云函数使用订阅消息发送接口"subscribeMessage.send"在小程序端调用正常，使用API网关触发提示“-501007 invalid parameters”。

具体参数如下

{ touser: 'ot-Pu4hoj3dZ1WVw7mwZIST9-Jew',

  page: '/pages/index/index',

  lang: 'zh_CN',

  data:

   { character_string1: { value: '123456' },

     thing2: { value: '5分钟' } },

  templateId: 'TJ111a56HoAQzM2J9Ale7yyeb0UT82kuOHUNhjJJluo',

  miniprogramState: 'developer' }

调用结果：

{"errorCode":1,"errorMessage":"user code exception caught","stackTrace":"Error: errCode: -501007 invalid parameters | errMsg: subscribeMessage.send:fail Invalid request param\n    at callGeneralOpenAPI (/var/user/node_modules/wx-server-sdk/index.js:422:19)\n    at process._tickCallback (internal/process/next_tick.js:68:7)","statusCode":430}