As an example, consider the processing flow when an entity receives a command. In some cases, it is necessary to retrieve reference data to validate the incoming request, e.g., validate customer id, validate product id, etc.
Performing a reference data lookup will often require hitting a database. These types of operations will interrupt the entity processing flow while it waits for the reference data lookup.
The assumption is that a future or promise will be used, depending on the language. It will also be necessary to handle different targets, such as views, other ASLS services, and external services.
It would be great if these types of operations are handled/abstracted by Akka Serverless.