1 files changed, 101 insertions, 0 deletions
diff --git a/vendor/gopkg.in/throttled/throttled.v1/examples/rate-limit/main.go b/vendor/gopkg.in/throttled/throttled.v1/examples/rate-limit/main.go
new file mode 100644
index 000000000..b00119f63
--- /dev/null
+++ b/vendor/gopkg.in/throttled/throttled.v1/examples/rate-limit/main.go
@@ -0,0 +1,101 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"math/rand"
+	"net/http"
+	"sync"
+	"time"
+
+	"github.com/garyburd/redigo/redis"
+	"gopkg.in/throttled/throttled.v1"
+	"gopkg.in/throttled/throttled.v1/store"
+)
+
+var (
+	requests  = flag.Int("requests", 10, "number of requests allowed in the time window")
+	window    = flag.Duration("window", time.Minute, "time window for the limit of requests")
+	storeType = flag.String("store", "mem", "store to use, one of `mem` or `redis` (on default localhost port)")
+	delayRes  = flag.Duration("delay-response", 0, "delay the response by a random duration between 0 and this value")
+	output    = flag.String("output", "v", "type of output, one of `v`erbose, `q`uiet, `ok`-only, `ko`-only")
+)
+
+func main() {
+	flag.Parse()
+
+	var h http.Handler
+	var ok, ko int
+	var mu sync.Mutex
+	var st throttled.Store
+
+	// Keep the start time to print since-time
+	start := time.Now()
+	// Create the rate-limit store
+	switch *storeType {
+	case "mem":
+		st = store.NewMemStore(0)
+	case "redis":
+		st = store.NewRedisStore(setupRedis(), "throttled:", 0)
+	default:
+		log.Fatalf("unsupported store: %s", *storeType)
+	}
+	// Create the rate-limit throttler, varying on path
+	t := throttled.RateLimit(throttled.Q{Requests: *requests, Window: *window}, &throttled.VaryBy{
+		Path: true,
+	}, st)
+
+	// Set its denied handler
+	t.DeniedHandler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if *output == "v" || *output == "ko" {
+			log.Printf("KO: %s", time.Since(start))
+		}
+		throttled.DefaultDeniedHandler.ServeHTTP(w, r)
+		mu.Lock()
+		defer mu.Unlock()
+		ko++
+	})
+
+	// Throttle the OK handler
+	rand.Seed(time.Now().Unix())
+	h = t.Throttle(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if *output == "v" || *output == "ok" {
+			log.Printf("ok: %s", time.Since(start))
+		}
+		if *delayRes > 0 {
+			wait := time.Duration(rand.Intn(int(*delayRes)))
+			time.Sleep(wait)
+		}
+		w.WriteHeader(200)
+		mu.Lock()
+		defer mu.Unlock()
+		ok++
+	}))
+
+	// Print stats once in a while
+	go func() {
+		for _ = range time.Tick(10 * time.Second) {
+			mu.Lock()
+			log.Printf("ok: %d, ko: %d", ok, ko)
+			mu.Unlock()
+		}
+	}()
+	fmt.Println("server listening on port 9000")
+	http.ListenAndServe(":9000", h)
+}
+
+func setupRedis() *redis.Pool {
+	pool := &redis.Pool{
+		MaxIdle:     3,
+		IdleTimeout: 30 * time.Second,
+		Dial: func() (redis.Conn, error) {
+			return redis.Dial("tcp", ":6379")
+		},
+		TestOnBorrow: func(c redis.Conn, t time.Time) error {
+			_, err := c.Do("PING")
+			return err
+		},
+	}
+	return pool
+}