从Lambda函数调用REST API

user1366265 发表于 Dev

用户1366265

我正在尝试建立一种调用REST API来获取数据的技能。我正在使用HelloWorld示例，并对其进行修改以适合我的需求。我正在使用Request节点（node.js）发出请求。

但是，对我而言，我无法正常工作。我在日志中看到调用了该函数，并且返回了正确的结果，但是发送给Alexa的响应为空！知道我缺少什么吗？

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

用户1366265

我能够使用Axios而不是Request来使它工作。

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);
    }
  },
};