If your lambda is just returning before expected, check the default Timeout in template.yaml, most likely you will need a bigger number there
Commands:
sam init
In case you don’t know where to start, that will walk you thru the process and download a sample app for ya
sam build
(pack the latest changes, it will rerun anything new you put in requirements.txt as well
sam local invoke “YourFunctionName” -e events/yourevent.json
run your function locally, with your own event
sam deploy
put it out there