This code snippet downloads a single image from an Instagram URL using Puppeteer and Cheerio

IG-Image-Downloader

const download = require('image-downloader')
const puppeteer = require('puppeteer')
const $ = require('cheerio');

const saveImage = (urlVar, callback) => {
    puppeteer
        .launch()
        .then(function(browser) {
            return browser.newPage();
        })
        .then(function(page) {
            return page.goto(urlVar).then(function() { //Replace urlVar with variable of the IG post you want to download
                return page.content();
            });
        })
        .then(function(html) {
            var images = $('img', html)[1].attribs.srcset //There are multiple img tags on a page, [1] is the image you want.
            var list = images.split(',') //The img tag has a source set so this parses it and finds a link that works
            var temp = list[2]
            var downloadImage = temp.split(" ")

            const options = {
                url: downloadImage[0],
                dest: './downloads/'
            }

            download.image(options)
            .then(({ filename, image }) => {
                return callback(console.log('Saved to', filename))
            })
            .catch(err => {
                console.log(err);
            })
        })
        .catch(function(err) {
            console.log(err)
        });
}

exports.saveImage = saveImage