control is a automation tool written from scratch using golang on top of Chrome DevTools
Warning This is an experimental project, backward compatibility is not guaranteed!
go get -u github.com/ecwid/control
Here is an example of using:
func main() {
session, cancel, err := control.Take("--no-startup-window")
if err != nil {
panic(err)
}
defer cancel()
retrier := retry.Static{
Timeout: 10 * time.Second,
Delay: 500 * time.Millisecond, // delay between attempts
}
session.Frame.MustNavigate("https://zoid.ecwid.com")
var products []string
err = retry.Func(retrier, func() error {
products = []string{}
return session.Frame.QueryAll(".grid-product__title-inner").Then(func(nl control.NodeList) error {
return nl.Foreach(func(n *control.Node) error {
return n.GetText().Then(func(s string) error {
products = append(products, s)
return nil
})
})
})
})
if err != nil {
panic(err)
}
// "must way" throws panic on an error
for _, node := range session.Frame.MustQueryAll(".grid-product__title-inner") {
log.Println(node.MustGetText())
}
}You can call any CDP method implemented in protocol package using a session
err = security.SetIgnoreCertificateErrors(session, security.SetIgnoreCertificateErrorsArgs{
Ignore: true,
})or call a custom unimplemented method
err = session.Call("Security.setIgnoreCertificateErrors", sendStruct, receiveStruct)Subscribe on the domain event
future := control.Subscribe(session, "Target.targetCreated", func(t target.TargetCreated) bool {
return t.TargetInfo.Type == "page"
})
defer future.Cancel()
// do something here ...
ctx, cancel := context.WithTimeout(context.TODO(), time.Second*10)
result /* target.TargetCreated */, err := future.Get(ctx)