昨天的index.ts負責

• init firebase

• http onRequest

• 製作Message、action dispatcher
  model.ts 則是作為型別check的標準

    export interface MessageInterface {
       session: string,
       queryText: string,
       action?: string,
       event?: string, 
       contaxt? :string,
       parameters: any,
       idToken?: string,
       sentiment?: number,
       time: number,
       responseText?: string,
       res: functions.Response<any>
    }
  
    export class Message implements MessageInterface {
        session: string
        queryText: string
        action?: string
        event?: string
        contaxt?: string
        parameters: any
        idToken?: string
        sentiment?: number
        time: number
        responseText?: string
        res: functions.Response<any>
  
    constructor(message: MessageInterface) {
        this.session = message.session
        this.queryText = message.queryText
        this.action = message.action
        this.event = message.event
        this.contaxt = message.contaxt
        this.parameters = message.parameters
        this.idToken = message.idToken
        this.sentiment = message.sentiment
        this.time = message.time
        this.responseText = message.responseText
        this.res = message.res
    }
    }
  

responseFormat.ts 則是設定回覆text的格式，並利用model做型別確認

    import { Message } from "./model"
    export const toTextResponse = (message: Message): any => {
        const textResponse = {
            "fulfillmentMessages": [
                {
                    "text": {
                        "text": [
                            `${message.responseText}`
                        ]
                    }
                }
            ]
        }

        return textResponse
    }

    export const toGoogleAssistantResponse = (message: Message): any => {
        const googleAssistantResponse = {
            "payload": {
                "google": {
                    "expectUserResponse": true,
                    "richResponse": {
                        "items": [
                            {
                                "simpleResponse": {
                                    "textToSpeech": `${message.responseText}`
                                }
                            }
                        ]
                    }
                }
            }
        }

        return googleAssistantResponse
    }

    export const toEventResponse = (message: Message): any => {
        const eventResponse = {
            "followupEventInput": {
                "name": `${message.event}`,
                "languageCode": "zh-tw",
                "parameters": message.parameters
            }
        }

        return eventResponse
    }

workFlow.ts

import {  MessageInterface } from "./model"
import * as responseFormat from "./responseFormat"
// import * as languageService from "./languageService"



export const moodConversation = async(dialogflowMessage: MessageInterface): Promise<any> => {
    switch (dialogflowMessage.parameters.mood) {
        case "case1":
            dialogflowMessage.responseText = 'It is case 1 '
            break;

        case "case2":
            dialogflowMessage.responseText = 'It is case 2 '
            break;

        default:
            break;
    }

    console.log("responseText:", dialogflowMessage.responseText)

    const responseType =  responseFormat.toGoogleAssistantResponse(dialogflowMessage)
    dialogflowMessage.res.status(200).json(responseType)
}


export const ask4physiological = async(dialogflowMessage: MessageInterface): Promise<any> => {

   dialogflowMessage.event = "event1"
   dialogflowMessage.parameters = {
       name: dialogflowMessage.parameters.name,
       physiological: dialogflowMessage.parameters.physiological,
       value: 123
   }


    const eventMessage =      responseFormat.toEventResponse(dialogflowMessage)
    dialogflowMessage.res.status(200).json(eventMessage)
}

建立好後，我們便可deploy這隻fullfillmentWebhhok到firebase，並將網址丟入dialogflow以觸發。