第一个 alexa 技能

Question

我正在尝试使用 Node.js 开发我的第一个 Alexa 技能，每次我尝试测试它时我都会得到 "There was a problem with the requested skill's response"。

我正在尝试创建一个随机餐厅生成器。很简单，它是一组餐厅，选择一个随机索引，然后 Alexa 说出餐厅。我不知道哪里出错了我已经上传了我的 .json 和 .js 文件，如果有人能提供帮助，我将不胜感激。

index.js:

const Alexa = require('alexa-sdk');

const APP_ID = 'amzn1.ask.skill.9350e65b-fb41-48ce-9930-98b5156eb63c';

const handlers = {
  'LaunchRequest': function () {
    this.emit('randomRestaurantGeneratorIntent');
  },
  'randomRestaurantGeneratorIntent': function () {
    var randomResturant;
    var foodArray = ['IHOP', 'Dennys', 'burger king'];
    randomResturant = foodArray[Math.floor(Math.random() * foodArray.length)];
     
    
    this.response.speak(randomResturant);
    this.emit(':responseReady');
  },
  'AMAZON.HelpIntent': function () {
    const say = 'You can say what did I learn, or, you can say exit... How can I help you?';

    this.response.speak(say).listen(say);
    this.emit(':responseReady');
  },
  'AMAZON.CancelIntent': function () {
    this.response.speak('Bye!');
    this.emit(':responseReady');
  },
  'AMAZON.StopIntent': function () {
    this.response.speak('Bye!');
    this.emit(':responseReady');
  }
 
};

exports.handler = function (event, context, callback) {
  const alexa = Alexa.handler(event, context, callback);
  alexa.APP_ID = APP_ID;
  alexa.registerHandlers(handlers);
  alexa.execute();
};

randomResturantGeneratorIntent.JSON:

{
    "interactionModel": {
        "languageModel": {
            "invocationName": "random restaurant generator",
            "intents": [
                {
                    "name": "AMAZON.CancelIntent",
                    "samples": []
                },
                {
                    "name": "AMAZON.HelpIntent",
                    "samples": []
                },
                {
                    "name": "AMAZON.StopIntent",
                    "samples": []
                },
                {
                    "name": "AMAZON.NavigateHomeIntent",
                    "samples": []
                },
                {
                    "name": "randomRestaurantGeneratorIntent",
                    "slots": [],
                    "samples": [
                        "Launch Random Restaurant Generator "
                    ]
                }
            ],
            "types": []
        }
    }
}

谢谢

Answer 1

尝试在线编辑器中的此功能以获得您的第一项技能。并尝试使用 open random restaurant generator,

进行测试

/**
 * Called when the user launches the skill without specifying what they want.
 */
function onLaunch(launchRequest, session, callback) {
    console.log(`onLaunch requestId=${launchRequest.requestId}, sessionId=${session.sessionId}`);

    // Dispatch to your skill's launch.
    getWelcomeResponse(callback);
}


function buildResponse(sessionAttributes, speechletResponse) {
    return {
        version: '1.0',
        sessionAttributes,
        response: speechletResponse,
    };
}

function getWelcomeResponse(callback) {
    // If we wanted to initialize the session to have some attributes we could add those here.
    const sessionAttributes = {};
    const cardTitle = 'Welcome';
    const speechOutput = 'Welcome to Your First Alexa Skill';
    // If the user either does not reply to the welcome message or says something that is not
    // understood, they will be prompted again with this text.
    const repromptText = 'Please tell me What do you want to know?';
    const shouldEndSession = false;

    callback(sessionAttributes,
        buildSpeechletResponse(cardTitle, speechOutput, repromptText, shouldEndSession));
}

function buildSpeechletResponse(title, output, repromptText, shouldEndSession) {
    return {
        outputSpeech: {
            type: 'PlainText',
            text: output,
        },
        //For testing purpose only
        // card: {
        //     type: 'Simple',
        //     title: `SessionSpeechlet - ${title}`,
        //     content: `SessionSpeechlet - ${output}`,
        // },
        reprompt: {
            outputSpeech: {
                type: 'PlainText',
                text: repromptText,
            },
        },
        shouldEndSession,
    };
}

exports.handler = (event, context, callback) => {
    try {
        console.log(`event.session.application.applicationId=${event.session.application.applicationId}`);


        if (event.request.type === 'LaunchRequest') {
            onLaunch(event.request,
                event.session,
                (sessionAttributes, speechletResponse) => {
                    callback(null, buildResponse(sessionAttributes, speechletResponse));
                });
        }

    }
    catch (err) {
        callback(err);
    }
};

Answer 2

我已经使用 lambda 两年了，在我开始使用 aws cloud9 之前调试和部署对我来说很糟糕。

我建议你使用aws cloud9，它是一个云IDE，用于编写、运行宁和调试代码。您可以运行 lambda 函数作为本地环境。

查看他们的 website 以获取更多信息。这很耗时，但完全值得，特别是如果您想开发 Alexa 技能。

Answer 3

大多数情况下，您会因为两件事而收到该错误：

您的 lambda 函数中没有触发器 "Alexa Skill Kit"。如果没有，可以在lambda函数配置的设计器选项卡中添加一个。
您的 lambda 函数中没有必要的模块。您可以使用 "npm install ask-sdk-core" 在本地添加它们，然后上传文件夹。

Answer 4

尝试以这种方式呈现响应。

var speechOutput =  'Your response here';
var reprompt = "How can I help?";
this.response.speak(speechOutput);
this.response.listen(reprompt);
this.emit(":responseReady");

Answer 5

这样使用：

var speechOutput =  'Your response here';
var reprompt = "How can I help?";
this.response.speak(speechOutput);
this.response.listen(reprompt);
this.emit(":responseReady");

第一个 alexa 技能

First alexa skill

node.js

amazon-web-services

alexa

alexa-skill

alexa-app