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How to use Devtools method of launcher Package

Best Rod code snippet using launcher.Devtools

defaults.go

Source:defaults.go

...23var Monitor string24// Show is the default of launcher.Launcher.Headless .25// Option name is "show".26var Show bool27// Devtools is the default of launcher.Launcher.Devtools .28// Option name is "devtools".29var Devtools bool30// Dir is the default of launcher.Launcher.UserDataDir .31// Option name is "dir".32var Dir string33// Port is the default of launcher.Launcher.RemoteDebuggingPort .34// Option name is "port".35var Port string36// Bin is the default of launcher.Launcher.Bin .37// Option name is "bin".38var Bin string39// Proxy is the default of launcher.Launcher.Proxy40// Option name is "proxy".41var Proxy string42// LockPort is the default of launcher.Browser.LockPort43// Option name is "lock".44var LockPort int45// URL is the default websocket url for remote control a browser.46// Option name is "url".47var URL string48// CDP is the default of cdp.Client.Logger49// Option name is "cdp".50var CDP utils.Logger51// Reset all flags to their init values.52func Reset() {53	Trace = false54	Slow = 055	Monitor = ""56	Show = false57	Devtools = false58	Dir = ""59	Port = "0"60	Bin = ""61	Proxy = ""62	LockPort = 297863	URL = ""64	CDP = utils.LoggerQuiet65}66var envParsers = map[string]func(string){67	"trace": func(string) {68		Trace = true69	},70	"slow": func(v string) {71		var err error72		Slow, err = time.ParseDuration(v)73		if err != nil {74			msg := "invalid value for \"slow\": " + err.Error() +75				" (learn format from https://golang.org/pkg/time/#ParseDuration)"76			panic(msg)77		}78	},79	"monitor": func(v string) {80		Monitor = ":0"81		if v != "" {82			Monitor = v83		}84	},85	"show": func(string) {86		Show = true87	},88	"devtools": func(string) {89		Devtools = true90	},91	"dir": func(v string) {92		Dir = v93	},94	"port": func(v string) {95		Port = v96	},97	"bin": func(v string) {98		Bin = v99	},100	"proxy": func(v string) {101		Proxy = v102	},103	"lock": func(v string) {...

Devtools

Using AI Code Generation

1import "github.com/chromedp/chromedp"2func main() {3    ctx, cancel := chromedp.NewContext(context.Background())4    defer cancel()5    if err != nil {6        log.Fatal(err)7    }8    if err := ioutil.WriteFile("screenshot.png", buf, 0644); err != nil {9        log.Fatal(err)10    }11}12func screenshot(urlstr, sel string, res *[]byte) chromedp.Tasks {13    return chromedp.Tasks{14        chromedp.Navigate(urlstr),15        chromedp.WaitReady(sel),16        chromedp.Screenshot(sel, res, chromedp.NodeVisible, chromedp.ByID),17    }18}19import (20func main() {21    ctx, cancel := chromedp.NewContext(context.Background())22    defer cancel()23    if err != nil {24        log.Fatal(err)25    }26    if err := ioutil.WriteFile("screenshot.png", buf, 0644); err != nil {27        log.Fatal(err)28    }29}30func screenshot(urlstr, sel string, res *[]byte) chromedp.Tasks {31    return chromedp.Tasks{32        chromedp.Navigate(urlstr),33        chromedp.WaitReady(sel),34        chromedp.Screenshot(sel, res, chromedp.NodeVisible, chromedp.ByID),35    }36}37import (

Devtools

Using AI Code Generation

1import (2func main() {3	ctxt, cancel := context.WithCancel(context.Background())4	defer cancel()5	c, err := chromedp.New(ctxt, chromedp.WithLogf(log.Printf))6	if err != nil {7		log.Fatal(err)8	}9	err = c.Run(ctxt, chromedp.Tasks{10		chromedp.WaitVisible(`#hplogo`, chromedp.ByID),11		chromedp.Click(`#hplogo`, chromedp.ByID),12		chromedp.SendKeys(`#hplogo`, "hello world", chromedp.ByID),13		chromedp.Sleep(5 * time.Second),14	})15	if err != nil {16		log.Fatal(err)17	}18	fmt.Printf("Result: %s", res)19}20import (21func main() {22	ctxt, cancel := context.WithCancel(context.Background())23	defer cancel()24	c, err := chromedp.New(ctxt, chromedp.WithLogf(log.Printf))25	if err != nil {26		log.Fatal(err)27	}28	err = c.Run(ctxt, chromedp.Tasks{29		chromedp.WaitVisible(`#hplogo`, chromedp.ByID),30		chromedp.Click(`#hplogo`, chromedp.ByID),31		chromedp.SendKeys(`#hplogo`, "hello world", chromedp.ByID),32		chromedp.Sleep(5 * time.Second),33	})34	if err != nil {35		log.Fatal(err)36	}37	fmt.Printf("Result: %s", res)38}

