Nook Number

Sometimes I spend a little bit more each month than I'm supposed to.

This function texts me every day with the balance on my main credit card. That's it.

Design

The code & its dependencies live in AWS Lambda, and is scheduled through Amazon Eventbridge.

I use the Plaid API to get my account information. It's free since I linked <5 accounts, and Nook Number is only for personal use. Twilio's free tier (Programmable SMS) is used for sending the text message.

Forking

Interested in using this yourself?

API Services

Create an account with Plaid and navigate to your Development Dashboard to fill in some of the environment variables listed below.

Create an account with Twilio and create a free Programmable SMS number.

Environment Variables

My personal information and data are set in environment variables in AWS Lambda.

Variable	Description
PLAID_CLIENT_ID	Available through Plaid Development Dashboard.
PLAID_SECRET	Available through Plaid Development Dashboard.
PLAID_PUBLIC_KEY	Available through Plaid Development Dashboard.
PLAID_ACCESS_TOKEN	Clone the Plaid Quickstart Node project. Run the server with your own variable values and environment as development instead of sandbox. Then enter the information for the account you wish to track and copy the access token. This token does not expire but you can also regenerate it.
TWILIO_ACCOUNT_SID	Available through your Twilio console.
TWILIO_AUTH_TOKEN	Available through your Twilio console.
FROM_NUMBER	The phone number you generated in Twilio.
TO_NUMBER	Your personal phone number.