kundank78 / Rate-Limiter

Golang rate limiter implementation

Rate Limiter

This package offers a Go implementation of Rate Limit Token Bucket and Sliding Window algorithms. It also supports a Redis-backed sliding window approach, utilizing the sorted sets data structure for distributed rate limiting.

Usage

Initialize the rate limiter with max number of requests in a given time window in seconds. Sliding Window Distributed option uses redis sorted sets to maintain user request timestamps (Redis server config are currently hardcoded)

limiter := pkg.Init(pkg.SlidingWindowDistributedAlgo, 10, 60)
router.GET("/albums", pkg.RateLimiter(limiter, getAlbums))

Example

Execute main.go which runs a simple album server at localhost:8000. You can try different rate limiter options by modifying the rate limiter init() params.

Next Steps

• Add support for user identifiers other than ip address
• Add support for approximated sliding window algo
• Support frameworks other than gin