This is incredibly well written and comprehensive. It's a gentle and friendly introduction to both Lambda and Terraform. What a great job. I'll just point out

This is incredibly well written and comprehensive. It's a gentle and friendly introduction to both Lambda and Terraform. What a great job. I'll just point out that if you're using Python, Chalice is excellent and is able to emit Terraform code for all of its resources (https://aws.github.io/chalice/topics/tf.html https://aws.github.io/chalice/topics/tf.html).