:80/test.png' img2.onload = () => { ctx.drawImage(img, 0, 0) console.log("Image onload success!!!") var stream = canvas.createPNGStream(); stream.pipe(out); } img2.onerror = err => { console.log(err) } img2.src = path.join(__dirname, 'images', 'imageNotExist.png')