feat: 增加下载、购买记录接口

module/song_downlist.js

@@ -0,0 +1,11 @@
+// 会员下载歌曲记录
+
+const createOption = require('../util/option.js')
+module.exports = (query, request) => {
+  const data = {
+    limit: query.limit || '20',
+    offset: query.offset || '0',
+    total: 'true',
+  }
+  return request('POST', `/api/member/song/downlist`, data, createOption(query))
+}