Add chi router example

README.md

@@ -95,6 +95,8 @@ See middleware examples:
 
 * [HTTP](https://github.com/ulule/limiter/tree/master/examples/http/main.go)
 * [Gin](https://github.com/ulule/limiter/tree/master/examples/gin/main.go)
+* [Beego](https://github.com/ulule/limiter/blob/master/examples/beego/main.go)
+* [Chi](https://github.com/ulule/limiter/tree/master/examples/chi/main.go)
 
 ## How it works
 

examples/chi/main.go

@@ -0,0 +1,56 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+
+	"github.com/go-chi/chi"
+	redis "github.com/go-redis/redis"
+	"github.com/ulule/limiter"
+	"github.com/ulule/limiter/drivers/middleware/stdlib"
+	sredis "github.com/ulule/limiter/drivers/store/redis"
+)
+
+func main() {
+
+	// Define a limit rate to 4 requests per hour.
+	rate, err := limiter.NewRateFromFormatted("4-H")
+	if err != nil {
+		log.Fatal(err)
+		return
+	}
+
+	// Create a redis client.
+	option, err := redis.ParseURL("redis://localhost:6379/0")
+	if err != nil {
+		log.Fatal(err)
+		return
+	}
+	client := redis.NewClient(option)
+
+	// Create a store with the redis client.
+	store, err := sredis.NewStoreWithOptions(client, limiter.StoreOptions{
+		Prefix:   "limiter_chi_example",
+		MaxRetry: 3,
+	})
+	if err != nil {
+		log.Fatal(err)
+		return
+	}
+
+	// Create a new middleware with the limiter instance.
+	middleware := stdlib.NewMiddleware(limiter.New(store, rate), stdlib.WithForwardHeader(true))
+
+	// Launch a simple chi server.
+	router := chi.NewRouter()
+	router.Use(middleware.Handler)
+	router.Get("/", index)
+	fmt.Println("Server is running on port 7777...")
+	log.Fatal(http.ListenAndServe(":7777", router))
+}
+
+func index(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json; charset=utf-8")
+	w.Write([]byte(`{"message": "ok"}`))
+}