Trait TokenProvider 

pub trait TokenProvider: Send + Sync {
    // Required method
    fn access_token<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<String, Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;

    // Provided method
    fn refresh<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait { ... }
}

Supplies the access token each request goes out with.

Required Methods

fn access_token<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<String, Error>> + Send + 'async_trait>>

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

The token to send, asked for on every request.

Provided Methods

fn refresh<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>>

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

Asked once when a request is answered with 401. Answer true when the next access_token will hand out renewed credentials, and the request is sent again.

Dyn Compatibility

This trait is dyn compatible.

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

Implementations on Foreign Types

impl<P: TokenProvider + ?Sized> TokenProvider for Arc<P>

A provider behind an Arc is a provider, so one can be shared with the client and kept by the application — to watch its refreshes, say.

fn access_token<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<String, Error>> + Send + 'async_trait>>

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

fn refresh<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>>

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

Implementors

impl TokenProvider for StaticTokenProvider