node.js - Claudia.js 文本响应和 Alexa 的问题

Question

我正在开发一个 Claudia.js 机器人，它可以通过 Slack、FB Messenger 和 Alexa 技能进行访问。据说在 claudia 中，你可以返回纯文本，框架会正确地将它返回给“前端”......我目前在这里拥有的东西在 FB 和 Slack 上工作得很好，但是当我通过 Alexa“服务模拟器”访问它时我总是收到“响应无效”。这是使用 Claudia.js 的 lambda。基本上它从客户端获取消息，然后将它们分流到另一个 Lambda，即“AI”。 Alexa 67 行好像卡住了。有什么想法？

const promiseDelay = require('promise-delay');
// const aws = require('aws-sdk');
// const lambda = new aws.Lambda();
const lambda = require('aws-lambda-invoke');

const botBuilder = require('claudia-bot-builder');

const stackTrace = require('stack-trace');

//const slackDelayedReply = botBuilder.slackDelayedReply;
const getIntentName = alexaPayload =>
    alexaPayload &&
    alexaPayload.request &&
    alexaPayload.request.type === 'IntentRequest' &&
    alexaPayload.request.intent &&
    alexaPayload.request.intent.name;


const api = botBuilder((message, apiRequest) => {
  console.log = console.log.bind(null, '[LOG]');
  console.info = console.info.bind(null, '[INFO]');
  console.error = console.error.bind(null, '[ERROR]');
  console.warn = console.warn.bind(null, '[WARN]');

  console.info(message, apiRequest);
  console.log(apiRequest.body);

  const requestData = {
    'user-id': {
      type: message.type,
      ID: message.sender
    },
    epoch: 1484771343.01,
    'payload-type': 'luis',
    facets: {},
    utterance: 'Seek Showtimes',
    payload: {
      query: 'Seek Showtime',
      topScoringIntent: {
        intent: 'SeekShowtime',
        score: 1.0
      },
      intents: [{
        intent: 'SeekShowtime',
        score: 1
      }],
      entities: []
    }
  };
  if (message.text) {
    return new Promise((resolve, reject) => {
      lambda.raw.invoke({
        FunctionName: 'ca2',
        Payload: JSON.stringify(requestData),
      }, (err, done) => {
        if (err) {
          const trace = stackTrace.parse(err);
          console.warn(err);
          console.error(trace);
          return reject(err);
        }
        resolve(done);
      });
    }).then((result) => { // the initial response
      const payload = JSON.parse(result.Payload);
      console.log(payload.utterance);
      return payload.utterance;
    }).catch((error) => {
      const trace = stackTrace.parse(error);
      console.warn(error);
      console.error(trace);
      return 'Could not setup';
    });
  } else if (getIntentName(apiRequest.body) === 'ExitApp') {
    return {
      response: {
        outputSpeech: {
          type: 'PlainText',
          text: 'Bye from Bot!'
        },
        shouldEndSession: true
      }
    };
  } else {
    return {};
  }
},
{ platforms: ['facebook', 'slackSlashCommand', 'alexa'] }
);

module.exports = api;

---

更新——即使我硬编码纯文本字符串响应或使用 Alexa Message Builder我仍然收到“响应无效”。因为服务响应返回“未定义”。

查看日志，一旦返回响应(用于由 botBuilder 解析并传递给 Alexa)，就会发生此错误 [TypeError: Cannot read property 'replace' of undefined]

---

另一个更新:

如果我用类似的东西替换return payload.utterance

if (type === 'alexa-skill') {
        Console.warn('trying to contact alexa');
        return "Hi from Alexa";
      }

问题依然存在。

这里是Json Request进来的地方，没问题:

2017-04-27T18:06:30.552Z    3d70c273-2b74-11e7-a1c8-bf3fec00cbff    STORE Map { "user-id": Map { "type": "alexa-skill", "ID": "amzn1.ask.account.AF6FUNJDSHGCXPVSAO5HUSRYFBD3SPCJJLILC4HLPS3K3L4AOWIMXPS4ZDDCXQ3ZVIV5L4FOMYD23PWZXEIAKYQBVXIQTPE2WW2PMBIXQIY3TUATXADCVNYO7NYUR2B45EU5GRIWBFHQIPLQVDQZMXD7IYVGTKAV3OWPHROCPR7XIUGNSJEAGQZJOMULSKT5HYSNUNJONASE34Y" }, "epoch": 1484771343.01, "payload-type": "luis", "utterance": "when is Logan playing", "payload": Map { "query": "when is Logan playing" } }

这是我从另一个 lambda(负载)返回的响应:

017-04-27T18:06:32.513Z 3d70c273-2b74-11e7-a1c8-bf3fec00cbff    [LOG] mnlpData { StatusCode: 200,
Payload: '{"utterance": "To find movies playing near you, I need to know where you are. Please tell me your zip code.", "AskLocation": 1, "context": {"updated": 1493316392.162429, "user_id": "TEST_ID_TUES_14", "sessions": [{"intents": ["SeekShowtime", "SeekShowtime"], "facet-delta": {}, "facets": {"ity.location": {"ity.zip": "", "ity.code": "", "ity.theatre-name": ""}, "ity.movie": {"ity.title": "", "ity.code": ""}, "ity.time": [], "ity.date": []}, "modes": ["", "SHOWTIME_SWITCH", "AskLocation", "SHOWTIME_SWITCH", "AskLocation"]}], "created": 1493316379.950335, "mode_process_count": 2, "user-id": {"type": "alexa-skill", "ID": "amzn1.ask.account.AF6FUNJDSHGCXPVSAO5HUSRYFBD3SPCJJLILC4HLPS3K3L4AOWIMXPS4ZDDCXQ3ZVIV5L4FOMYD23PWZXEIAKYQBVXIQTPE2WW2PMBIXQIY3TUATXADCVNYO7NYUR2B45EU5GRIWBFHQIPLQVDQZMXD7IYVGTKAV3OWPHROCPR7XIUGNSJEAGQZJOMULSKT5HYSNUNJONASE34Y"}, "utterance": ["To find movies playing near you, I need to know where you are. Please tell me your zip code."]}}' }

然后:

2017-04-27T18:06:32.514Z    3d70c273-2b74-11e7-a1c8-bf3fec00cbff    [WARN] trying to contact alexa

然后是错误:

2017-04-27T18:06:32.514Z    3d70c273-2b74-11e7-a1c8-bf3fec00cbff    [TypeError: Cannot read property 'replace' of undefined]

Answer 1

首先，如果您注意到从另一个 lambda 发送给您的负载，您会看到 utterance 是一个数组，因此您可能必须传递第一个元素(如果存在)。

通过查看机器人构建器的代码，我最好的选择是你得到的错误是由于你的 alexaAppName 未定义，并且当 passing it down 时对于以 base64 编码的响应者，不可能 run a replace这个变量。

我会尝试确保我的应用程序名称配置正确，并且给出的是有效字符串，如 alexa claudia example 中所示。 .