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How to use Headless method of launcher Package

Best Rod code snippet using launcher.Headless

launcher.go

Source:launcher.go

...31	managed    bool32	serviceURL string33}34// New returns the default arguments to start browser.35// Headless will be enabled by default.36// Leakless will be enabled by default.37// UserDataDir will use OS tmp dir by default, this folder will usually be cleaned up by the OS after reboot.38func New() *Launcher {39	dir := defaults.Dir40	if dir == "" {41		dir = filepath.Join(DefaultUserDataDirPrefix, utils.RandString(8))42	}43	defaultFlags := map[flags.Flag][]string{44		flags.Bin:      {defaults.Bin},45		flags.Leakless: nil,46		flags.UserDataDir: {dir},47		// use random port by default48		flags.RemoteDebuggingPort: {defaults.Port},49		// enable headless by default50		flags.Headless: nil,51		// to disable the init blank window52		"no-first-run":      nil,53		"no-startup-window": nil,54		// TODO: about the "site-per-process" see https://github.com/puppeteer/puppeteer/issues/254855		"disable-features": {"site-per-process", "TranslateUI"},56		"disable-background-networking":                      nil,57		"disable-background-timer-throttling":                nil,58		"disable-backgrounding-occluded-windows":             nil,59		"disable-breakpad":                                   nil,60		"disable-client-side-phishing-detection":             nil,61		"disable-component-extensions-with-background-pages": nil,62		"disable-default-apps":                               nil,63		"disable-dev-shm-usage":                              nil,64		"disable-hang-monitor":                               nil,65		"disable-ipc-flooding-protection":                    nil,66		"disable-popup-blocking":                             nil,67		"disable-prompt-on-repost":                           nil,68		"disable-renderer-backgrounding":                     nil,69		"disable-sync":                                       nil,70		"enable-automation":                                  nil,71		"enable-features":                                    {"NetworkService", "NetworkServiceInProcess"},72		"force-color-profile":                                {"srgb"},73		"metrics-recording-only":                             nil,74		"use-mock-keychain":                                  nil,75	}76	if defaults.Show {77		delete(defaultFlags, flags.Headless)78	}79	if defaults.Devtools {80		defaultFlags["auto-open-devtools-for-tabs"] = nil81	}82	if inContainer {83		defaultFlags[flags.NoSandbox] = nil84	}85	if defaults.Proxy != "" {86		defaultFlags[flags.ProxyServer] = []string{defaults.Proxy}87	}88	ctx, cancel := context.WithCancel(context.Background())89	return &Launcher{90		ctx:       ctx,91		ctxCancel: cancel,92		Flags:     defaultFlags,93		exit:      make(chan struct{}),94		browser:   NewBrowser(),95		parser:    NewURLParser(),96		logger:    ioutil.Discard,97	}98}99// NewUserMode is a preset to enable reusing current user data. Useful for automation of personal browser.100// If you see any error, it may because you can't launch debug port for existing browser, the solution is to101// completely close the running browser. Unfortunately, there's no API for rod to tell it automatically yet.102func NewUserMode() *Launcher {103	ctx, cancel := context.WithCancel(context.Background())104	bin, _ := LookPath()105	return &Launcher{106		ctx:       ctx,107		ctxCancel: cancel,108		Flags: map[flags.Flag][]string{109			flags.RemoteDebuggingPort: {"37712"},110			"no-startup-window":       nil,111			flags.Bin:                 {bin},112		},113		browser: NewBrowser(),114		exit:    make(chan struct{}),115		parser:  NewURLParser(),116		logger:  ioutil.Discard,117	}118}119// NewAppMode is a preset to run the browser like a native application.120func NewAppMode(u string) *Launcher {121	l := New()122	l.Set(flags.App, u).123		Set(flags.Env, "GOOGLE_API_KEY=no").124		Headless(false).125		Delete("no-startup-window").126		Delete("enable-automation")127	return l128}129// Context sets the context130func (l *Launcher) Context(ctx context.Context) *Launcher {131	ctx, cancel := context.WithCancel(ctx)132	l.ctx = ctx133	l.parser.Context(ctx)134	l.ctxCancel = cancel135	return l136}137// Set a command line argument to launch the browser.138func (l *Launcher) Set(name flags.Flag, values ...string) *Launcher {139	if strings.Contains(string(name), "=") {140		panic("flag name should not contain '='")141	}142	l.Flags[l.normalizeFlag(name)] = values143	return l144}145// Get flag's first value146func (l *Launcher) Get(name flags.Flag) string {147	if list, has := l.GetFlags(name); has {148		return list[0]149	}150	return ""151}152// Has flag or not153func (l *Launcher) Has(name flags.Flag) bool {154	_, has := l.GetFlags(name)155	return has156}157// GetFlags from settings158func (l *Launcher) GetFlags(name flags.Flag) ([]string, bool) {159	flag, has := l.Flags[l.normalizeFlag(name)]160	return flag, has161}162// Append values to the flag163func (l *Launcher) Append(name flags.Flag, values ...string) *Launcher {164	flags, has := l.GetFlags(name)165	if !has {166		flags = []string{}167	}168	return l.Set(name, append(flags, values...)...)169}170// Delete a flag171func (l *Launcher) Delete(name flags.Flag) *Launcher {172	delete(l.Flags, l.normalizeFlag(name))173	return l174}175// Bin of the browser binary path to launch, if the path is not empty the auto download will be disabled176func (l *Launcher) Bin(path string) *Launcher {177	return l.Set(flags.Bin, path)178}179// Revision of the browser to auto download180func (l *Launcher) Revision(rev int) *Launcher {181	l.browser.Revision = rev182	return l183}184// Headless switch. Whether to run browser in headless mode. A mode without visible UI.185func (l *Launcher) Headless(enable bool) *Launcher {186	if enable {187		return l.Set(flags.Headless)188	}189	return l.Delete(flags.Headless)190}191// NoSandbox switch. Whether to run browser in no-sandbox mode.192// Linux users may face "running as root without --no-sandbox is not supported" in some Linux/Chrome combinations. This function helps switch mode easily.193// Be aware disabling sandbox is not trivial. Use at your own risk.194// Related doc: https://bugs.chromium.org/p/chromium/issues/detail?id=638180195func (l *Launcher) NoSandbox(enable bool) *Launcher {196	if enable {197		return l.Set(flags.NoSandbox)198	}199	return l.Delete(flags.NoSandbox)200}201// XVFB enables to run browser in by XVFB. Useful when you want to run headful mode on linux.202func (l *Launcher) XVFB(args ...string) *Launcher {203	return l.Set(flags.XVFB, args...)...

