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I'm working on a Claudia.js bot that can be reached through Slack, FB messenger, and as an Alexa skill. Supposedly in claudia, you can return plain text and the framework will give it back to the "frontend" correctly... What I have currently have here works fine with FB and Slack, but when I access it through the Alexa "Service Simulator" I always get "The response is invalid." Here is the lambda that uses Claudia.js. Basically it gets messages from the client and then shunts them to another Lambda that is the "AI". Alexa seems to be choking on line 67. Ideas?

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;

Update -- even if I hardcode a plain text string response or use Alexa Message Builder I still get "The response is invalid." as the Service Response is coming back "undefined."

Looking at logs, as soon as the response is returned (for parsing by botBuilder and a pass to Alexa) this error occurs [TypeError: Cannot read property 'replace' of undefined]

Another update:

If I replace return payload.utterance with something like

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

The problem persists.

Here is where the Json Request comes in, no problem:

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" } }

Here is the response I get back from the other lambda (the payload):

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."]}}' }

then:

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

and then the error:

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

1

如果您还没有，请运行claudia update --configure-alexa-skill 并输入您的机器人名称，然后使用它在您的 Alexa 技能构建器设置中提供的 url。选择 HTTPS 而不是 lambda arn。

目前，message.text作为空字符串传递，这意味着您的任何日志块都没有触发，并且您在代码的最底部返回一个空对象。通过用字符串替换那个空对象来自己测试它，alexa 测试器不再抱怨。

那么为什么 message.text 是一个空字符串呢？Claudia js 通过连接已为您的意图填充的所有插槽来填充文本字段。如果您的意图没有插槽，则 claudia 将传递一个空字符串。

将槽添加到您的意图中，确保已配置技能，并修复逻辑语句问题。

于 2017-04-28T06:33:19.343 回答
1

首先，如果您注意到从另一个 lambda 发送给您的有效负载，您可以看到它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，我最好的选择是您得到的错误是由于您alexaAppName未定义的事实，并且当将其传递给以 base64 编码的响应者时，无法运行替换这个变量。

我会尝试确保我的应用程序名称配置正确，并且给出的是一个有效的字符串，如alexa claudia 示例中所示。

于 2017-04-28T06:44:43.080 回答