From c4aac313b488dd20c1c282fc8877044e086df22f Mon Sep 17 00:00:00 2001
From: vkill <vkill.net@gmail.com>
Date: Sat, 29 Dec 2018 09:57:01 +0800
Subject: [PATCH] Update README.md

---
 README.md | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index da16e9e..8535c2e 100644
--- a/README.md
+++ b/README.md
@@ -197,7 +197,7 @@ r = WxPay::Service.generate_js_pay_req params
 
 #### Notify Process
 
-A simple example of processing notify.
+A simple example of processing notify for Rails Action Controller.
 
 ```ruby
 # config/routes.rb
@@ -219,6 +219,39 @@ def notify
 end
 ```
 
+A simple example of processing notify for Grape v1.2.2 .
+
+```ruby
+# Gemfile
+gem 'multi_xml'
+
+# config/routes.rb
+mount Wechat::Api => '/notify'
+
+# app/api/wechat/api.rb
+module Wechat
+  class Api < Grape::API
+    content_type :xml, 'text/xml'
+    format :xml
+    formatter :xml, lambda { |object, env| object.to_xml(root: 'xml', dasherize: false) }
+    
+    post "" do
+      result = params["xml"]
+      if WxPay::Sign.verify?(result)
+          # find your order and process the post-paid logic.
+          
+        status 200
+        {return_code: "SUCCESS"}
+      else
+        status 200
+        {return_code: "FAIL", return_msg: "签名失败"}
+      end
+    end
+  end
+end
+```
+
+
 ### Integrate with QRCode(二维码)
 
 Wechat payment integrating with QRCode is a recommended process flow which will bring users comfortable experience. It is recommended to generate QRCode using `rqrcode` and `rqrcode_png`.
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