Trait Provider 

pub trait Provider:
    Debug
    + Send
    + Sync {
    // Required method
    fn get<'life0, 'life1, 'async_trait>(
        &'life0 self,
        key: &'life1 Key<'_>,
    ) -> Pin<Box<dyn Future<Output = Result<Option<String>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;

    // Provided method
    fn may_resolve(&self, key: &Key<'_>) -> bool { ... }
}

A config provider.

Required Methods

fn get<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 Key<'_>, ) -> Pin<Box<dyn Future<Output = Result<Option<String>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Returns the value at the given config path, if it exists.

Provided Methods

fn may_resolve(&self, key: &Key<'_>) -> bool

Returns true if the given key might be resolvable by this Provider.

Dynamic resolvers will typically return true unconditionally, which is the default implementation.

Implementors