browser.go

Source:browser.go

...11	isInit, isClosed uint3212	once             *sync.Once13	launcher         *launcher.Launcher14	browser          *rod.Browser15	isHeadless     bool16	withDevTools   bool17	withTrace      bool18	slowMotionTime time.Duration19	header map[string]string20}21type Tab struct {22	launcher *launcher.Launcher23	browser  *rod.Browser24	page     *rod.Page25	cancelFunc func()26}27func New() (c *Browser) {28	return &Browser{29		once: &sync.Once{},30		isHeadless: true,31		header:     map[string]string{},32	}33}34func (b *Browser) Headless(isHeadless bool) {35	b.isHeadless = isHeadless36}37func (b *Browser) WithDevTools(withDevTools bool) {38	b.withDevTools = withDevTools39}40func (b *Browser) WithTrace(withTrace bool) {41	b.withTrace = withTrace42}43func (b *Browser) WithSlowMotion(duration time.Duration) {44	b.slowMotionTime = duration45}46func (b *Browser) Close() {47	if atomic.LoadUint32(&b.isInit) == 1 && atomic.LoadUint32(&b.isClosed) == 0 {48		b.browser.MustClose()49		b.launcher.Cleanup()50		atomic.StoreUint32(&b.isClosed, 1)51	}52}53func (b *Browser) Run(cb func(tab *Tab) (err error)) (err error) {54	b.once.Do(func() {55		b.launcher = launcher.New().56			Headless(b.isHeadless).57			Devtools(b.withDevTools)58		var controlUrl string59		controlUrl, err = b.launcher.Launch()60		if err != nil {61			return62		}63		b.browser = rod.New().64			ControlURL(controlUrl).65			Trace(b.withTrace)66		if b.slowMotionTime > 0 {67			b.browser = b.browser.SlowMotion(b.slowMotionTime)68		}69		b.browser = b.browser.MustConnect()70	})...

main.go

Source:main.go

...13	//         Delete("--headless").14	//         Bin(path).MustLaunch()15	u := launcher.New().16		UserDataDir("path").17		Headless(true).18		Headless(false).19		Bin(path).MustLaunch()20	page := rod.New().ControlURL(u).MustConnect().MustPage("https://example.com")21	page.MustWaitLoad().MustScreenshot("5.png")22}...

