小程序境外支付调起支付参数：
{
appId: 'wx7732d8526b795c6f',
timeStamp: '1576753706',
nonceStr: '1576753705985',
package: '{"prepay_id":"wx19190825264489afdc39a10b1791291809"}',
paySign: 'LFY34x3cE7rlS5eaMXYFFVnimZwPusTmHqqMml/sCnX4q7fxSsqsKtERVyzH0RuuO4GhicMd+iNjaSmHg73r1QxXJnu+itg00ZDdcv8aGJD5QQbmn7hUkTdO/2UwJeE6YbWkLwbIDHBX6VaciAUdZjdCTEWfEZL7N4zgZuAR/Fvx/9s2JIWxSpCcIiu1fttwcoQw/O8jsDkSY0L2aCg6BG2sDUzPB/NgtCgb8gZ1HBMe/yuxlCFKBzpS5hxV6mWw5kVjSBhNl5YZLUqRSX880lAeJ3P90+bTZ8Dg4jdESMc/wonvZY7Xasc+iVLxQ+adijt2epf4xbKndJkZmSvd7g==' }
报调用支付JSAPI缺少参数：total_fee
你好，可参考以下帖子的解决方案：微信调用支付JSAPI缺少参数：total_fee，支付失败
https://developers.weixin.qq.com/community/develop/doc/0002e85da4cbf09d61e86e8ed5b400
若还有疑问，微信支付相关问题麻烦在微信支付专区提问，我们有专门的人员处理
微信支付专区：https://developers.weixin.qq.com/community/pay