tokio-based leaky-bucket rate limiter

This project is a rate limiter based on the leaky bucket algorithm.

Usage

This library requires the user to add the following dependencies to use:

leaky-bucket = "0.5.0"

Examples

use leaky_bucket::LeakyBuckets;
use std::{error::Error, time::Duration};

#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {
    let rate_limiter = LeakyBucket::builder()
        .max(100)
        .refill_interval(Duration::from_secs(10))
        .refill_amount(100)
        .build()?;

    println!("Waiting for permit...");
    // should take about ten seconds to get a permit.
    rate_limiter.acquire(100).await?;
    println!("I made it!");

    Ok(())
}