ReferralBot

Integrated An Amazon Lex Chatbot With Aws Lambda , Whatsapp Messenger , Creating A Responsive Conversational Interface

We All Are Tackling From This Question Every Day:-

• Applying for a new job with a referral?
• But , Not knowing how to ask for a referral?
• Irritated to write the same referral message again and again?

Think of a WhatsApp bot, where you only need to give the details of the Name of the person, Job ID, company name, past experience, achievements, to get a personalized referral message.

Goals to achieve the necessary Output:

1. Create a Lambda function.
2. Create a bot.
3. Build and test the bot.
4. Integrate with Whatsapp.

Step1 — Create a Lambda function

• Sign in to the AWS Management Console and open the AWS Lambda console at https://console.aws.amazon.com/lambda/
• Choose to Create function.
• Select Author from scratch.
• Type the name ReferralGenerator.
• For the Runtime, choose the latest version of Node.js.
• For the Role, choose Create new role from templates.
• Enter a new role name EventRole.
• Choose Create function.

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• Test the Lambda Function Using Sample Event Data.
• On the function page, in the list of test events, choose Configure test events.
• Choose Create new test event,In the Event name field, enter a name for the event Test.
• Choose to Create.
• Choose Test and Lambda runs your Lambda function.

Step 2 — Create a bot

• Go to services console, type lex and select Amazon Lex.
• Select Get Started and then select Create.
• On the Create your Lex bot page, choose Custom bot.

• App name: ReferralBot
• Output voice: Salli
• Text Only
• Session timeout: 5 minutes.
• Keep the remaining fields as default ones and COPPA to No.
• Select Create.

Now, create the ReferralBot intent , an action that the user wants to perform, with the minimum information needed. You add slot types for the intent and then configure the intent later.

• In the Amazon Lex console choose Create new intent.
• In the Create intent dialogue box, type the name of the intent referralBotIntent, and then choose Add.
• To create slot types
• In the left menu, choose the plus sign (+) next to Slot types.
• Create according.
• Give some sample utterances. For this, you can give start so that all the slots which you entered will be asked in line.
• In Lambda initialization and validation Leave the default setting.
• In Confirmation prompt, you can Leave the default setting or provide a confirmation string.
• In Fulfillment Choose AWS Lambda function and select the earlier created ReferralProcessor lambda function.
• Choose ok to the Add permission to Lambda function dialog box.
• Leave None selected.

Step 3 — Build and test the bot

• To build the ReferralBot bot, choose Build.
• It can take some time to complete the build.
• In the Test Bot window, start communicating with your Amazon Lex bot.
• After testing if your bot works fine click the publish button.
• Select Alias BETA.

Step 4 — Integrating with WhatsApp

• Create an account on Twilio

• Verify your account.

• After all verifications, you will be asked few questions.

• Which Twilio product are you here to use? WhatApp

• What do you plan to build with Twilio? Contact center

• How do you want to build with Twilio? With code

• Click on continue

• Activate your sandbox by accepting terms and conditions.

• Now you need to send a whatsapp message to the given number with the code mentioned.

• Click on next send a one-way messaging.

• You can send a dummy message to your whatsapp by click on make request.

• Click on the Node js code and save the Account Id and auth token. If you couldn’t find it there, open settings and there you go.

• Click on next.

• Open AWS Lex, and click on publish, and go to channels. On the left side, you can find Twilio SMS.

• Give all the details, and Account SID, Auth key with the values which you saved earlier.

• Click on activate, you will get a endpoint URL. Paste that in Twilio sandbox.

• Paste that in this field: When a message comes in, and click on save.

• Now go to whatsapp and start your conversation with Bot!!