GitHub - etcinit/speedbump: A Redis-backed rate limiter in Go
package main import ( "fmt" "time" "github.com/etcinit/speedbump" "gopkg.in/redis.v5" ) func main() { client := redis.NewClient(&redis.Options{ Addr: "localhost:6379", Password: "", DB: 0, }) hasher := speedbump.PerSecondHasher{} // Here we create a limiter that will only allow 5 requests per second limiter := speedbump.NewLimiter(client, hasher, 5) for { // This example has a hardcoded IP, but you would replace it with the IP // of a client on a real case. success, err := limiter.Attempt("127.0.0.1") if err != nil { panic(err) } if success { fmt.Println("Successful!") } else { fmt.Println("Limited! :(") } time.Sleep(time.Millisecond * time.Duration(100)) } }