Amazon web services AWS Lambda瞄准CloudWatch日志

我试着跟踪视频，有一些问题我基本上能解决。我想我对AWS和Lambda还不熟悉。但我想知道是否有人能向我解释为什么我没有像视频中显示的那样将CloudWatch日志作为目标，以及我如何解决这个问题。当我试图保存一部电影时，alexa说：“我们现在不能保存你的电影。”。再试一次。如果这里有人能帮我，那就太棒了：）

我的lambda代码：

/* eslint-disable  func-names */
/* eslint-disable  no-console */

const Alexa = require('ask-sdk');
const dbHelper = require('./helpers/dbHelper');
const GENERAL_REPROMPT = "What would you like to do?";
const dynamoDBTableName = "dynamodb-starter";
const LaunchRequestHandler = {
  canHandle(handlerInput) {
    return handlerInput.requestEnvelope.request.type === 'LaunchRequest';
  },
  handle(handlerInput) {
    const speechText = 'Hello there. What is your favourite movie? You can say add moviename to add your favourite movie or say list my movies to get your favourite movies.';
    const repromptText = 'What would you like to do? You can say HELP to get available options';

    return handlerInput.responseBuilder
      .speak(speechText)
      .reprompt(repromptText)
      .getResponse();
  },
};

const InProgressAddMovieIntentHandler = {
  canHandle(handlerInput) {
    const request = handlerInput.requestEnvelope.request;
    return request.type === 'IntentRequest' &&
      request.intent.name === 'AddMovieIntent' &&
      request.dialogState !== 'COMPLETED';
  },
  handle(handlerInput) {
    const currentIntent = handlerInput.requestEnvelope.request.intent;
    return handlerInput.responseBuilder
      .addDelegateDirective(currentIntent)
      .getResponse();
  }
}

const AddMovieIntentHandler = {
  canHandle(handlerInput) {
    return handlerInput.requestEnvelope.request.type === 'IntentRequest'
      && handlerInput.requestEnvelope.request.intent.name === 'AddMovieIntent';
  },
  async handle(handlerInput) {
    const {responseBuilder } = handlerInput;
    const userID = handlerInput.requestEnvelope.context.System.user.userId; 
    const slots = handlerInput.requestEnvelope.request.intent.slots;
    const movieName = slots.MovieName.value;
    return dbHelper.addMovie(movieName, userID)
      .then((data) => {
        const speechText = `You have added movie ${movieName}. You can say add to add another one or remove to remove movie`;
        return responseBuilder
          .speak(speechText)
          .reprompt(GENERAL_REPROMPT)
          .getResponse();
      })
      .catch((err) => {
        console.log("Error occured while saving movie", err);
        const speechText = "we cannot save your movie right now. Try again!"
        return responseBuilder
          .speak(speechText)
          .getResponse();
      })
  },
};

const GetMoviesIntentHandler = {
  canHandle(handlerInput) {
    return handlerInput.requestEnvelope.request.type === 'IntentRequest'
      && handlerInput.requestEnvelope.request.intent.name === 'GetMoviesIntent';
  },
  async handle(handlerInput) {
    const {responseBuilder } = handlerInput;
    const userID = handlerInput.requestEnvelope.context.System.user.userId; 
    return dbHelper.getMovies(userID)
      .then((data) => {
        var speechText = "Your movies are "
        if (data.length == 0) {
          speechText = "You do not have any favourite movie yet, add movie by saving add moviename "
        } else {
          speechText += data.map(e => e.movieTitle).join(", ")
        }
        return responseBuilder
          .speak(speechText)
          .reprompt(GENERAL_REPROMPT)
          .getResponse();
      })
      .catch((err) => {
        const speechText = "we cannot get your movie right now. Try again!"
        return responseBuilder
          .speak(speechText)
          .getResponse();
      })
  }
}

const InProgressRemoveMovieIntentHandler = {
  canHandle(handlerInput) {
    const request = handlerInput.requestEnvelope.request;
    return request.type === 'IntentRequest' &&
      request.intent.name === 'RemoveMovieIntent' &&
      request.dialogState !== 'COMPLETED';
  },
  handle(handlerInput) {
    const currentIntent = handlerInput.requestEnvelope.request.intent;
    return handlerInput.responseBuilder
      .addDelegateDirective(currentIntent)
      .getResponse();
  }
}

const RemoveMovieIntentHandler = {
  canHandle(handlerInput) {
    return handlerInput.requestEnvelope.request.type === 'IntentRequest'
      && handlerInput.requestEnvelope.request.intent.name === 'RemoveMovieIntent';
  }, 
  handle(handlerInput) {
    const {responseBuilder } = handlerInput;
    const userID = handlerInput.requestEnvelope.context.System.user.userId; 
    const slots = handlerInput.requestEnvelope.request.intent.slots;
    const movieName = slots.MovieName.value;
    return dbHelper.removeMovie(movieName, userID)
      .then((data) => {
        const speechText = `You have removed movie with name ${movieName}, you can add another one by saying add`
        return responseBuilder
          .speak(speechText)
          .reprompt(GENERAL_REPROMPT)
          .getResponse();
      })
      .catch((err) => {
        const speechText = `You do not have movie with name ${movieName}, you can add it by saying add`
        return responseBuilder
          .speak(speechText)
          .reprompt(GENERAL_REPROMPT)
          .getResponse();
      })
  }
}

