lazydragon / amplify-chatbot

Prerequisit

• own a global AWS account

Setup

install npm packages

npm install

configure amplify

# run configuration command
amplify configure

# then follow the instructions to
# 1. log in to AWS
# 2. create new user for amplify
# 3. configure your AK/SK

init amplify

# init amplify
amplify init
# 1. choose your favourite IDE
# 2. choose javascript
# 3. choose react
# 4. leave source directory as default(src)
# 5. leave build directory as default(build)
# 6. leave build command as default
# 7. leave start command as default
# 8. yes on using an AWS profile, and choose the profile you created in amplify configuration step

configure static hosting

# configure static hosting on AWS
amplify add hosting
# choose either DEV or PROD depending on your requirements
# use default options for the rest of the choices

configure auth

ampliy add auth
# choose the default configuration 

configure chatbot

• You have to manually create a chatbot on AWS console.
• Follow the instructions in the link to create a bot from blueprints Booktrip https://docs.aws.amazon.com/lex/latest/dg/gs-console.html
• config your bot name, alias and region in src/Config.js, e.g.

const bot = {
    name: "booktrip_andrew",
    alias: "latest",
    region: "us-east-1"
} 

configure api

amplify add api
# 1. choose rest
# 2. input a friendly name, path
# 3. choose create a new lambda function
# 4. give your function a friendly name
# 5. choose CRUD from ddb
# 6. choose create a new ddb table
# 7. name your ddb table 'reservations' (this name must match the api lambda configuration)
# 8. add one string column called "id"
# 9. choose id as the partition key
# 10. no sort key
# 11. no global secondary index
# 12. skip local lambda editing
# 13. restrict api access to authenticated user only with read access
# 14. no for adding more path

# copy src/functions/index.js to the amplify/backend/function/{your_function_name}/src/index.js

deploy your project on AWS

amplify publish

chatbot configuration (manual)

access

For your user to have access to the chatbot, we will use IAM roles issued by your cognito authentication. To enable the role access to chatbot:

• go to AWS console IAM,
• find the Auth role (not the unauth role) you created,
• add AmazonLexRunBotsOnly policy to the role

config chatbot function

• create a lambda on AWS console (python2.7)
• copy codes in src/functions/chatbot.py into lambda function
• give lambda function access to dynamodb(reservations)

add lambda hook

• config your car & hotel intents, hook the chatbot lambda function you just created to validation & fullfillment
• build your bot
• publish it