Trait Upstreams

pub trait Upstreams:
    Send
    + Sync
    + 'static {
    type Error: StdError + Send + Sync + 'static;

    // Required method
    fn elect(&self) -> impl Future<Output = Result<&str, Self::Error>> + Send;
}

Upstreams trait.

Required Associated Types

type Error: StdError + Send + Sync + 'static

Error type.

Required Methods

fn elect(&self) -> impl Future<Output = Result<&str, Self::Error>> + Send

Elect a upstream to process current request.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Upstreams for &'static str

type Error = Infallible

async fn elect(&self) -> Result<&str, Self::Error>

impl Upstreams for String

type Error = Infallible

async fn elect(&self) -> Result<&str, Self::Error>

impl<T> Upstreams for Vec<T>

where T: AsRef<str> + Send + Sync + 'static,

type Error = Error

async fn elect(&self) -> Result<&str, Self::Error>

impl<const N: usize> Upstreams for [&'static str; N]

type Error = Error

async fn elect(&self) -> Result<&str, Self::Error>

Implementors