From 529057a2fa24859b6f0d5e4aac9e7828e7177e10 Mon Sep 17 00:00:00 2001
From: Asim <asim@chuhnk.me>
Date: Thu, 27 Oct 2016 12:58:10 +0100
Subject: [PATCH] uber rate limit wrappers

---
 uber.go | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 uber.go

diff --git a/uber.go b/uber.go
new file mode 100644
index 0000000..cb60836
--- /dev/null
+++ b/uber.go
@@ -0,0 +1,40 @@
+package ratelimit
+
+import (
+	"github.com/micro/go-micro/client"
+	"github.com/micro/go-micro/server"
+	"go.uber.org/ratelimit"
+
+	"golang.org/x/net/context"
+)
+
+type clientWrapper struct {
+	r ratelimit.Limiter
+	client.Client
+}
+
+func (c *clientWrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
+	c.r.Take()
+	return c.Client.Call(ctx, req, rsp, opts...)
+}
+
+// NewClientWrapper creates a blocking side rate limiter
+func NewClientWrapper(rate int) client.Wrapper {
+	r := ratelimit.New(rate)
+
+	return func(c client.Client) client.Client {
+		return &clientWrapper{r, c}
+	}
+}
+
+// NewHandlerWrapper creates a blocking server side rate limiter
+func NewHandlerWrapper(rate int) server.HandlerWrapper {
+	r := ratelimit.New(rate)
+
+	return func(h server.HandlerFunc) server.HandlerFunc {
+		return func(ctx context.Context, req server.Request, rsp interface{}) error {
+			r.Take()
+			return h(ctx, req, rsp)
+		}
+	}
+}