Express.JS integration sample

samples/express-js-integration/package.json

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+{
+  "name": "Test_Agent",
+  "version": "0.0.1",
+  "description": "Test Google Assistant Agent webhook",
+  "main": "server.js",
+  "author": "Abhinav Tyagi, New Delhi, India",
+  "dependencies": {
+    "dialogflow-fulfillment": "^0.4.1",
+    "body-parser": "^1.18.3",
+    "express": "^4.16.3",
+    "actions-on-google": "^2.2.0"
+  }
+}

samples/express-js-integration/server.js

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+'use strict';
+
+const {WebhookClient} = require('dialogflow-fulfillment');
+const express = require('express');
+const bodyParser = require('body-parser');
+
+const app = express();
+app.use(bodyParser.json());
+app.use(bodyParser.urlencoded({extended: true}));
+
+
+
+function welcome (agent) {
+    agent.add(`Welcome to Express.JS webhook!`);
+}
+
+function fallback (agent) {
+    // console.info(`unknown -- ${agent.originalRequest}`);
+    agent.add(`I didn't understand`);
+    agent.add(`I'm sorry, can you try again?`);
+}
+
+function WebhookProcessing(req, res) {
+    const agent = new WebhookClient({request: req, response: res});
+    console.info(`agent set`);
+
+    let intentMap = new Map();
+    intentMap.set('Default Welcome Intent', welcome);
+    intentMap.set('Default Fallback Intent', fallback);
+// intentMap.set('<INTENT_NAME_HERE>', yourFunctionHandler);
+    agent.handleRequest(intentMap);
+}
+
+
+// Webhook
+app.post('/', function (req, res) {
+    console.info(`\n\n>>>>>>> S E R V E R   H I T <<<<<<<`);
+    WebhookProcessing(req, res);
+});
+
+app.listen(8080, function () {
+    console.info(`Assistant webhook listening on port 8080!`)
+});