backon ![Build Status] ![Latest Version]

Retry with backoff without effort.

The opposite backoff implementation of the popular backoff.

Newer: developed by Rust edition 2021 and latest stable.
Cleaner: Iterator based abstraction, easy to use, customization friendly.
Easier: Trait based implementations, works like a native function provided by closures.

Quick Start

Retry a blocking function.

```rust use anyhow::Result; use backon::BlockingRetryable; use backon::ExponentialBuilder;

fn fetch() -> Result { Ok("hello, world!".to_string()) }

fn main() -> Result<()> { let content = fetch.retry(ExponentialBuilder::default()).call()?; println!("fetch succeeded: {}", content);

Ok(())

} ```

Retry an async function.

```rust use anyhow::Result; use backon::ExponentialBackoff; use backon::Retryable;

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

async fn main() -> Result<()> { let content = fetch.retry(ExponentialBackoff::default()).await?; println!("fetch succeeded: {}", content);

Ok(())

} ```

Check out the CONTRIBUTING.md guide for more details on getting started with contributing to this project.

Submit issues for bug report or asking questions in discussion.