GoogleHomeに話しかけて検索結果をブラウザに表示させる　❺Google検索で一番上のページを表示させる

 url: "http://www.google.com/search?btnI=I%27m+Feeling+Lucky&lr=lang_ja&ie=UTF-8&oe=UTF-8&q="+keyword

const functions = require("firebase-functions");//クラウド関数を作成してトリガを設定するためのFirebase SDKのクラウド関数。
const admin = require("firebase-admin");//Firebase Realtime DatabaseにアクセスするFirebase Admin SDK
admin.initializeApp(functions.config().firebase);

exports.hoyatalk = functions.https.onRequest((request, response) => {
    const dialogflow_param = request.body.queryResult.parameters.keyword;  //Dialogflowから来てるパラメータを受けとる 
    const dialogflow_user_say = request.body.queryResult.queryText; 
    const keyword = dialogflow_param.join(" ");

    const nd = new Date();
    nd.setTime(nd.getTime() + 1000*60*60*9);//UTC→JSTに変換(9h追加)
    const year = nd.getFullYear(),month = nd.getMonth()+1,day =nd.getDate(),hour = nd.getHours(),minute = nd.getMinutes();
    const time = year + "年" + month + "月" + day + "日" + hour +  "時" + minute + "分" ;

    const hoyapath = "/hoya/boya"
    const musubipath = "/musubi/maru"

    admin.database().ref(hoyapath).once("value", function(snapshot) { 
        response.setHeader("Content-Type", "application/json"); //Dialogflowに情報を返す
        response.send(JSON.stringify({"fulfillmentText": "はい、"+keyword+"の検索結果を表示します"}));
        admin.database().ref(hoyapath).push({url: "http://www.google.com/search?btnI=I%27m+Feeling+Lucky&lr=lang_ja&ie=UTF-8&oe=UTF-8&q=" + keyword, param_value:keyword , timestamp: time });
        admin.database().ref(musubipath).set({timestamp: time, tx:keyword , url: "http://www.google.com/search?btnI=I%27m+Feeling+Lucky&lr=lang_ja&ie=UTF-8&oe=UTF-8&q=" + keyword });
    });
});

firebase deploy --only functions