Headless

Using AI Code Generation

1import (2func main() {3	c, err := cdp.Launch(cdp.Headless())4	if err != nil {5		log.Fatal(err)6	}7	defer c.Shutdown()8	cc, err := rpcc.DialContext(c.Context, c.RemoteDebuggingPort)9	if err != nil {10		log.Fatal(err)11	}12	defer cc.Close()13	if err != nil {14		log.Fatal(err)15	}16	p := page.New(cc)17	if _, err := p.Enable(); err != nil {18		log.Fatal(err)19	}20	_, err = p.DOMContentEventFired(cdp.WithTargetID(t.ID))21	if err != nil {22		log.Fatal(err)23	}24	title, err := p.GetTitle(cdp.WithTargetID(t.ID))25	if err != nil {26		log.Fatal(err)27	}28	log.Printf("title: %s29	if err != nil {30		log.Fatal(err)31	}32	_, err = p.LoadEventFired(cdp.WithTargetID(t.ID))33	if err != nil {34		log.Fatal(err)35	}36	title, err = p.GetTitle(cdp.WithTargetID(t.ID))37	if err != nil {38		log.Fatal(err)39	}40	log.Printf("title: %s41}

Headless

Using AI Code Generation

1import (2func main() {3	opts := []selenium.ServiceOption{4	}5	selenium.SetDebug(true)6	service, err := selenium.NewChromeDriverService("/home/ashish/Downloads/chromedriver", 9515, opts...)7	if err != nil {8		log.Fatal(err)9	}10	defer service.Stop()11	caps := selenium.Capabilities{"browserName": "chrome"}12	caps.AddChrome(chrome.Capabilities{13		Args: []string{14		},15	})16	wd, err := selenium.NewRemote(caps, "")17	if err != nil {18		log.Fatal(err)19	}20	defer wd.Quit()21		log.Fatal(err)22	}23	elem, err := wd.FindElement(selenium.ByCSSSelector, "#lst-ib")24	if err != nil {25		log.Fatal(err)26	}27	if err := elem.SendKeys("selenium"); err != nil {28		log.Fatal(err)29	}30	if err := elem.Submit(); err != nil {31		log.Fatal(err)32	}33	if err := wd.WaitWithTimeout(selenium.Condition(func(wd selenium.WebDriver) (bool, error) {34		_, err := wd.FindElement(selenium.ByCSSSelector, "h3.r")35	}), 10

Headless

Using AI Code Generation

1import "fmt"2import "github.com/tebeka/selenium"3import "github.com/tebeka/selenium/chrome"4import "time"5func main() {6    opts := []selenium.ServiceOption{}7    service, err := selenium.NewChromeDriverService("chromedriver", 9515, opts...)8    if err != nil {9        fmt.Println(err)10    }11    defer service.Stop()12    caps := selenium.Capabilities{"browserName": "chrome"}13    caps.AddChrome(chrome.Capabilities{14        Args: []string{15        },16    })17    if err != nil {18        fmt.Println(err)19    }20    defer wd.Quit()21        fmt.Println(err)22    }23    elem, err := wd.FindElement(selenium.ByCSSSelector, "#code")24    if err != nil {25        fmt.Println(err)26    }27    if err := elem.Clear(); err != nil {28        fmt.Println(err)29    }30    if err := elem.SendKeys("package main\n\nimport \"fmt\"\n\nfunc main() {\n\tfmt.Println(\"Hello, playground\")\n}"); err != nil {31        fmt.Println(err)32    }33    btn, err := wd.FindElement(selenium.ByCSSSelector, "#run")34    if err != nil {35        fmt.Println(err)36    }37    if err := btn.Click(); err != nil {38        fmt.Println(err)39    }40    output, err := wd.FindElement(selenium.ByCSSSelector, "#output")41    if err != nil {42        fmt.Println(err)43    }44    text, err := output.Text()45    if err != nil {46        fmt.Println(err)47    }48    fmt.Println(text)

Headless

Using AI Code Generation

1import (2func main() {3	const (4	opts := []selenium.ServiceOption{5	}6	selenium.SetDebug(true)7	service, err := selenium.NewChromeDriverService(seleniumPath, port, opts...)8	if err != nil {9		log.Fatal(err)10	}11	defer service.Stop()12	caps := selenium.Capabilities{"browserName": "chrome"}13	caps.AddChrome(chrome.Capabilities{14		Args: []string{15		},16	})17	if err != nil {18		log.Fatal(err)19	}20	defer wd.Quit()21		log.Fatal(err)22	}23	if err := wd.WaitWithTimeout(selenium.Condition("document.readyState == 'complete'"), 10*time.Second); err != nil {24		log.Fatal(err)25	}26	elem, err := wd.FindElement(selenium.ByID, "lst-ib")27	if err != nil {28		log.Fatal(err)29	}30	if err := elem.SendKeys("selenium"); err != nil {31		log.Fatal(err)32	}33	if err := elem.Submit(); err != nil {34		log.Fatal(err)35	}

