I definitely wouldn't start sharing the URL around. But this isn't the end goal. The end goal is to host your server code on AWS Lambda and use the endpoint tha

I definitely wouldn't start sharing the URL around. But this isn't the end goal. The end goal is to host your server code on AWS Lambda and use the endpoint that provides. ngrok's exposing of a local server just makes it easier for you to develop more quickly. Otherwise, you'd have to deploy any changes to Lambda, hit your bot's endpoint, and then check the cloud logs for any bugs. I was doing this for awhile - it really slows down development. I'm writing another post on AWS Lambda and Zappa next - hope that's useful!