Best Rod code snippet using cdp.DialContext
devtools_test.go
Source: devtools_test.go
...125func TestDevtools(t *testing.T) {126 ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)127 defer cancel()128 browserWs := fmt.Sprintf("ws://%s/", srv.Listener.Addr().String())129 browserConn, err := rpcc.DialContext(ctx, browserWs)130 AssertThat(t, err, Is{nil})131 defer browserConn.Close()132 browserClient := cdp.NewClient(browserConn)133 targets, err := browserClient.Target.GetTargets(ctx)134 AssertThat(t, err, Is{nil})135 AssertThat(t, len(targets.TargetInfos), EqualTo{2})136 defaultPageWs := fmt.Sprintf("ws://%s/page", srv.Listener.Addr().String())137 defaultPageConn, err := rpcc.DialContext(ctx, defaultPageWs)138 AssertThat(t, err, Is{nil})139 defer defaultPageConn.Close()140 defaultPageClient := cdp.NewClient(defaultPageConn)141 err = defaultPageClient.Page.Enable(ctx)142 AssertThat(t, err, Is{nil})143 selectedPageWs := fmt.Sprintf("ws://%s/page/%s", srv.Listener.Addr().String(), targets.TargetInfos[1].TargetID)144 selectedPageConn, err := rpcc.DialContext(ctx, selectedPageWs)145 AssertThat(t, err, Is{nil})146 defer selectedPageConn.Close()147 selectedPageClient := cdp.NewClient(selectedPageConn)148 err = selectedPageClient.Page.Enable(ctx)149 AssertThat(t, err, Is{nil})150}151func TestDetectDevtoolsHost(t *testing.T) {152 name, _ := ioutil.TempDir("", "devtools")153 defer os.RemoveAll(name)154 profilePath := filepath.Join(name, ".org.chromium.Chromium.deadbee")155 os.MkdirAll(profilePath, os.ModePerm)156 portFile := filepath.Join(profilePath, "DevToolsActivePort")157 ioutil.WriteFile(portFile, []byte("12345\n/devtools/browser/6f37c7fe-a0a6-4346-a6e2-80c5da0687f0"), 0644)158 AssertThat(t, detectDevtoolsHost(name), EqualTo{"127.0.0.1:12345"})...
headless.go
Source: headless.go
...11// fallbackHeadlessCreateURL tries to create a new target for Headless Chrome12// that does not support the json new endpoint. A rpcc connection is established13// to the "/devtools/browser" endpoint and "Target.createTarget" is issued.14func fallbackHeadlessCreateURL(ctx context.Context, d *DevTools, openURL string) (*Target, error) {15 // Context must be set, rpcc DialContext panics on nil context.16 if ctx == nil {17 ctx = context.Background()18 }19 // Headless Chrome requires a non-empty URL for CreateTarget.20 if openURL == "" {21 openURL = "about:blank"22 }23 wsURL := "ws://" + httpRe.ReplaceAllString(d.url, "") + "/devtools/browser"24 conn, err := rpcc.DialContext(ctx, wsURL)25 if err != nil {26 return nil, err27 }28 defer conn.Close()29 c := cdp.NewClient(conn)30 t, err := c.Target.CreateTarget(ctx, target.NewCreateTargetArgs(openURL))31 if err != nil {32 return nil, err33 }34 // List must be called after CreateTarget (headless bug):35 // https://bugs.chromium.org/p/chromium/issues/detail?id=70450336 list, err := d.List(ctx)37 if err != nil {38 return nil, err...
DialContext
Using AI Code Generation
1import (2func main() {3 ctx, cancel := chromedp.NewContext(context.Background())4 defer cancel()5 ctx, cancel = context.WithTimeout(ctx, 15*time.Second)6 defer cancel()7 err := chromedp.Run(ctx,8 chromedp.WaitVisible(`#main`, chromedp.ByID),9 chromedp.WaitReady(`#main`, chromedp.ByID),10 chromedp.OuterHTML(`html`, &res, chromedp.ByQuery),11 if err != nil {12 log.Fatal(err)13 }14 log.Printf("html: %s", res)15}
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