refactor qrcode api

lib/weixin_authorize/api/qrcode.rb

@@ -7,23 +7,22 @@ module WeixinAuthorize
       # 临时二维码
       def create_qr_scene(scene_id, expire_seconds=1800)
         post_url = "#{qrcode_base_url}/create"
-        qrcode_infos = {action_name: "QR_SCENE"}
-        qrcode_infos = qrcode_infos.merge(action_info(scene_id, expire_seconds))
+        qrcode_infos = {action_name: "QR_SCENE", expire_seconds: expire_seconds}
+        qrcode_infos = qrcode_infos.merge(action_info(scene_id))
         http_post(post_url, qrcode_infos)
       end
 
       # 临时二维码
-      def create_qr_limit_scene(scene_id, expire_seconds=1800)
+      def create_qr_limit_scene(scene_id)
         post_url = "#{qrcode_base_url}/create"
         qrcode_infos = {action_name: "QR_LIMIT_SCENE"}
-        qrcode_infos = qrcode_infos.merge(action_info(scene_id, expire_seconds))
+        qrcode_infos = qrcode_infos.merge(action_info(scene_id))
         http_post(post_url, qrcode_infos)
       end
 
-      # 通过ticket换取二维码
-      def get_qr_code(ticket)
-        get_url = "/showqrcode"
-        http_get(get_url, {ticket: ticket})
+      # 通过ticket换取二维码, 直接访问即可显示！
+      def qr_code_url(ticket)
+        "https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=#{ticket}"
       end
 
       private
@@ -32,8 +31,8 @@ module WeixinAuthorize
           "/qrcode"
         end
 
-        def action_info(scene_id, expire_seconds)
-          {expire_seconds: expire_seconds, action_info: {scene: {scene_id: scene_id}}}
+        def action_info(scene_id)
+          {action_info: {scene: {scene_id: scene_id}}}
         end
 
     end