Crate dioxus_query

Expand description

dioxus-query

Fully-typed, async, reusable state management and synchronization for Dioxus 🧬.

Usage

#[derive(Clone, PartialEq, Eq, Hash)]
enum QueryKeys {
    User(usize),
}

#[derive(Clone, PartialEq, Eq, Hash, Debug)]
enum QueryError {
    UserNotFound(usize),
    Unknown
}

#[derive(Clone, PartialEq, Eq, Hash, Debug)]
enum QueryValue {
    UserName(String),
}

async fn fetch_user(keys: Vec<QueryKeys>) -> QueryResult<QueryValue, QueryError> {
    if let Some(QueryKeys::User(id)) = keys.first() {
        println!("Fetching user {id}");
        sleep(Duration::from_millis(1000)).await;
        match id {
            0 => Ok(QueryValue::UserName("Marc".to_string())),
            _ => Err(QueryError::UserNotFound(*id)),
        }
        .into()
    } else {
        QueryResult::Err(QueryError::Unknown)
    }
}

#[allow(non_snake_case)]
#[inline_props]
fn User(cx: Scope, id: usize) -> Element {
   let value = use_query(cx, || vec![QueryKeys::User(*id)], fetch_user);

    render!( p { "{value.result().value():?}" } )
}


fn app(cx: Scope) -> Element {
    let client = use_query_client::<QueryValue, QueryError, QueryKeys>(cx);

    let refresh = move |_| {
        to_owned![client];
        cx.spawn(async move {
            client.invalidate_query(QueryKeys::User(0)).await;
        });
    };

    render!(
        User { id: 0 }
        button { onclick: refresh, label { "Refresh" } }
    )
}

Modules

prelude