How to use Try method of rod Package

Best Rod code snippet using rod.Try

browser_test.go

Source:browser_test.go Github

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...182 g.Panic(func() {183 p.MustNavigate(s.URL())184 })185}186func TestTestTry(t *testing.T) {187 g := setup(t)188 g.Nil(rod.Try(func() {}))189 err := rod.Try(func() { panic(1) })190 var errVal *rod.ErrTry191 g.True(errors.As(err, &errVal))192 g.Is(err, &rod.ErrTry{})193 g.Eq(errVal.Unwrap().Error(), "1")194 g.Eq(1, errVal.Value)195 g.Has(errVal.Error(), "error value: 1\ngoroutine")196 errVal = rod.Try(func() { panic(errors.New("t")) }).(*rod.ErrTry)197 g.Eq(errVal.Unwrap().Error(), "t")198}199func TestBrowserOthers(t *testing.T) {200 g := setup(t)201 g.browser.Timeout(time.Second).CancelTimeout().MustGetCookies()202}203func TestBinarySize(t *testing.T) {204 g := setup(t)205 if runtime.GOOS == "windows" || utils.InContainer {206 g.SkipNow()207 }208 cmd := exec.Command("go", "build",209 "-trimpath",210 "-ldflags", "-w -s",...

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rod-helper.go

Source:rod-helper.go Github

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...17 * @return error18 */19func NewBrowser(httpProxyURL string) (*rod.Browser, error) {20 var browser *rod.Browser21 err := rod.Try(func() {22 u := launcher.New().23 Proxy(httpProxyURL).24 MustLaunch()25 browser = rod.New().ControlURL(u).MustConnect()26 })27 if err != nil {28 return nil, err29 }30 return browser, nil31}32/**33 * @Description: 访问目标 Url，返回 page，只是这个 page 有效，如果再次出发其他的事件无效34 * @param desURL 目标 Url35 * @param httpProxyURL http://127.0.0.1:1080936 * @param timeOut 超时时间37 * @param maxRetryTimes 当是非超时 err 的时候，最多可以重试几次38 * @return *rod.Page39 * @return error40 */41func NewBrowserFromDocker(httpProxyURL, remoteDockerURL string) (*rod.Browser, error) {42 var browser *rod.Browser43 err := rod.Try(func() {44 l := launcher.MustNewRemote(remoteDockerURL)45 u := l.Proxy(httpProxyURL).MustLaunch()46 l.Headless(false).XVFB()47 browser = rod.New().Client(l.Client()).ControlURL(u).MustConnect()48 })49 if err != nil {50 return nil, err51 }52 return browser, nil53}54func NewPage(browser *rod.Browser) (*rod.Page, error) {55 page, err := browser.Page(proto.TargetCreateTarget{URL: ""})56 if err != nil {57 return nil, err58 }59 return page, err60}61func NewPageNavigate(browser *rod.Browser, desURL string, timeOut time.Duration, maxRetryTimes int) (*rod.Page, error) {62 page, err := NewPage(browser)63 if err != nil {64 return nil, err65 }66 page = page.Timeout(timeOut)67 nowRetryTimes := 068 for nowRetryTimes <= maxRetryTimes {69 err = rod.Try(func() {70 wait := page.MustWaitNavigation()71 page.MustNavigate(desURL)72 wait()73 })74 if errors.Is(err, context.DeadlineExceeded) {75 // 超时76 return nil, err77 } else if err == nil {78 // 没有问题79 return page, nil80 }81 }82 return nil, err83}84func PageNavigate(page *rod.Page, desURL string, timeOut time.Duration, maxRetryTimes int) (*rod.Page, error) {85 var err error86 page = page.Timeout(timeOut)87 nowRetryTimes := 088 for nowRetryTimes <= maxRetryTimes {89 err = rod.Try(func() {90 wait := page.MustWaitNavigation()91 page.MustNavigate(desURL)92 wait()93 })94 if errors.Is(err, context.DeadlineExceeded) {95 // 超时96 return nil, err97 } else if err == nil {98 // 没有问题99 return page, nil100 }101 }102 return nil, err103}104/**105 * @Description: 访问目标 Url，返回 page，只是这个 