lib/wechat/api.rb in wechat-api-0.3.0 vs lib/wechat/api.rb in wechat-api-0.4.0

@@ -2,7 +2,20 @@
 
 #
 module Wechat
   #
   module Api
+    class Error < StandardError; end
+    
+    def self.client(appid = 'origin_id')
+      var = "@_client_#{appid}"
+      if instance_variable_defined?(var)
+        instance_variable_get(var)
+      elsif block_given?
+        c = yield(Client)
+        instance_variable_set var, c
+      else
+        raise Error, :not_initialized
+      end
+    end
   end
 end