alexa - 从 Lambda 函数调用 REST API

Question

我正在尝试构建一种调用 REST API 来获取数据的技能。我正在使用 HelloWorld 示例并对其进行修改以满足我的需要。我正在使用 Request 节点 (node.js) 发出请求。

但是，对于我来说，我无法让它工作。我在日志中看到函数被调用并且返回了正确的结果，但是发送给 Alexa 的响应是空的!!知道我错过了什么吗？

const HelloWorldIntentHandler = {
  canHandle(handlerInput) {
    console.log("HelloWorldIntentHandler 1: ");
    return handlerInput.requestEnvelope.request.type === 'IntentRequest'
      && handlerInput.requestEnvelope.request.intent.name === 'HelloWorldIntent';
  },
  handle(handlerInput) {
    console.log("HelloWorldIntentHandler 2");
    var speechText = 'Hello World';

    Request.get(url, function(error, response, body) {
      console.log("I'm here")
      var data = JSON.parse(body)
      var result = data.records.totalNum
      if (result > 0) {
          speechText = "There are " + result + " matches";
      } else {
          speechText = "ERROR";
      }

      return handlerInput.responseBuilder
        .speak(speechText)
        .withSimpleCard('Hello World', speechText)
        .getResponse();
     });
  },
};

日志中的错误是

Error handled: speechOutput.trim is not a function

Answer 1

我能够使用 Axios 而不是 Request 来实现它。

const HelloWorldIntentHandler = {
  canHandle(handlerInput) {
    console.log("HelloWorldIntentHandler 1: ");
    return handlerInput.requestEnvelope.request.type === 'IntentRequest'
      && handlerInput.requestEnvelope.request.intent.name === 'HelloWorldIntent';
  },
  async handle(handlerInput) {
    console.log("HelloWorldIntentHandler 2");
    var speechText = 'default';

    try {
      const response = await Axios.get(url);
      var result = response.data.totalRecs;
      if (result > 0) {
          speechText = "There are " + result + " matches";
      } else {
          speechText = "ERROR";
      }
      console.log("text=" + speechText);
      return handlerInput.responseBuilder
        .speak(speechText)
         .withSimpleCard('Hello World', speechText)
         .getResponse();
    } catch (error) {
      console.log(error);
    }
  },
};