Build CHATBOTS with Dialogflow (V1 & V2) and NodeJS

BASICS TO ADVANCED. Learn to build Chatbots using the all-powerful NLP platform Dialogflow (V1 &V2) and Node.JS.

Created byFeroz S

Last updated 10/2018

English

What you'll learn

Understand the concepts and different components of Dialogflow - Intents, Entities, Contexts, Actions, Events with examples. Learn step by step from basics to advanced concepts in Dialogflow
Understand the importance of NLP in Bot development by writing bots in NodeJS without using any NLP for skype and facebook platforms and then using NLP (Dialogflow) platform
Learn to write end to end bot from scratch using Dialogflow and NodeJS for Facebook messenger, Android and web applications
Learn to deploy bot web services on cloud (Heroku)
Learn to build an end to end real life bot from scratch using Dialogflow and NodeJS which tells bus arrival time given a bus stop number for Facebook messenger, Android application, A HTML/JS chatbot web application. Learners can use this example as template and build more interesting and useful bots

Course content

4 sections • 31 lectures • 8h 5m total length

Course Promotional Video2:27
Table of Contents5:17
This video lists goes through the topics that will be covered in this course
BOTS and their significance3:56
This topic defines a BOT and understands its significance
Design Considerations for BOTS3:27
You will go through the design aspect of bots. What are the design considerations while creating a bot. A Bot meant for enterprise or niche industry like HR or a CRM should behave differently than a bot made to serve general public for e.g. a taxi booking bot. This lesson highlights such considerations that will help learners give a unique personality to the Bot.

A Simple Skype bot using plain NodeJS - Introduction5:55
This lesson explains the skype framework and a flow diagram on we can write a skypebot using NodeJS and Microsoft Bot framework
A Simple Skype bot using plain NodeJS - Installing the Prerequisites5:20
You will learn the prerequisites needed to write a bot for Skype. This lessons installs all the prerequisite needed.
A Simple Skype bot using plain NodeJS - Code17:35
In this lesson we will write complete code for the Skype bot. Complete source code is attached for you to go through.
A Simple Skype bot using plain NodeJS - Register and Upload on Heroku30:03
In this lesson, you will learn to register the bot on Microsoft development framework portal and also upload on Heroku cloud
A Simple Skype bot using plain NodeJS - Complete Code and Test37:49
In this lesson, we will complete the coding part and test on skype.
A Simple Facebook Messenger Bot - Introduction and architecture6:58
In this lesson, you will go through the facebook messenger architecture and how we will wire up our NodeJS code to Facebook developer portal.
A Simple Facebook Messenger Bot - Code14:06
In this lesson, you will learn the coding part of writing a Facebook bot. The complete source code is also attached in this lesson.
A Simple Facebook messenger Bot - Facebook configurations13:41
A Simple Facebook messenger Bot - Code Complete and Test19:48

