Python 100 project #42: AWS Data Post to Slack – Billing

Sometimes, I forgot to stop the AWS instance, and I’m lazy to check the running instance for a while. Then it suddenly comes clear when I receives the email from AWS for the billing of the previous month.

To avoid this surprise, I created Lambda function to post the estimated cost of the period every morning to the slack.

 

Output Example:

 

Here is the (main handler) code: