What is Event Driven Architecture?
An event is any significant state change or specific action that occurs in the system (for example, a user clicks a button, an order is completed, or a device reports a change in a sensor value).
Benefits of an event-driven architecture
Decoupling
Producers and consumers are independent of each other, allowing for greater flexibility and easier system expansion.
Real-time response
The system can react immediately to changes or events.
Scalability
Allows horizontal scaling of individual components (e.g., event consumers).
Flexibility
Easily add new consumers or event handlers without interfering with the existing system.
Resilience
Failure of a single component does not affect the entire system because the components are asynchronous.
Practical applications of EDA
Internet of Things (IoT)
Real-time processing of data from sensors and devices.
E-commerce
Responding to user actions, such as adding a product to a cart or completing a purchase.
Financial systems
Real-time transaction monitoring and fraud detection.
Gaming
Real-time synchronization of game states for multiplayer games.
Microservices
Communication between microservices in large distributed systems.
Event-driven architecture is ideal for systems that require real-time response, scalability, and loose coupling of components. It enables the creation of flexible, resilient and modern systems that easily adapt to changes and requirements.
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