Alternate Implementations

The preceding example is merely one, albeit common, example of how you can implement a fan-out pattern. There are many ways to turn one event or trigger into multiple parallel processes. Some options for this are specific to the cloud service you're using. Since the vast majority of my cloud experience is with AWS, I'll cover some alternative architectures. These may be portable to other cloud providers with corollary service offerings under different names.

Using notifications with subscriptions

My preceding example was controlled by a master receiver function, which was invoked on some trigger and then performed the work of calling the worker processes manually. One alternative is...