Types of event-driven patterns
There are two types of topologies for event-driven patterns:
- Event mediator topology pattern
- Event broker topology pattern
The mediator topology pattern is used when it is required to orchestrate multiple steps that are part of an event with the help of a central mediator. The broker topology is used when it is required to chain multiple events together without the need for a central mediator. The architecture and components of each of these patterns are discussed next.
Event mediator topology pattern
The mediator topology pattern is used to design systems/processes that will need some level of coordination/orchestration in order to process the event. The ideal example of this scenario could be the order processing example, where there are multiple steps, such as order entry, inventory validation, finance validation, and so on. All these steps require some level of orchestration in order to assess whether they can be performed serially or in parallel. There are...
