sawfishman

AWS lambda is a hosted functions as a service and is about triggering code from events. Dapr is more like a library that runs next to your code as a sidecar providing you capabilities including being able to be triggered by events, but has other APIs such as state, secrets, pub/sub that are common when building apps when running on platforms like Kubernetes

Would be interested whether you spent any time getting Istio to work with Dapr and your experience?

You can find the book here https://aka.ms/dapr-ebook