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Kamran Ahmed ee4b7305a2 Adds ByteByteGo guides and links (#106)
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McDonalds Event-Driven Architecture Explore McDonalds event-driven architecture for scalability and efficiency. https://assets.bytebytego.com/diagrams/0266-mcdonald-s-event-driven-architecture.png 2024-02-18 false
real-world-case-studies
Event-Driven Architecture
Case Study

Think you know everything about McDonald's? What about its event-driven architecture?

McDonald's standardizes events using the following components:

  • Event Registry: An event registry to define a standardized schema.
  • Custom SDKs: Custom software development kits (SDKs) to process events and handle errors.
  • Event Gateway: An event gateway that performs identity authentication and authorization.
  • Utilities and Tools: Utilities and tools to fix events, keep the cluster healthy, and perform administrative tasks.

To scale event processing, McDonald uses a regional architecture that provides global availability based on AWS. Within a region, producers shard events by domains, and each domain is processed by an MSK cluster. The cluster auto-scales based on MSK metrics (e.g., CPU usage), and the auto-scale workflow is based on step-functions and re-assignment tasks.

Reference: Behind the scenes: McDonalds event-driven architecture