Trait async_graphql::dataloader::Loader

[+] Show declaration

pub trait Loader<K: Send + Hash + Eq + Clone + 'static>: Send + Sync + 'static {
    type Value: Send + Clone + 'static;
    type Error: Send + Clone + 'static;
[+] Expand attributes
#[must_use]    fn load<'life0, 'life1, 'async_trait>(
        &'life0 self, 
        keys: &'life1 [K]
    ) -> Pin<Box<dyn Future<Output = Result<HashMap<K, Self::Value>, Self::Error>> + Send + 'async_trait>>
    where
        'life0: 'async_trait,
        'life1: 'async_trait,
        Self: 'async_trait;
}

This is supported on crate feature dataloader only.

[−] Expand description

Trait for batch loading.

Associated Types

type Value: Send + Clone + 'static[−]

type of value.

type Error: Send + Clone + 'static[−]

Type of error.

Required methods

[+] Expand attributes

#[must_use]fn load<'life0, 'life1, 'async_trait>(
    &'life0 self,
    keys: &'life1 [K]
) -> Pin<Box<dyn Future<Output = Result<HashMap<K, Self::Value>, Self::Error>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, [−]

Load the data set specified by the keys.

Implementors