Dialogflow - A Case for Natural Language Processing7:26
In this topic, we will build up a good case for NLP. How does NLP aid bot development. We study the shortcoming of building bots without using NLP platform by going through the code written in earlier lesson and ascertain the fact that with NLP, bot development time can be accelerated with positive benefits.
Dialogflow - Introduction. End to End flow.21:17
In this lesson, you will be introduced to Dialogflow and touch briefly its various components. We will also deploy a ready-made weather bot on heroku cloud and test the end to end flow to understand how Dialogflow works.
Also attached is the DialogFlow Agent under resources.
Dialogflow - Understanding Intents with example8:42
In this lesson user will understand the concept of Intents.
The Dialogflow agent that has been used to demonstrate the concept has been attached with this lesson.
Dialogflow - Understanding Context and Entities43:03
In this lesson we will go through with the concept of Contexts In Dialgflow, we write a McDelivery Bot in Dialogflow – a fictitious McDonald Order taking bot which has a slightly complex flow. This bot will clearly explain how contexts can be used in conversation flows that diverge and merge later.
You can download the Dialogflow agent in this lesson
Dialogflow - Understanding Fulfillment and Actions28:44
In this lesson, you will understand the Dialogflow's Fulfillment and Actions.
Dialogflow - (Part 1)A Bus Arrival Time Notifier for Facebook Messenger6:48
Next, we will write an end to end Bus Arrival Time notifier bot using Dialogflow and NodeJS. The Bus Arrival Time API is provided by Singapore's Land Transport Authority https://www.mytransport.sg/content/mytransport/home/dataMall.html) . The Bot uses the API to fetch live Bus arrival timings at a bus stop. We build this first for Facebook messenger.
Dialogflow - (Part 2)A Bus Arrival Time Notifier for Facebook Messenger33:32
Next, we will write an end to end Bus Arrival Time notifier bot using Dialogflow and NodeJS. The Bus Arrival Time API is provided by Singapore's Land Transport Authority https://www.mytransport.sg/content/mytransport/home/dataMall.html) . The Bot uses the API to fetch live Bus arrival timings at a bus stop. We build this first for Facebook messenger.
Dialogflow - (Part 3)A Bus Arrival Time Notifier for Facebook Messenger23:46
Next, we will write an end to end Bus Arrival Time notifier bot using Dialogflow and NodeJS. The Bus Arrival Time API is provided by Singapore's Land Transport Authority https://www.mytransport.sg/content/mytransport/home/dataMall.html) . The Bot uses the API to fetch live Bus arrival timings at a bus stop. We build this first for Facebook messenger.
DialogFlow V2. Introduction2:42
Dialogflow : Using Dialogflow V2 API. BusArrivalTime BOT for FB Messenger13:03
This tutorial explains the same BusArrivalTime notifier bot but with Dialogflow V2 API
Dialogflow -HTML/JS Chatbot for Bus Arrival Time Notifier26:20
In this lesson we will continue with the same bot, however will write an chatbot with HTML and Javascript.
Dialogflow -Android app for Bus Arrival Time Notifier25:57
In this lesson we will create an Android app, that talks to the same backend created in earlier lesson that gives bus arrival time given a bus stop.
Dialogflow - Understanding Webhook for Slotfilling36:57
In this lesson you will learn how to use Webhook with slotfilling feature in Dialogflow. Here we will create a BOT in Dialogflow and fulfillment in NodeJS. THis example will help you understand how slotfilling can help in fetching details and filling parameters at the backend.
DialogFlow V2. Webhook Slotfilling4:44
This tutorial explains webhook slotfilling using DialogFlow V2 API
Dialogflow - Understanding how to validate user input at backend22:54
In this lesson, you will learn how to validate user input in the fulfilment web service - We create a BOT in Dialogflow and fulfillment in NodeJS.
DialogFlow V2. Validation3:22
This tutorial explains Validations using Dialogflow V2 API
DialogFlow V2. RichMessages on Facebook5:43

Requirements

Javascript /NodeJS

Description

Whether you are a novice would be bot developer or have just started your journey in bot development, this course will smoothen your journey by explaining you the bot development process clearly with examples using Dialogflow and NodeJS.

This course teaches invaluable concepts of Dialogflow that are essential for creating bots for Facebook messenger, Skype, web and Android platform.

Difficult concepts in Dialogflow like Webhook slot filling, validation of user inputs during backend fulfillment, and concepts like Entities, Contexts, Actions, Events are explained with live examples in NodeJS for better clarity which otherwise are not well documented on Dialogflow.comEach topic is covered in top down fashion with practical, hands-on examples.

The later part of the course covers some advanced concepts. A real-life Bus Arrival time bot is written in Node JS using Dialogflow for Facebook messenger, as an Android app and also as a chat enabled web application. The Bus Arrival time bot chats with the user and accepts a parameter called BusStop Number and provides the user the estimated time of arrival of all the busses at that stop. The Bus Arrival Time API is provided by Singapore's Land Transport Authority. The Bot uses the API to fetch live Bus arrival timings at a bus stop. Complete source code is provided for the learners to learn how an end to end bot is created using Dialogflow and NodeJS.

UPDATE: Examples using Dialogflow V2 has been added recently. I will keep adding more examples using Dialogflow Version 2.

Who this course is for:

Anyone who wants to learn bot development and dialogflow

Build CHATBOTS with Dialogflow (V1 & V2) and NodeJS

What you'll learn

Explore related topics

Course content

Introduction4 lectures • 15min

Setup NodeJS and Heroku CLI1 lecture • 5min

Building bots without using NLP.(Skype and Facebook messenger)9 lectures • 2hr 31min

Dialogflow - A Complete Tutorial with examples17 lectures • 5hr 15min

Requirements

Description

Who this course is for: