Trait Retryable

pub trait Retryable<B, T, E, Fut, FutureFn>
where
    B: BackoffBuilder,
    Fut: Future<Output = Result<T, E>>,
    FutureFn: FnMut() -> Fut,
{
    // Required method
    fn retry(
        self,
        builder: B,
    ) -> Retry<<B as BackoffBuilder>::Backoff, T, E, Fut, FutureFn> ;
}

Retryable will add retry support for functions that produce futures with results.

This means all types that implement FnMut() -> impl Future<Output = Result<T, E>> will be able to use retry.

For example:

• Functions without extra args:

async fn fetch() -> Result<String> {
    Ok(reqwest::get("https://www.rust-lang.org").await?.text().await?)
}

• Closures

|| async {
    let x = reqwest::get("https://www.rust-lang.org")
        .await?
        .text()
        .await?;

    Err(anyhow::anyhow!(x))
}

Required Methods

fn retry( self, builder: B, ) -> Retry<<B as BackoffBuilder>::Backoff, T, E, Fut, FutureFn>

Generate a new retry

Implementors

impl<B, T, E, Fut, FutureFn> Retryable<B, T, E, Fut, FutureFn> for FutureFn

where B: BackoffBuilder, Fut: Future<Output = Result<T, E>>, FutureFn: FnMut() -> Fut,