Chromdp to use iframes

googlecdp.go

package main

import (
	"context"
	"io/ioutil"
	"log"
	"time"
	"fmt"
	
	cdp "github.com/knq/chromedp"
)


func main() {
	var err error
//	var js string
	
/*	js = `function {
   var iframe = document.getElementById("webyclip-widget-3");
   var innerDoc = iframe.contentDocument || iframe.contentWindow.document;
   document.getElementById("demo").innerHTML = innerDoc.body.innerHTML;
}`;*/
		
	// create context
	ctxt, cancel := context.WithCancel(context.Background())
	defer cancel()

	// create chrome instance
	c, err := cdp.New(ctxt, cdp.WithLog(log.Printf))
	if err != nil {
		log.Fatal(err)
	}

	// run task list
	url := "https://www.tokopedia.com/chocoapple/ready-stock-bnib-iphone-128gb-7-plus-jet-black-garansi-apple-1-tahun-10?src=topads";
	var buf []byte
	m := make(map[string]string)
	var html string
	//	err = c.Run(ctxt, screenshot(url, `#sliders_container`, &buf, &m))
	err = c.Run(ctxt, screenshot(url, `#webyclip-widget-3`, &buf, &html, &m))
	if err != nil {
		log.Fatal(err)
	}

	// shutdown chrome
	err = c.Shutdown(ctxt)
	if err != nil {
		log.Fatal(err)
	}

	// wait for chrome to finish
	err = c.Wait()
	if err != nil {
		log.Fatal(err)
	}

	err = ioutil.WriteFile("/home/yogesh/GoCodes/WebCrawler/webyclip.png", buf, 0644)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println("\n\nThe outerHTML is: ", html)
	fmt.Println("\n\nThe Attributes are: ", m)
//	fmt.Println("\nThe Object window keys: ", &buf)
}

//func screenshot(urlstr, sel string, res *[]byte, m *map[string]string) cdp.Tasks {
func screenshot(urlstr, sel string, res *[]byte, html *string, m *map[string]string) cdp.Tasks {
	return cdp.Tasks{
		cdp.Navigate(urlstr),
		cdp.Sleep(5 * time.Second),
		cdp.WaitVisible(sel, cdp.ByID),
		//cdp.Screenshot(sel, res, cdp.NodeVisible, cdp.ByID),
//		cdp.CaptureScreenshot(res),
//		cdp.InnerHTML(sel, html, cdp.ByID),
		//		cdp.Evaluate(js, res, cdp.ByID),
//		cdp.Evaluate(`Object.keys(window);`, res),
		cdp.OuterHTML(sel, html, cdp.ByID),
		cdp.Attributes(sel, m, cdp.ByID),
//		cdp.Focus(sel,cdp.ByID),
		cdp.CaptureScreenshot(res),
		
	}
}