Headless

Using AI Code Generation

1import (2func main() {3	driver := agouti.ChromeDriver(4		agouti.ChromeOptions("args", []string{5		}),6	if err := driver.Start(); err != nil {7		panic(err)8	}9	page, err := driver.NewPage()10	if err != nil {11		panic(err)12	}13		panic(err)14	}15	element, err := page.Find("#hplogo").Element()16	if err != nil {17		panic(err)18	}19	attribute, err := element.Attribute("alt")20	if err != nil {21		panic(err)22	}23	fmt.Println(attribute)24	if err := driver.Stop(); err != nil {25		panic(err)26	}27}28import (29func main() {30	driver := agouti.ChromeDriver(31		agouti.ChromeOptions("args", []string{32		}),33	if err := driver.Start(); err != nil {34		panic(err)35	}36	page, err := driver.NewPage()37	if err != nil {38		panic(err)39	}40		panic(err)41	}42	element, err := page.Find("#hplogo").Element()43	if err != nil {44		panic(err)45	}46	attribute, err := element.Attribute("alt")47	if err != nil {48		panic(err)49	}50	fmt.Println(attribute)51	if err := driver.Stop(); err != nil {52		panic(err)53	}54}

Headless

Using AI Code Generation

1import (2func main() {3	browser, err := launcher.NewBrowser(4		launcher.Flag("headless", true),5		launcher.Flag("disable-gpu", true),6		launcher.Flag("no-sandbox", true),7		launcher.Flag("disable-dev-shm-usage", true),8	if err != nil {9		panic(err)10	}11	c, err := cdp.New(browser)12	if err != nil {13		panic(err)14	}15	tasks := cdp.Tasks{16		cdp.WaitVisible(`#hplogo`, cdp.ByID),17	}18	if err := c.Run(tasks); err != nil {19		panic(err)20	}21		WithClip(&cdp.Viewport{22		Do(c)23	if err != nil {24		panic(err)25	}26	if err := cdp.WriteImage("screenshot.png", buf); err != nil {27		panic(err)28	}29	if err := browser.Shutdown(); err != nil {30		panic(err)31	}32	if err := browser.Wait(); err != nil {33		panic(err)34	}35	fmt.Println("Done")36}37import (

Headless

Using AI Code Generation

1import "github.com/raff/godet"2func main() {3	launcher := godet.NewLauncher()4	launcher.Headless(true)5	launcher.Start()6	defer launcher.Kill()7	remote, _ := launcher.NewRemote()8	defer remote.Close()9	remote.WaitDocumentReady()10	title, _ := remote.GetTitle()11	println(title)12	content, _ := remote.GetPageContent()13	println(content)14}15import "github.com/raff/godet"16func main() {17	launcher := godet.NewLauncher()18	launcher.Headless(true)19	launcher.Start()20	defer launcher.Kill()21	remote, _ := launcher.NewRemote()22	defer remote.Close()23	remote.WaitDocumentReady()24	title, _ := remote.GetTitle()25	println(title)26	content, _ := remote.GetPageContent()27	println(content)28}29import "github.com/raff/godet"30func main() {31	launcher := godet.NewLauncher()32	launcher.Headless(true)33	launcher.Start()34	defer launcher.Kill()35	remote, _ := launcher.NewRemote()36	defer remote.Close()37	remote.WaitDocumentReady()38	title, _ := remote.GetTitle()39	println(title)40	content, _ := remote.GetPageContent()41	println(content)42}43import "github.com/raff/godet"44func main() {

Headless

Using AI Code Generation

1import (2func main() {3 str, err := req.String()4 if err != nil {5 fmt.Println(err)6 }7 fmt.Println(str)8}

Headless

Using AI Code Generation

1import (2func main() {3	launch := godet.NewLauncher()4	launch.ExecPath = "C:/Program Files (x86)/Google/Chrome/Application/chrome.exe"5	launch.Start()6	remote, _ := godet.Connect(launch)7	title, _ := remote.PageTitle()8	log.Println(title)9	launch.Kill()10}

Headless

Using AI Code Generation

1import (2func main() {3	launcher := launcher.NewChromeLauncher()4	err := launcher.Start()5	if err != nil {6		panic(err)7	}8	fmt.Println(launcher.GetWsURL())9}

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