The Token Bucket Algorithm: Build Server-Side API Rate Limiting in ~40 Lines
The article on DEV Community presents the token bucket algorithm as a method for server-side API rate limiting, with an implementation in roughly 40 lines of code. The algorithm works by maintaining a bucket that fills with tokens at a constant rate; each request consumes one token. If the bucket is empty, the request is denied. This allows for short bursts of traffic while enforcing a long-term average rate. The author provides a code example, likely in a language such as JavaScript or Python, demonstrating how to build a rate limiter using this approach. The implementation includes a token bucket class with methods to add tokens and check if a request is allowed. The article is part of a themed challenge on the platform, as indicated by the CSS styling for a retro edition.
Provides a practical, concise implementation of a fundamental rate-limiting algorithm for API developers.