Published articles
vol. 2 num. 34 - 2025 Nov 10
Developer Technologies
When Trust is Faster: The Role of Optimistic Locking in High Scalability Architectures
The article explores the use of Optimistic Locking as an effective strategy to improve performance and scalability in web and mobile applications. Unlike Pessimistic Locking, which locks resources and can cause contention, Optimistic Locking allows for multiple simultaneous transactions, assuming that conflicts are rare. The technique is detailed in implementation steps, exemplified in C#, and is recommended for scenarios with a low frequency of writes.
vol. 2 num. 33 - 2025 Oct 15
Developer Technologies
When a Relational Database is Not Enough: The Role of KVS in Modern Architecture
This article explores the growing role of Key-Value Stores (KVS) as alternatives to relational databases, especially in contexts that require scalability, flexibility, and high performance. Although relational databases are useful, their limitations in high-demand scenarios are evident. KVS offer simplicity and fast access to data, making them ideal for applications that require low latency and high availability.
vol. 2 num. 32 - 2025 Oct 01
Developer Technologies
Event-Driven Messaging: Implementing RabbitMQ, Kafka, and Azure Service Bus in .NET
This article provides an introduction to event-driven messaging, highlighting its importance in distributed systems for asynchronous communication. Three main solutions are explored: RabbitMQ, Apache Kafka, and Azure Service Bus, all applicable in .NET. The text includes guidance on installation and practical examples of publishing and consuming messages for each solution.
vol. 2 num. 31 - 2025 Sep 15
Developer Technologies
Idempotence in Distributed Systems: Ensuring Consistency in APIs and Messaging
This article addresses idempotence in distributed systems, highlighting its importance in APIs and messaging. Idempotence ensures that operations can be repeated without changing the result, avoiding inconsistencies, especially in failure situations. The text presents basic concepts, design principles in REST APIs, and practical examples in C# to implement idempotent methods, both in APIs and in message consumers using RabbitMQ.
vol. 2 num. 30 - 2025 Sep 01
Developer Technologies
CQRS and OpenAI: architectural patterns for command-oriented systems and intelligent responses.
This article explores the combination of CQRS (Command Query Responsibility Segregation) and OpenAI to develop more robust and efficient systems. CQRS separates read and write operations, allowing for performance optimization and scalability. The integration with OpenAI facilitates the automation of commands and the generation of intelligent responses, enhancing the user experience. The text discusses benefits, such as greater efficiency, and challenges, such as complexity and costs.
vol. 2 num. 29 - 2025 Aug 18
Developer Technologies
Use of out and in in Generic Interfaces: Covariance and Contravariance
This article explores the use of covariance and contravariance in generic interfaces in C#, clarifying the `out` and `in` modifiers. It initially defines the concept of generic interfaces, followed by an analysis of the principles of covariance, which allows the use of derived types, and contravariance, which enables the use of base types.
vol. 2 num. 28 - 2025 Aug 04
Developer Technologies
Serverless with Minimal APIs in .NET: Productivity and Scalability in the Same Package
This article explores the integration of the serverless model with Minimal APIs in .NET, highlighting its advantages in terms of simplicity, scalability, and efficiency in development. Minimal APIs allow for rapid creation of RESTful APIs with less code, making testing and maintenance easier. Their adoption, alongside the serverless model, offers a broad set of benefits such as increased productivity, automatic scalability, and the potential for cost reduction.
vol. 2 num. 27 - 2025 Jul 21
Developer Technologies
Mastering SpinLock in Concurrency Control in .NET
This article explores the use of SpinLock in concurrency control in .NET applications, highlighting its effectiveness in high-performance and low-latency scenarios. The SpinLock is a lightweight locking structure that allows a thread to actively wait for a lock, being more efficient than traditional locks when the wait time is short.
