Microservices vs. Monoliths

Microservices or Monolith? Discover the strengths, the trade-offs, and the real-world lessons every developer must know before deciding how to start a project. Microservices and Event-Driven Architecture Introduction to the Module: Microservices-Based Architecture Why Study Microservices? What You Will Learn in This Module Why This Module Matters Our Goal Monolithic Systems What Is a Monolithic System? Characteristics Teamwork Inside a Monolith Practical Benefits Technological Constraints Deployment Risks Conclusion About Monoliths What Are Microservices ...

December 4, 2025

System Design

In this article, we explore how System Design goes far beyond diagrams, serving as a practical framework for reasoning, justifying decisions, and building scalable, well-structured systems. Table of Contents System Design Introduction Understanding the Core Concepts Introduction to System Design What is System Design? Why is System Design Important? Working with Approximations Example of System Design Reasoning System Design in Big Techs Why Big Techs Use System Design in Interviews Why Many Candidates Fail The Importance of Deduction and Approximation System Design in the Real World Why System Design Is Essential in Practice Justifications and Trade-offs The Six Elements of System Design Introduction Six Fundamental Elements of System Design 1. Requirements Gathering 2. Capacity Planning 3. Data Modeling 4. API Modeling 5. Architecture Design 6. Exploration & Justification (Trade-offs) The Value of the Process Requirements — Deep Dive Core Features and Domain Support Features Functional vs Non-Functional Requirements Next Steps System Design Introduction In this new module, the focus is on System Design, an essential subject for anyone looking to advance in technology and system architecture. ...

December 4, 2025

Messaging Systems Compared: RabbitMQ vs. Apache Kafka

This article provides a clear and concise comparison between RabbitMQ and Apache Kafka to help you choose the most suitable messaging solution for your system architecture. Table of Contents Objective History RabbitMQ Apache Kafka Solution Features and Comparisons RabbitMQ Features Kafka Features Consumption Strategy (Pull vs Push) Comparative Use Cases Deployment Objective The objective of this article is to clarify doubts regarding which messaging system is most appropriate when implementing your applications. It analyzes RabbitMQ and Apache Kafka. ...

December 2, 2025

Rabbit MQ

When you want to develop highly scalable distributed systems in several programming languages and one should communicate with others, it’s necessary an architecture with messaging queue systems and RabbitMq is one of the most used. Table of Contents What is Messaging RabbitMQ How RabbitMQ Works AMQP Protocol ACK Exchange and Routing Key FANOUT DIRECT TOPIC HEADERS Channel Publishing Listener Stream What is Messaging Messaging is a communication mechanism between systems where one publishes the message and any other as a client receives the same, thus simplifying a lot in the development of distributed systems. ...

December 2, 2025

REST API - Design Guidelines

Everything you need to know to get started with REST in just a few minutes. REST API is the technology that transformed the way systems communicate with each other. It enables applications, websites, servers, and devices to exchange data quickly, securely, and universally — forming the foundation of modern apps, powerful integrations, and digital experiences that work anywhere. Index What Is an API? What Is a REST API? Key REST Concepts Resources Main HTTP Methods Data Formats 🔧 RESTful API Characteristics Stateless Client–Server Architecture Cacheability Uniform Interface Layered System General Recommendations Use Plural Nouns in URLs Keep the Base URL Simple and Intuitive Avoid Verb-Based URLs Use HTTP Verbs to Operate on Resources Resource Listing and Detail Retrieval Associations Use Query Parameters to Reduce URL Complexity Error Handling Versioning Partial Response Pagination Actions Not Involving Resources Multi-Format Support Attribute Naming Attributes in Request/Response Bodies Attributes in URLs (Query Parameters) Attributes in Headers References What Is an API? An API (Application Programming Interface) is a set of standards and protocols that allow different systems or users to interact with an application. It enables clients to access the software’s features and services without needing direct access to its internal implementation. ...

November 17, 2025