Trait AsyncTokenProvider 

pub trait AsyncTokenProvider: Send + Sync {
    // Required method
    fn resolve(
        &self,
    ) -> Pin<Box<dyn Future<Output = Option<String>> + Send + '_>>;
}

Async token resolver.

Required Methods

fn resolve(&self) -> Pin<Box<dyn Future<Output = Option<String>> + Send + '_>>

Returns the credential, or None to skip adding a header.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<F, Fut> AsyncTokenProvider for F

where F: Send + Sync + Fn() -> Fut, Fut: Future<Output = Option<String>> + Send + 'static,