Scalable web applications | HTTP | REST API | N-tier Applications | Beginner

Welcome to the System Design Series by @mukeshkuiry! 🚀

In the previous post, we delved into the crucial aspects of scalable web applications, exploring DNS and Load Balancers. Today, let's continue our journey by unraveling the mysteries of N-tier applications, HTTP, REST, and Stream Processing.

N-tier Applications: Scaling Beyond the Basics

N-tier applications, also known as distributed applications, go beyond the conventional three-component model. These applications incorporate various elements such as caches, message queues, load balancers, search servers, and components for processing extensive data. Platforms like Instagram, Facebook, and Uber exemplify the complexity of N-tier applications.

HTTP & REST: The Backbone of Web Communication

HTTP - HyperText Transfer Protocol

HTTP, the backbone of web communication, dictates how messages are formatted, sent, interpreted, and responded to. API endpoints, acting as gateways, facilitate HTTP requests for server access. Let's take a closer look at HTTP:

GET /resource HTTP/1.1
Host: www.example.com

REST - Representational State Transfer

REST, an architectural style for web services, establishes best practices for data sharing between clients and servers. It emphasizes simplicity in interfaces and scalability of components. RESTful APIs, implementing REST architecture, optimize client-server communication using HTTP methods like GET, DELETE, POST, and PUT.

POST /create-resource HTTP/1.1
Host: api.example.com
Content-Type: application/json

{
  "name": "New Resource",
  "value": 42
}

HTTP and REST play pivotal roles in crafting efficient client-server interactions within system design.

Stream Processing: Real-Time Data Magic

Stream processing is a programming architecture focused on real-time processing of continuous data streams. Tools like Kafka, Storm, and Flink empower developers to handle dynamic data flows seamlessly.

As we conclude this segment, remember that mastering these concepts is crucial for designing robust and scalable web applications. Stay tuned for more intriguing content!

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