page 有效，如果再次出发其他的事件无效106 * @param desURL 目标 Url107 * @param httpProxyURL http://127.0.0.1:10809108 * @param timeOut 超时时间109 * @param maxRetryTimes 当是非超时 err 的时候，最多可以重试几次110 * @return *rod.Page111 * @return error112 */113func NewBrowserLoadPage(desURL string, httpProxyURL string, timeOut time.Duration, maxRetryTimes int) (*rod.Page, error) {114 browser, err := NewBrowser(httpProxyURL)115 if err != nil {116 return nil, err117 }118 page, err := browser.Page(proto.TargetCreateTarget{URL: ""})119 if err != nil {120 return nil, err121 }122 page = page.Timeout(timeOut)123 nowRetryTimes := 0124 for nowRetryTimes <= maxRetryTimes {125 err = rod.Try(func() {126 wait := page.MustWaitNavigation()127 page.MustNavigate(desURL)128 wait()129 })130 if errors.Is(err, context.DeadlineExceeded) {131 // 超时132 return nil, err133 } else if err == nil {134 // 没有问题135 return page, nil136 }137 }138 return nil, err139}140/**141 * @Description: 访问目标 Url，返回 page，只是这个 page 有效，如果再次出发其他的事件无效142 * @param desURL 目标 Url143 * @param httpProxyURL http://127.0.0.1:10809144 * @param timeOut 超时时间145 * @param maxRetryTimes 当是非超时 err 的时候，最多可以重试几次146 * @return *rod.Page147 * @return error148 */149func NewBrowserLoadPageFromRemoteDocker(desURL string, httpProxyURL, remoteDockerURL string, timeOut time.Duration, maxRetryTimes int) (*rod.Page, error) {150 browser, err := NewBrowserFromDocker(httpProxyURL, remoteDockerURL)151 if err != nil {152 return nil, err153 }154 page, err := browser.Page(proto.TargetCreateTarget{URL: ""})155 if err != nil {156 return nil, err157 }158 page = page.Timeout(timeOut)159 nowRetryTimes := 0160 for nowRetryTimes <= maxRetryTimes {161 err = rod.Try(func() {162 wait := page.MustWaitNavigation()163 page.MustNavigate(desURL)164 wait()165 })166 if errors.Is(err, context.DeadlineExceeded) {167 // 超时168 return nil, err169 } else if err == nil {170 // 没有问题171 break172 }173 }174 return page, nil175}176/**177 * @Description: 访问目标 Url，返回 page，只是这个 page 有效，如果再次出发其他的事件无效178 * @param desURL 目标 Url179 * @param httpProxyURL http://127.0.0.1:10809180 * @param timeOut 超时时间181 * @param maxRetryTimes 当是非超时 err 的时候，最多可以重试几次182 * @return *rod.Page183 * @return error184 */185func NewBrowserLoadPageByHijackRequests(desURL string, httpProxyURL string, timeOut time.Duration, maxRetryTimes int) (*rod.Page, error) {186 var page *rod.Page187 var err error188 // 创建一个 page189 browser := rod.New()190 err = browser.Connect()191 if err != nil {192 return nil, err193 }194 page, err = browser.Page(proto.TargetCreateTarget{URL: ""})195 if err != nil {196 return nil, err197 }198 page = page.Timeout(timeOut)199 // 设置代理200 router := page.HijackRequests()201 defer router.Stop()202 err = rod.Try(func() {203 router.MustAdd("*", func(ctx *rod.Hijack) {204 px, _ := url.Parse(httpProxyURL)205 ctx.LoadResponse(&http.Client{206 Transport: &http.Transport{207 Proxy: http.ProxyURL(px),208 TLSClientConfig: &tls.Config{InsecureSkipVerify: true},209 },210 Timeout: timeOut,211 }, true)212 })213 })214 if err != nil {215 return nil ,err216 }217 go router.Run()218 nowRetryTimes := 0219 for nowRetryTimes <= maxRetryTimes {220 err = rod.Try(func() {221 page.MustNavigate(desURL).MustWaitLoad()222 })223 if errors.Is(err, context.DeadlineExceeded) {224 // 超时225 return nil, err226 } else if err == nil {227 // 没有问题228 break229 }230 time.Sleep(time.Second)231 nowRetryTimes++232 }233 return page, nil234}...

