Event-Driven Architecture in Node.js

Event Driven Architecture (EDA) has emerged as a powerful paradigm for building scalable, responsive, and loosely coupled systems. In Node.js, EDA plays a pivotal role, leveraging its asynchronous nature and event-driven capabilities to create efficient and robust applications. Let’s delve into the intricacies of Event-Driven Architecture in Node.js exploring its core concepts, benefits, and practical examples.

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Key Components in Node.js Event-Driven Architecture:

1. EventEmitter Module:

Central to Node.js’ event-driven architecture is the EventEmitter module, empowering the creation of objects capable of emitting and handling events. This module stands as a foundational element for integrating event-driven patterns into applications. Key functionalities of the EventEmitter include:

Event Registration:
Objects inheriting from EventEmitter can register event listeners for specific events they wish to track. This involves associating a function (listener) with a designated event name.

Event Emission:
Utilizing the emit() method within the EventEmitter, instances can emit events, indicating particular actions or state changes. This triggers…