replace multi_json with yajl

Gemfile

 source 'https://rubygems.org'
 
-gem "rspec", "~> 3.0.0.beta1"
-gem "redis-namespace", "~> 1.4.1"
-gem "rake", "~> 0.9.6"
-gem 'simplecov', '~> 0.7.1', :require => false
-gem "codeclimate-test-reporter", require: nil
-gem 'coveralls', require: false
-
+group :test do
+  gem "rspec", "~> 3.0.0.beta1"
+  gem "redis-namespace", "~> 1.4.1"
+  gem "rake", "~> 0.9.6"
+  gem 'simplecov', '~> 0.7.1', :require => false
+  gem "codeclimate-test-reporter", require: nil
+  gem 'coveralls', require: false
+end
 group :development do
   # For debugger
   gem "pry-rails", "~> 0.3.2"

lib/weixin_authorize.rb

 require "rest-client"
-require "multi_json"
+require 'yajl/json_gem'
 require "weixin_authorize/config"
 require "weixin_authorize/handler"
 require "weixin_authorize/api"
 require "weixin_authorize/client"
 
-MultiJson.use :yajl
-
 module WeixinAuthorize
 
   # Storage
@@ -27,7 +25,7 @@ module WeixinAuthorize
 
     def http_post_without_token(url, payload={}, headers={}, endpoint="plain")
       post_api_url = endpoint_url(endpoint, url)
-      payload = MultiJson.dump(payload) if endpoint == "plain" # to json if invoke "plain"
+      payload = JSON.dump(payload) if endpoint == "plain" # to json if invoke "plain"
       load_json(RestClient.post(post_api_url, payload, :params => headers))
     end
 

lib/weixin_authorize/api/menu.rb

@@ -20,7 +20,7 @@ module WeixinAuthorize
       # 自定义菜单创建接口
       # https://api.weixin.qq.com/cgi-bin/menu/create?access_token=ACCESS_TOKEN
       def create_menu(menu)
-        menu = MultiJson.load(menu) if menu.is_a?(String)
+        menu = JSON.load(menu) if menu.is_a?(String)
         create_menu_url = "#{menu_base_url}/create"
         http_post(create_menu_url, menu)
       end

spec/api/menu_spec.rb

@@ -5,7 +5,7 @@ describe WeixinAuthorize::Api::Menu do
 
   it "can create a menu" do
     menu = '{"button":[{"type":"click","name":"今日歌曲","key":"V1001_TODAY_MUSIC"},{"type":"click","name":"歌手简介","key":"V1001_TODAY_SINGER"},{"name":"菜单","sub_button":[{"type":"view","name":"搜索","url":"http://www.soso.com/"},{"type":"view","name":"视频","url":"http://v.qq.com/"},{"type":"click","name":"赞一下我们","key":"V1001_GOOD"}]}]}'
-    response = $client.create_menu(MultiJson.load(menu)) # or Json string
+    response = $client.create_menu(JSON.load(menu)) # or Json string
     expect(response.code).to eq(WeixinAuthorize::OK_CODE)
   end
 

spec/spec_helper.rb

@@ -15,7 +15,7 @@
 # See http://rubydoc.info/gems/rspec-core/RSpec/Core/Configuration
 require "rspec"
 require "weixin_authorize"
-require "multi_json"
+require 'yajl/json_gem'
 require "redis"
 require "redis-namespace"
 

weixin_authorize.gemspec

@@ -19,9 +19,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_dependency "rest-client", ">= 1.6.7"
-  spec.add_dependency "multi_json", "~> 1.9.0"
   spec.add_dependency "redis", "~> 3.0.7"
-
   # A streaming JSON parsing and encoding library for Ruby (C bindings to yajl)
   # https://github.com/brianmario/yajl-ruby
   spec.add_dependency "yajl-ruby", "~> 1.2.0"