Dialogflow Webhook полностью заполнен

Question

Я использую обработчик тестирования для вызова намерения 'test' для тестирования полного заполнения webhook.

    'use strict';

    const functions = require('firebase-functions');
    const {WebhookClient} = require('dialogflow-fulfillment');
    const {Card, Suggestion} = require('dialogflow-fulfillment');

    process.env.DEBUG = 'dialogflow:debug'; // enables lib debugging statements

    exports.dialogflowFirebaseFulfillment = functions.https.onRequest((request, response) => {
      const agent = new WebhookClient({ request, response });
      console.log('Dialogflow Request headers: ' + JSON.stringify(request.headers));
      console.log('Dialogflow Request body: ' + JSON.stringify(request.body));

      function welcome(agent) {
        agent.add(`Welcome to my agent!`);
      }
     function testing(agent){
       agent.add(`testing works`);
     }
      function fallback(agent) {
        agent.add(`I didn't understand`);
        agent.add(`I'm sorry, can you try again?`);
      }

      // Run the proper function handler based on the matched Dialogflow intent name
      let intentMap = new Map();
      intentMap.set('Default Welcome Intent', welcome);
      intentMap.set('Default Fallback Intent', fallback);
      intentMap.set('test',testing);  //testing handler
      // intentMap.set('your intent name here', googleAssistantHandler);
      agent.handleRequest(intentMap);
    });

Но при развертывании я получил эту ошибку

    Webhook call failed. Error: UNKNOWN

Ответ

   {
      "responseId": "5dd7232c-e92e-4039-bbc6-9e9bf826bb3e-b4ef8d5f",
      "queryResult": {
        "queryText": "hey i am testing",
        "parameters": {},
        "allRequiredParamsPresent": true,
        "fulfillmentMessages": [
          {
            "text": {
              "text": [
                ""
              ]
            }
          }
        ],
        "outputContexts": [
          {
            "name": "projects/smart-library-55e4d/agent/sessions/4bd5533e-0465-02e4-45d3-1bd3383b21d5/contexts/__system_counters__",
            "parameters": {
              "no-input": 0,
              "no-match": 0
            }
          }
        ],
        "intent": {
          "name": "projects/smart-library-55e4d/agent/intents/0eadac8a-c487-4f7e-92ce-18e64f113e3c",
          "displayName": "test"
        },
        "intentDetectionConfidence": 1,
        "languageCode": "en"
      },
      "originalDetectIntentRequest": {
        "payload": {}
      },
      "session": "projects/smart-library-55e4d/agent/sessions/4bd5533e-0465-02e4-45d3-1bd3383b21d5"
    }