What are the different rate limiting algorithms for APIs?

What are the different rate limiting algorithms for APIs?

There are several rate limiting algorithms, including Token Bucket, Leaky Bucket, Fixed Window, and Sliding Window. Each has its own advantages and use cases.

Can you explain how the Token Bucket algorithm works?

Sure! The Token Bucket algorithm allows a certain number of requests to be processed at a time. Tokens are added to a bucket at a fixed rate, and each request consumes a token. If the bucket is empty, requests are denied until more tokens are available.

What are the pros and cons of using the Leaky Bucket algorithm?

The Leaky Bucket algorithm smooths out bursts of traffic by processing requests at a constant rate. Pros include predictable traffic flow, but it can lead to increased latency during high demand.

Which algorithm is best for high traffic APIs?

For high traffic APIs, the Token Bucket algorithm is often preferred due to its flexibility in handling bursts while maintaining a steady flow.