Final Code

Dummy responses are great but we want to fetch our data from a database since we can't add everyone at the entity values.

1.Click on fulfilment on left menu

2.In the Inline Editor(Powered by Cloud Functions for Firebase) you can add the final code below

3. Click the deploy button.

Firebase deploy button

IMPORTANT: Make sure you have your own Database URL, instead of: https://gdg-cloud-fc257.firebaseio.com/

index.js

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
var admin = require(firebase-admin); 
  admin.initializeApp({ databaseURL: `https://gdg-cloud-fc257.firebaseio.com/`
});
var db = admin.database();
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(`Hello! Welcome to the GDG Cloud directory conversational app. Would you like to find a lead by 1. Name,  2. Skill`);
}

function fallback(agent) {
  agent.add(`Sorry but could you say that one more time?`);
  agent.add(`I missed what you said. Say it again?`);
}

function getSearchTerm(agent) {
  if (agent.parameters.search_terms == 1) {
    agent.add(`What's the GDG Cloud lead's name?`);
  } else {
    agent.add(`Which skill are you looking for?`);
  }
}

function searchName(agent) {
  var results = db.ref("myDatabase");
  results
    .orderByChild("Name")
    .startAt(agent.parameters.person_name)
    .endAt(`${agent.parameters.person_name}~`)
    .on("value", function(snapshot) {
      snapshot.forEach(function(data) {
          console.log(`The GDG Cloud lead's email is ${data.val().Email}`);
        agent.add(`The GDG Cloud lead's email is ${data.val().Email}`);
      });
    });
}
​
function searchSkill(agent) {
  var scoresRef = db.ref("myDatabase");
  scoresRef
    .orderByChild("Skill")
    .equalTo(agent.parameters.person_skill)
    .on("value", function(snapshot) {
      snapshot.forEach(function(data) {
        agent.add(
          "The GDG Cloud lead expert at " +
            data.val().Skill +
            " is " +
            data.val().Name
        );
      });
    });
}
​
let intentMap = new Map();
intentMap.set('Default Welcome Intent', welcome);
intentMap.set('Default Fallback Intent', fallback);
intentMap.set("Default Welcome Intent - search", getSearchTerm);
intentMap.set("Default Welcome Intent - search - get_name", searchName);
intentMap.set("Default Welcome Intent - search - get_skill", searchSkill);
agent.handleRequest(intentMap);
} );

package.json

{ "name": "dialogflowFirebaseFulfillment", "description": "This is the default fulfillment for a Dialogflow agents using Cloud Functions for Firebase", "version": "0.0.1", "private": true, "license": "Apache Version 2.0", "author": "Google Inc.", "engines": { "node": "~6.0" }, "scripts": { "start": "firebase serve --only functions:dialogflowFirebaseFulfillment", "deploy": "firebase deploy --only functions:dialogflowFirebaseFulfillment" }, "dependencies": { "actions-on-google": "2.0.0-alpha.4", "firebase-admin": "^5.4.2", "firebase-functions": "^0.5.7", "dialogflow": "^0.1.0", "dialogflow-fulfillment": "0.3.0-beta.3" }}

And the package.json tab:

package.json

{ "name": "dialogflowFirebaseFulfillment", "description": "This is the default fulfillment for a Dialogflow agents using Cloud Functions for Firebase", "version": "0.0.1", "private": true, "license": "Apache Version 2.0", "author": "Google Inc.", "engines": { "node": "~6.0" }, "scripts": { "start": "firebase serve --only functions:dialogflowFirebaseFulfillment", "deploy": "firebase deploy --only functions:dialogflowFirebaseFulfillment" }, "dependencies": { "actions-on-google": "2.0.0-alpha.4", "firebase-admin": "^5.4.2", "firebase-functions": "^0.5.7", "dialogflow": "^0.1.0", "dialogflow-fulfillment": "0.3.0-beta.3" }}