An Introduction to decision-making guidance to AWS event-driven architecture.

1. Nirmalmahesh Subramani
A Deep-Dive Into Event
Driven Architecture
1

2. Agenda
 What is EDA?
 Coupling
 Enterprise Integration Patterns
 Request Response Model
 Point to Point Model ( Queue )
 Point to Point Model ( Router )
 Async Message Router
 Choreograph
 Orchestration
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3. What is Event Driven
Architecture?
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4. Coupling
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Measure of independent variability between connected systems

5. Enterprise Design
Patterns
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6. Sync Request Response Model
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• Low Latency
• Simple
• Fail Fast
Advantages
Disadvantages
• Receiver Failure
• Receiver Throttled

7. Asynchronous Point to Point Model ( Queue )
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Advantages
• Decreases temporal coupling
• Receiver controls consumption rate
• Dead Letter Queue for failures
• Only one receiver can receive one message
Disadvantages
• Response correlation
• Backlog recovery time

8. Asynchronous Point to Point Model ( Router )
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Disadvantages
• Increases Location Coupling
• Sender maintains the logic
• Sender complexity increase with time

9. Amazon EventBridge
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Event Bus Schema Registry Pipes
Scheduler

10. Event Bus
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11. Event Bus Event
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12. Event Bridge Support 20+ AWS services and API Destinations
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13. Choreograph events between different
domains
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14. Orchestrate a business domain within a
domain, resulting in a published event
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15. Step Funtions
 The workflows you build with
step functions are called state
machines and each step of your
workflow is called state
 When you execute your state
machine, each move from one
state from another state is state
transition
 You can reuse components,
easily edit the sequence of
steps, or swap out the code
called by task states as your
needs change
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16. Step Function Integration Types
Optimized Integration Types
• Customized to simplify the usage of
17 AWS Services
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AWS SDK Integrations
• Customized to simplify the usage of
17 AWS Services
Supported Integration Patterns
• Request Response
• Wait for callback (.waitForTaskToken)
• Run a job(.sync)
Supported Integration Patterns
• Request Response
• Wait for callback (.waitForTaskToken)

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Thank you