package main import ( "context" "encoding/json" "errors" "flag" "fmt" "log" "net/http" cdp "github.com/knq/chromedp" cdptypes "github.com/knq/chromedp/cdp" "github.com/knq/chromedp/cdp/network" ) var ( flagPort = flag.Int("port", 8544, "port") ) func main() { var err error flag.Parse() // setup http server mux := http.NewServeMux() mux.HandleFunc("/", func(res http.ResponseWriter, req *http.Request) { buf, err := json.Marshal(req.Cookies()) if err != nil { http.Error(res, err.Error(), http.StatusInternalServerError) return } fmt.Fprintf(res, indexHTML, string(buf)) }) go http.ListenAndServe(fmt.Sprintf(":%d", *flagPort), mux) // 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 var res string err = c.Run(ctxt, setcookies(fmt.Sprintf("http://localhost:%d", *flagPort), &res)) 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) } log.Printf("passed cookies: %s", res) } func setcookies(host string, res *string) cdp.Tasks { return cdp.Tasks{ cdp.ActionFunc(func(ctxt context.Context, h cdptypes.Handler) error { success, err := network.SetCookie(host, "cookiename", "cookievalue").Do(ctxt, h) if err != nil { return err } if !success { return errors.New("could not set cookie") } return nil }), cdp.Navigate(host), cdp.Text(`#result`, res, cdp.ByID, cdp.NodeVisible), } } const ( indexHTML = `

` )