improve code.

.travis.yml

@@ -1,7 +1,8 @@
 sudo: false
 language: go
 go:
-  - 1.7
+  - 1.8
+  - 1.8.1
 services:
   - redis-server
 before_install:

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2016 Teambition
+Copyright (c) 2016-2017 Teambition
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,5 +1,5 @@
-Gear-Ratelimiter
-=====
+# Gear-Ratelimiter
+
 Smart rate limiter middleware for Gear, base on redis or memory limiter.
 
 [![Build Status](http://img.shields.io/travis/teambition/gear-ratelimiter.svg?style=flat-square)](https://travis-ci.org/teambition/gear-ratelimiter)
@@ -23,7 +23,7 @@ import "github.com/teambition/gear-ratelimiter"
 import (
   "github.com/teambition/gear-ratelimiter"
   redisClient "github.com/teambition/gear-ratelimiter/redis"
-	redis "gopkg.in/redis.v5"
+  redis "gopkg.in/redis.v5"
 )
 
 limiter := ratelimiter.New(&ratelimiter.Options{
@@ -65,5 +65,6 @@ go run example/main.go
 ```
 
 ## License
+
 Gear-Ratelimiter is licensed under the [MIT](https://github.com/teambition/gear-ratelimiter/blob/master/LICENSE) license.
-Copyright © 2016 [Teambition](https://www.teambition.com).
+Copyright © 2016-2017 [Teambition](https://www.teambition.com).

ratelimiter.go

@@ -1,14 +1,16 @@
 package ratelimiter
 
 import (
-	"fmt"
 	"strconv"
 	"time"
 
 	"github.com/teambition/gear"
 	baselimiter "github.com/teambition/ratelimiter-go"
 )
 
+// Version is ratelimiter's version
+const Version = "1.0.1"
+
 // Options for Limiter
 type Options struct {
 	// Key prefix, default is "LIMIT:".
@@ -71,8 +73,7 @@ func (l *RateLimiter) Serve(ctx *gear.Context) error {
 	if res.Remaining < 0 {
 		after := int(res.Reset.Sub(time.Now()).Seconds())
 		ctx.Set("Retry-After", strconv.Itoa(after))
-		return ctx.Error(&gear.Error{Code: 429,
-			Msg: fmt.Sprintf("Rate limit exceeded, retry in %d seconds.\n", after)})
+		return gear.ErrTooManyRequests.WithMsgf("Rate limit exceeded, retry in %d seconds.", after)
 	}
 	return nil
 }