Devtools

Using AI Code Generation

1import (2func main() {3	ctxt, cancel := context.WithCancel(context.Background())4	defer cancel()5	c, err := chromedp.New(ctxt, chromedp.WithRunnerOptions(6		runner.Flag("headless", true),7		runner.Flag("disable-gpu", true),8		runner.Flag("remote-debugging-port", "9222"),9		runner.Flag("no-first-run", true),10		runner.Flag("no-default-browser-check", true),11		runner.Flag("disable-default-apps", true),12		runner.Flag("disable-extensions", true),13		runner.Flag("disable-notifications", true),14		runner.Flag("disable-popup-blocking", true),15		runner.Flag("disable-translate", true),16		runner.Flag("disable-sync", true),17		runner.Flag("disable-background-networking", true),18		runner.Flag("disable-background-timer-throttling", true),19		runner.Flag("disable-client-side-phishing-detection", true),20		runner.Flag("disable-default-apps", true),21		runner.Flag("disable-hang-monitor", true),22		runner.Flag("disable-prompt-on-repost", true),23		runner.Flag("disable-setuid-sandbox", true),24		runner.Flag("disable-web-resources", true),25		runner.Flag("disable-sync", true),26		runner.Flag("disable-translate", true),27		runner.Flag("metrics-recording-only", true),28		runner.Flag("mute-audio", true),29		runner.Flag("no-first-run", true),30		runner.Flag("safebrowsing-disable-auto-update", true),31		runner.Flag("ignore-certificate-errors", true),32		runner.Flag("ignore-ssl-errors", true),33		runner.Flag("disable-gpu", true),34		runner.Flag("disable-dev-shm-usage", true),35		runner.Flag("disable-software-rasterizer", true),36		runner.Flag("hide-scrollbars", true),37		runner.Flag("mute-audio", true),38		runner.Flag("no-sandbox", true),

Devtools

Using AI Code Generation

1import (2func main() {3	ctxt, cancel := chromedp.NewContext(4		context.Background(),5		chromedp.WithLogf(log.Printf),6	defer cancel()7	err := chromedp.Run(ctxt,8		chromedp.WaitVisible(`#hplogo`, chromedp.ByID),9		chromedp.Text(`#hplogo`, &res, chromedp.ByID),10	if err != nil {11		log.Fatal(err)12	}13	fmt.Printf("res: %s14}15import (16func main() {17	ctxt, cancel := chromedp.NewContext(18		context.Background(),19		chromedp.WithLogf(log.Printf),20	defer cancel()21	err := chromedp.Run(ctxt,22		chromedp.WaitVisible(`#hplogo`, chromedp.ByID),23		chromedp.Text(`#hplogo`, &res, chromedp.ByID),24	if err != nil {25		log.Fatal(err)26	}27	fmt.Printf("res: %s28}29import (

Devtools

Using AI Code Generation

1import (2func main() {3    ctx, cancel := chromedp.NewContext(4        context.Background(),5        chromedp.WithLogf(log.Printf),6    defer cancel()7    err := chromedp.Run(ctx,8        chromedp.WaitVisible(`#main`, chromedp.ByID),9        chromedp.Click(`#main`, chromedp.ByID),10        chromedp.Value(`#textarea`, &res, chromedp.ByID),11    if err != nil {12        log.Fatal(err)13    }14    log.Printf("textarea value: %s", res)15}16import (17func main() {18    ctx, cancel := chromedp.NewContext(19        context.Background(),20        chromedp.WithLogf(log.Printf),21    defer cancel()22    err := chromedp.Run(ctx,23        chromedp.WaitVisible(`#main`, chromedp.ByID),24        chromedp.Click(`#main`, chromedp.ByID),25        chromedp.Value(`#textarea`, &res, chromedp.ByID),26    if err != nil {27        log.Fatal(err)28    }29    log.Printf("textarea value: %s

Devtools

Using AI Code Generation

1import (2func main() {3	ctxt, cancel := context.WithCancel(context.Background())4	defer cancel()5	if err != nil {6		log.Fatal(err)7	}8	defer chrome.Shutdown(ctxt)9	err = chrome.Run(ctxt, chromedp.Tasks{10		chromedp.WaitVisible(`#hplogo`, chromedp.ByID),11		chromedp.OuterHTML(`html`, &res),12	})13	if err != nil {14		log.Fatal(err)15	}16	if err := os.WriteFile("out.html", []byte(res), 0644); err != nil {17		log.Fatal(err)18	}19	fmt.Println("Wrote out.html")20}21import (22func main() {23	ctxt, cancel := context.WithCancel(context.Background())24	defer cancel()25	if err != nil {26		log.Fatal(err)27	}28	defer chrome.Shutdown(ctxt)29	err = chrome.Run(ctxt, chromedp.Tasks{

Devtools

Using AI Code Generation

1import (2func main() {3	ctx, cancel := chromedp.NewContext(4		context.Background(),5		chromedp.WithRunnerOptions(6			runner.Flag("headless", false),7			runner.Flag("disable-gpu", true),8			runner.Flag("no-sandbox", true),9			runner.Flag("disable-dev-shm-usage", true),10			runner.Flag("disable-extensions", true),11			runner.Flag("disable-default-apps", true),12			runner.Flag("disable-features=VizDisplayCompositor", true),13			runner.Flag("enable-features=NetworkService,NetworkServiceInProcess", true),14			runner.Flag("remote-debugging-port", "9222"),15			runner.Flag("remote-debugging-address", "

Devtools

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("cmd", "/c", "start chrome --remote-debugging-port=9222")4	cmd.Start()5	time.Sleep(5 * time.Second)6}7import (8func main() {9	cmd := exec.Command("cmd", "/c", "start chrome --remote-debugging-port=9222")10	cmd.Start()11	time.Sleep(5 * time.Second)12	cmd.Process.Kill()13}14import (15func main() {16	cmd := exec.Command("cmd", "/c", "start chrome --remote-debugging-port=9222")17	cmd.Start()18	time.Sleep(5 * time.Second)19	cmd.Process.Kill()20}21import (22func main() {

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