How does the ServerAction obtain the result of the action in the SSR mode?

[tqq1994516]

I use the Resource to listen to action.version and then call other server functions. Then, I read the data returned by the server functions in the Transition component. However, when I use the Resource to listen to action.version and try to obtain action.value, I can't get the data.

    let user = Resource::new(
        move || login_action.version()(),
        move |_| user_detail(),
    );

     let login_res = Resource::new(
        move || login_action.version()(),
        move |_| async move {
            login_action.value()()
        },
     );

I also tried several other methods, but still couldn't get the data.

    let i_e = RwSignal::new("".to_string());
    let n_e = RwSignal::new("".to_string());
    let w_e = RwSignal::new("".to_string());


    let login_value = Signal::derive(move || {
        match login_action.value()() {

            Some(res) => match res {
                Ok(_) => Some("login success".to_string()),
                Err(e) => Some(e.to_string()),
            },
            None => None,
        }
    });
    let login_memo = Memo::new(move |_| {
        match login_action.value()() {

            Some(res) => match res {
                Ok(_) => Some("login success".to_string()),
                Err(e) => Some(e.to_string()),
            },
            None => None,
        }
    });
    Effect::new_isomorphic(move || {
        if let Some(r) = login_action.value()() {
            if let Err(e) = r {
                leptos::logging::log!("login res:{e}");
                i_e(e.to_string());
            }
        }
    });
    Effect::new(move || {
        if let Some(r) = login_action.value()() {
            if let Err(e) = r {
                leptos::logging::log!("login res:{e}");
                n_e(e.to_string());
            }

        }
    });

    Effect::watch(
        move || login_action.value()(),
        move |curr, prev, _| {
            if let Some(r) = curr {
                if let Err(e) = r {
                    leptos::logging::log!("login res:{e}");
                    w_e(e.to_string());
                }
            }
        },
        true,
    );

    view! {
        <main>
            <Transition fallback=|| "Loading...">
                {move || {
                    user.get().map(|u| match u {
                        Err(e) => view! { 
                            <p>error:{e.to_string()}</p>
                            //get user info error, redirect to login page
                            <Show when=move || use_url()().path() != "/login">
                                <Redirect path="/login" />
                            </Show>
                        }.into_any(),
                        Ok(u) => {
                            global_state.logged().set(true);
                            view! { <p>id:{u.user_id}</p> }.into_any()
                        }
                    })
                }}
                <p>ie:{i_e}</p>
                <p>ne:{n_e}</p>
                <p>we:{w_e}</p>
                <p>d:{login_value}</p>
                <p>m:{login_memo}</p>
                <p>r:{move || {
                    match login_res.get().flatten() {
                        Some(r) => match r {
                            Ok(_) => view! { "login success" }.into_any(),
                            Err(e) => view! { <p>{e.to_string()}</p> }.into_any(),
                        },
                        None => view! { "None" }.into_any(),
                    }
                }}</p>
            </Transition>
        </main>
    }

[tqq1994516]

By looking at #2069 I learned that actively calling the redirect function on server fn can prevent the default redirect of the form and get the response from server fn for subsequent processing

[gbj]

I'm sorry, I'm not sure I understand what you mean by "get the data." Sticking with your first example: What are you expecting to happen, and what happens instead? I would assume .value() here on the Action returns None because you have not dispatched a value to the action? What are you trying to do?

[tqq1994516]

I'm sorry, I'm not sure I understand what you mean by "get the data." Sticking with your first example: What are you expecting to happen, and what happens instead? I would assume .value() here on the Action returns None because you have not dispatched a value to the action? What are you trying to do?

I want to catch the exception when there is an exception in login_action.value and then pop up a prompt through the dialog. However, after enabling island, after the actionform is submitted, it is redirected. Changes in login_action.value cannot be monitored through either resource or effect.
This leaves me at a loss.
In the non-island mode, the operation as I mentioned above can be used normally, but it won't work if the island is enabled, just as I said in this
#3642. @gbj If you have time, please take a look for me. Thank you.🙏

[gbj]

It is quite hard to follow a question that you have spread across multiple different discussions that keep closing and re-opening. Would you like me to answer in this discussion, or the other one?

[tqq1994516]

It is quite hard to follow a question that you have spread across multiple different discussions that keep closing and re-opening. Would you like me to answer in this discussion, or the other one?

Solve the other one.