Crate limitr 

Limitr: Rate-Limiting Algorithms Library

  

This library provides various algorithms for rate-limiting purposes, allowing control over the flow of requests or operations in a system. The algorithms in this crate include:

• Token Bucket: For burstable traffic control, where tokens accumulate over time and are consumed by requests.
• Leaky Bucket: For smoothing out traffic, where requests are allowed to “leak” out at a fixed rate.

Example Usage

use limitr::bucket::LeakyBucket;
use tokio::time::{sleep, Duration};

#[tokio::main]
async fn main() {
    let mut bucket = LeakyBucket::new(10, 2);  // Capacity of 10, leak rate of 2 per second

    for i in 0..15 {
        if bucket.try_consume().await {
            println!("Request {} succeeded.", i + 1);
        } else {
            println!("Request {} failed, bucket is empty.", i);
        }
        sleep(Duration::from_millis(500)).await;
    }
}

Modules

bucket

Bucket Algorithms Module

window

Window-based rate limiting algorithms.