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scraper_rod.go

Source:scraper_rod.go Github

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...31func (s *RodScraper) SetDepth(depth int) {32 s.depth = depth33}34func (s *RodScraper) Init() error {35 return rod.Try(func() {36 path, _ := launcher.LookPath()37 u := launcher.New().Bin(path).NoSandbox(true).MustLaunch()38 s.lock = &sync.RWMutex{}39 s.robotsMap = make(map[string]*robotstxt.RobotsData)40 s.protoUserAgent = &proto.NetworkSetUserAgentOverride{UserAgent: s.UserAgent}41 s.Browser = rod.42 New().43 ControlURL(u).44 MustConnect().45 MustIgnoreCertErrors(true)46 })47}48func (s *RodScraper) Scrape(paramURL string) (*ScrapedData, error) {49 scraped := &ScrapedData{}50 parsedURL, err := url.Parse(paramURL)51 if err != nil {52 return scraped, err53 }54 if s.depth > 0 {55 if err := s.checkRobots(parsedURL); err != nil {56 return scraped, err57 }58 }59 var e proto.NetworkResponseReceived60 s.Page = s.Browser.MustPage("")61 wait := s.Page.WaitEvent(&e)62 go s.Page.MustHandleDialog()63 errRod := rod.Try(func() {64 s.Page.65 Timeout(time.Duration(s.TimeoutSeconds) * time.Second).66 MustSetUserAgent(s.protoUserAgent).67 MustNavigate(paramURL)68 })69 if errRod != nil {70 fmt.Fprintln(color.Output, color.HiRedString("[ERRO]"), "["+time.Now().Format("2006-01-02 15:04:05")+"]", "[GoWappRod]:", "Error while visiting", paramURL, errRod.Error())71 return scraped, errRod72 }73 wait()74 if e.Response.SecurityDetails != nil && len(e.Response.SecurityDetails.Issuer) > 0 {75 scraped.CertIssuer = append(scraped.CertIssuer, e.Response.SecurityDetails.Issuer)76 }77 scraped.URLs = ScrapedURL{e.Response.URL, e.Response.Status}78 scraped.Headers = make(map[string][]string)79 for header, value := range e.Response.Headers {80 lowerCaseKey := strings.ToLower(header)81 scraped.Headers[lowerCaseKey] = append(scraped.Headers[lowerCaseKey], value.String())82 }83 scraped.DNS = scrapeDNS(paramURL)84 //TODO : headers and cookies could be parsed before load completed85 errRod = rod.Try(func() {86 s.Page.87 Timeout(time.Duration(s.LoadingTimeoutSeconds) * time.Second).88 MustWaitLoad()89 })90 if errRod != nil {91 fmt.Fprintln(color.Output, color.HiRedString("[ERRO]"), "["+time.Now().Format("2006-01-02 15:04:05")+"]", "[GoWappRod]:", "Error while loading", paramURL, errRod.Error())92 return scraped, errRod93 }94 scraped.HTML = s.Page.MustHTML()95 scripts, _ := s.Page.Elements("script")96 for _, script := range scripts {97 if src, _ := script.Property("src"); src.Val() != nil {98 scraped.Scripts = append(scraped.Scripts, src.String())99 }...

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Try

Using AI Code Generation

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1import (2func main() {3 browser := rod.New().MustConnect()4 defer browser.MustClose()5 page.MustElement("input[name=q]").MustInput("rod")6 _, err := page.Try(func() {7 page.MustElement("not-exists").MustClick()8 })9}10import (11func main() {12 browser := rod.New().MustConnect()13 defer browser.MustClose()14 page.MustElement("input[name=q]").MustInput("rod")15 page.WaitOpen(func() bool {16 return page.MustHas(".g")17 })18 fmt.Println("page loaded")19}20import (21func main() {22 browser := rod.New().MustConnect()23 defer browser.MustClose()24 page.MustElement("input[name=q]").MustInput("rod")25 page.WaitRequestIdle()26 fmt.Println("no more requests")27}28import (29func main() {30 browser := rod.New().MustConnect()31 defer browser.MustClose()32 page.MustElement("input[name=q]").MustInput("rod")33 page.WaitLoad()34 fmt.Println("page loaded")35}

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Try

Using AI Code Generation

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1import (2func main() {3 browser := rod.New().ControlURL(launcher.New().MustLaunch()).MustConnect()4 title, err := page.Title().Try()5 if err != nil {6 fmt.Println("error")7 } else {8 fmt.Println(title)9 }10}11import (12func main() {13 browser := rod.New().ControlURL(launcher.New().MustLaunch()).MustConnect()14 title, err := page.Title().Timeout(10).Try()15 if err != nil {16 fmt.Println("error")17 } else {18 fmt.Println(title)19 }20}21import (22func main() {23 browser := rod.New().ControlURL(launcher.New().MustLaunch()).MustConnect()24 title, err := page.Title().Timeout(10).Try()25 if err != nil {26 fmt.Println("error")27 } else {

