[For beginners] How to create an Alexa custom skill and link your account with Cognito's user pool

Introduction

To create a skill that works with an external service that requires authentication with Alexa's custom skill, I had to store the credentials to the external service somewhere. I thought it would be difficult to prepare a server to store authentication information by myself, so I gave up building custom skills, but using the AWS Cognito service, it is relatively easy to build even at the individual level. understood. However, when I first started making it, there were few pages that I could refer to and I had a hard time building it, so I summarized the procedure so that I could use it as my own memorandum.

What to build

Build Alexa custom skills using data from external services that require authentication

• However, this procedure does not go to the point of linking to external services.

Environment to use, etc.

--Alexa custom skills

• Lambda（Python3.8）
• Cognito

Procedures and links

1. Create a custom skill call part with Alexa 2. Create a function called from Alexa in Lambda Python 3.8 3. Completion of custom skills by linking Lambda and Alexa 4. Create a user pool to save authentication information with Cognito 5. Fixed Alexa and Cognito to be account-linked so that credentials can be used in Lambda functions