如何将 Botkit 中间件与 Watson Assistant 对话服务器操作一起使用？

Question

我关注了这个tutorial to deploy a Slackbot with Watson Assistant. The tutorial uses server actions in the dialog to directly interface with a database. To connect Slack with Watson Assistant the tutorial uses the Conversation connector. That works fine, but I am interested in how to do the same with Botkit and the Botkit Middleware provided by Watson Developer Cloud。

如何使用无服务器操作，如何获取并传递必要的 API 密钥？

Answer 1

实际上有code that demonstrates how to configure the API key for IBM Cloud Functions and pass it as context variable to Watson Assistant。它使用 before 方法将 API 键添加到上下文变量。该值与其他与应用程序相关的凭据一起配置在单独的文件中。代码测试上下文变量和键是否存在，否则添加：

middleware.before = function(message, conversationPayload, callback) {
  // Code here gets executed before making the call to Conversation.

  // retrieve API Key from environment and split it into user / password
  var arr=process.env.ICF_KEY.split(":");
  // check if context exists
  if (typeof(conversationPayload.context) === 'undefined') {
      var context={context: {}}
      Object.assign(conversationPayload, context);
  }
  // if credentials already exists, we don't have to add them
  // else add credentials under private element in context
  if (typeof(conversationPayload.context.icfcreds) === 'undefined') {
     var privcontext = {"private": {icfcreds: {user: arr[0], password: arr[1]}}};
     Object.assign(conversationPayload.context, privcontext);
  }

  // log the payload structure for debugging
  // console.log(conversationPayload)
  callback(null, conversationPayload);
}