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Try

Using AI Code Generation

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1import (2func main() {3 fmt.Println("Hello, playground")4 browser := rod.New().MustConnect()5 defer browser.MustClose()6 page.MustElement("input[name=q]").MustInput("rod")7 page.MustElement("input[name=q]").MustPress("Enter")8 page.MustElement("div.g").MustElement("a").MustClick()9 fmt.Println(page.MustTitle())10}11import (12func main() {13 fmt.Println("Hello, playground")14 browser := rod.New().MustConnect()15 defer browser.MustClose()16 page.MustElement("input[name=q]").MustInput("rod")17 page.MustElement("input[name=q]").MustPress("Enter")18 page.MustElement("div.g").MustElement("a").MustClick()19 fmt.Println(page.MustTitle())20}21import (22func main() {23 fmt.Println("Hello, playground")24 browser := rod.New().MustConnect()25 defer browser.MustClose()26 page.MustElement("input[name=q]").MustInput("rod")27 page.MustElement("input[name=q]").MustPress("Enter")28 page.MustElement("div.g").MustElement("a").MustClick()29 fmt.Println(page.MustTitle())30}31import (32func main() {33 fmt.Println("Hello, playground")34 browser := rod.New().MustConnect()35 defer browser.MustClose()36 page.MustElement("input[name=q]").MustInput("rod")37 page.MustElement("input[name=q]").MustPress("Enter")38 page.MustElement("div.g").MustElement("a").MustClick()39 fmt.Println(page.MustTitle())40}41import (

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Try

Using AI Code Generation

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1import (2func main() {3 browser := rod.New().MustConnect()4 input := page.MustElement("input[name='q']")5 button := page.MustElement("input[name='btnK']")6 input.MustInput("rod")7 button.MustClick()8 page.MustWaitLoad()9 page.MustScreenshot("rod.png")10 fmt.Println("Success")11}

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Try

Using AI Code Generation

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1import (2func main() {3 browser := rod.New().ControlURL(launcher.New().MustLaunch()).MustConnect()4 page.MustWaitLoad()5 title := page.MustElement("title").MustText()6 fmt.Println(title)7}8import (9func main() {10 browser := rod.New().ControlURL(launcher.New().MustLaunch()).MustConnect()11 page.MustWaitLoad()12 title := page.MustElement("title").MustText()13 fmt.Println(title)14}15import (16func main() {17 browser := rod.New().ControlURL(launcher.New().MustLaunch()).MustConnect()18 page.MustWaitLoad()19 title := page.MustElement("title").MustText()20 fmt.Println(title)21}22import (23func main() {

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Try

Using AI Code Generation

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1import (2func main() {3 input := page.MustElement("input")4 if input == nil {5 fmt.Println("input element not found")6 } else {7 fmt.Println(input)8 }9}10import (11func main() {12 input := page.MustElement("input")13 if input == nil {14 fmt.Println("input element not found")15 } else {16 fmt.Println(input)17 }18}19import (20func main() {21 input := page.ElementR("input")22 if input == nil {23 fmt.Println("input element not found")24 } else {25 fmt.Println(input)26 }27}28import (29func main() {30 input := page.Element("input")31 if input == nil {32 fmt.Println("input element not found")33 }

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Try

Using AI Code Generation

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1import (2func main() {3 r = rods.Rod{Length: 10}4 fmt.Println(r.Try())5}6import (7func main() {8 r = rods.Rod{Length: 11}9 fmt.Println(r.Try())10}11import (12func main() {13 r = rods.Rod{Length: 12}14 fmt.Println(r.Try())15}16import (17func main() {18 r = rods.Rod{Length: 13}19 fmt.Println(r.Try())20}21import (22func main() {23 r = rods.Rod{Length: 14}24 fmt.Println(r.Try())25}26import (27func main() {28 r = rods.Rod{Length: 15}29 fmt.Println(r.Try())30}31import (32func main() {33 r = rods.Rod{Length: 16}34 fmt.Println(r.Try())35}36import (37func main() {38 r = rods.Rod{Length: 17}39 fmt.Println(r.Try())40}41import (42func main() {43 r = rods.Rod{Length: 18

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