Token Bucket Rate Limiter (Redis & Java)

The token bucket rate limiter is an efficient mechanism to manage request rates by using tokens added to a bucket at fixed intervals. Redis is used for tracking tokens, while Jedis provides a simple API for Redis commands from Java. The implementation includes adding dependencies, creating a TokenBucketRateLimiter class, validating requests, refilling tokens, and updating Redis. Thorough testing ensures correct behavior, including independent handling of clients, token refills, and capacity limits.