What is the leaky bucket algorithm and how is it used in APIs?

What is the leaky bucket algorithm and how is it used in APIs?

The leaky bucket algorithm is a rate-limiting algorithm used to control the flow of data in APIs. It allows a certain amount of requests to be processed over time, ensuring that the system is not overwhelmed.

Can you explain how it works in detail?

Sure! Imagine a bucket with a small hole at the bottom. Requests are added to the bucket, and they 'leak' out at a constant rate. If the bucket overflows, it means too many requests are coming in too quickly, and excess requests are dropped.

What are the advantages of using this algorithm?

The leaky bucket algorithm helps maintain a steady flow of requests, prevents server overload, and ensures fair usage among users. It also provides predictable performance.

Are there any alternatives to the leaky bucket algorithm?

Yes, alternatives include the token bucket algorithm, fixed window counter, and sliding window log, each with its own advantages depending on the use case.