const HelpIntentHandler = {
  canHandle(handlerInput) {
    return handlerInput.requestEnvelope.request.type === 'IntentRequest'
      && handlerInput.requestEnvelope.request.intent.name === 'AMAZON.HelpIntent';
  },
  handle(handlerInput) {
    const speechText = 'You can introduce yourself by telling me your name';

    return handlerInput.responseBuilder
      .speak(speechText)
      .reprompt(speechText)
      .getResponse();
  },
};

const CancelAndStopIntentHandler = {
  canHandle(handlerInput) {
    return handlerInput.requestEnvelope.request.type === 'IntentRequest'
      && (handlerInput.requestEnvelope.request.intent.name === 'AMAZON.CancelIntent'
        || handlerInput.requestEnvelope.request.intent.name === 'AMAZON.StopIntent');
  },
  handle(handlerInput) {
    const speechText = 'Goodbye!';

    return handlerInput.responseBuilder
      .speak(speechText)
      .getResponse();
  },
};

const SessionEndedRequestHandler = {
  canHandle(handlerInput) {
    return handlerInput.requestEnvelope.request.type === 'SessionEndedRequest';
  },
  handle(handlerInput) {
    console.log(`Session ended with reason: ${handlerInput.requestEnvelope.request.reason}`);

    return handlerInput.responseBuilder.getResponse();
  },
};

const ErrorHandler = {
  canHandle() {
    return true;
  },
  handle(handlerInput, error) {
    console.log(`Error handled: ${error.message}`);

    return handlerInput.responseBuilder
      .speak('Sorry, I can\'t understand the command. Please say again.')
      .reprompt('Sorry, I can\'t understand the command. Please say again.')
      .getResponse();
  },
};

const skillBuilder = Alexa.SkillBuilders.standard();

exports.handler = skillBuilder
  .addRequestHandlers(
    LaunchRequestHandler,
    InProgressAddMovieIntentHandler,
    AddMovieIntentHandler,
    GetMoviesIntentHandler,
    InProgressRemoveMovieIntentHandler,
    RemoveMovieIntentHandler,
    HelpIntentHandler,
    CancelAndStopIntentHandler,
    SessionEndedRequestHandler
  )
  .addErrorHandlers(ErrorHandler)
  .withTableName(dynamoDBTableName)
  .withAutoCreateTable(true)
  .lambda();

部署时的代码：

lucasfalkowsky@Lucass-MacBook-Pro kneipe-temp % ask deploy -p ______
Deploy configuration loaded from ask-resources.json
Deploy project for profile [____]

==================== Deploy Skill Metadata ====================
[Warn]: The hash of current skill package folder does not change compared to the last deploy hash result, CLI will skip the deploy of skill package.
Skill ID: ___________

==================== Build Skill Code ====================
npm WARN dynamodb-starter@1.0.0 No repository field.

audited 18 packages in 1.094s
found 0 vulnerabilities

Skill code built successfully.
Code for region default built to /Users/___/Desktop/___/___/___/___/___/.ask/lambda/custom/build.zip successfully with build flow NodeJsNpmBuildFlow.

==================== Deploy Skill Infrastructure ====================
  ✔ Deploy Alexa skill infrastructure for region "default"
Skill infrastructures deployed successfully through @ask-cli/lambda-deployer.

==================== Enable Skill ====================
Skill is already enabled, skip the enable process.

---

据我所知，您缺少cloudwatch中的lambda日志。因此，要使其成为可能，您需要在managed polciy中扮演IAM角色

这为lambda提供了以下登录到cloudwatch的权限：

        {
        "Version": "2012-10-17",
        "Statement": [
            {
                "Effect": "Allow",
                "Action": [
                    "logs:CreateLogGroup",
                    "logs:CreateLogStream",
                    "logs:PutLogEvents"
                ],
                "Resource": "*"
            }
        ]
    }

---

我已经这样做了，并且重新部署了。这似乎是另一个问题。但是谢谢；）您还有其他想法吗？您确定您的lambda iam角色具有此权限吗？如果是，则您的lambda必须尚未执行。因此，仔细检查这两个选项，您也可以从console/cli手动触发lambda。正如您在CloudWatchLogs中看到的，有您描述的设置。我知道它的德语建议，请不要在公共平台上共享您的帐户详细信息，为了共享信息，您可以在评论中添加它们。是的，我可以看到，您可以尝试从控制台手动执行lambda吗？如果有任何错误，您可以在此处共享。arn是否要保密？