The last time I was running bare Lambda function. It was fun, but no persistence was touched. Now if we are going to track real expenses we have to persist data somewhere. One of the solutions made for that is to use DynamoDB table.
When reading through the whole internet lately I encountered AWS hype. 2015 I remember there was my first contact with this Amazon services but I skipped that somehow and forgot about my account. Things changed when I learned that this portal allows you not only to host machines and real linux systems but Lambdas. The code is here, check my Github.