vol. 2 num. 26 - 2025 Jul 07
Developer Technologies
Redis and DynamoDB: Intelligent Caching and Scalable Persistence in Microservices
This article explores the integration of Redis and DynamoDB to optimize persistence and performance in microservices architectures. The combination of Redis's in-memory cache with DynamoDB's scalability addresses challenges such as latency in database calls and data fragmentation. The article discusses caching strategies, such as cache invalidation and performance monitoring, and presents practical examples in C#.
vol. 2 num. 25 - 2025 Jun 23
Developer Technologies
Monorepo vs. Monolith: A Comparative Study in .NET Applications
This article explores the monorepo and monolith software development approaches, focusing on their characteristics, advantages, and disadvantages. The monorepo centralizes multiple projects in a single repository, facilitating dependency management and collaboration, but it can lead to scalability and complexity challenges.
vol. 2 num. 24 - 2025 Jun 16
Developer Technologies
Feature Flags in .NET Microservices: Impacts on Quality and Delivery Speed
This article explores the implementation and benefits of Feature Flags in software development, especially in .NET microservices. Feature Flags allow for the activation or deactivation of functionalities in real-time, promoting agility and security in deliveries. The text discusses how they work, provides practical implementation examples, and highlights their benefits, such as safe deployment, A/B testing, and reversibility.
vol. 2 num. 23 - 2025 Jun 09
Developer Technologies
Depth Control in GraphQL APIs with .NET: A Secure Approach to Mitigating DoS Attacks
This article provides an introduction to GraphQL, emphasizing its advantages over REST APIs and the security challenges, particularly regarding denial of service (DoS) attacks. It proposes the implementation of depth controls and complexity limits in GraphQL APIs using .NET to mitigate these risks. Through code examples, the article illustrates how to limit the depth of queries and calculate complexity.
vol. 2 num. 22 - 2025 Jun 02
Developer Technologies
Combined Application of Flyweight and Composite Patterns in Systems with Many Objects
This article explores the combined application of the Flyweight and Composite design patterns in software development, highlighting their importance in optimizing performance and memory management in complex systems. The Flyweight pattern minimizes memory usage by sharing objects with common states, while the Composite pattern facilitates the manipulation of hierarchical structures.
vol. 2 num. 21 - 2025 May 26
Developer Technologies
Evaluation of the Use of PLINQ for Parallelization of LINQ Queries
This article discusses the use of PLINQ (Parallel LINQ) for the parallelization of LINQ queries in C#. PLINQ allows the execution of operations on large collections more efficiently by leveraging multiple processor cores, resulting in significant performance improvements. The advantages, such as performance and scalability, and disadvantages, such as the overhead of parallelization and maintenance complexity, are discussed.
vol. 2 num. 20 - 2025 May 19
Developer Technologies
Implementation and Challenges of Redis and Memcached in Architectures with Horizontal Scalability
This article explores the implementation of Redis and Memcached in architectures with horizontal scalability, highlighting their features, challenges, and best practices. Both technologies are essential for optimizing application performance in high-demand environments, with Redis offering persistence and support for complex data structures, while Memcached is simpler and more efficient for volatile data.
vol. 2 num. 19 - 2025 May 12
Developer Technologies
API modeling with REST and GraphQL: Case study in .NET projects
This article addresses API modeling, highlighting the importance of APIs in the integration of modern systems. It explores two relevant approaches: REST and GraphQL, with an emphasis on their implementations in .NET. REST, based on resources and HTTP protocols, is well-regarded for its simplicity and efficiency, while GraphQL offers flexibility in data queries.
vol. 2 num. 18 - 2025 May 05
Developer Technologies
Concurrency Control in Multithreaded Environments with SemaphoreSlim in C#
This article explores concurrency control in multithreaded environments using the SemaphoreSlim class in C#. SemaphoreSlim is a lightweight semaphore implementation that limits the number of threads accessing a resource simultaneously, making it ideal for I/O operations. The article explains its operation, advantages and disadvantages, as well as providing practical implementation examples in scenarios such as database access and external services.
vol. 2 num. 17 - 2025 Apr 28
Developer Technologies
Application of best practices in developing workers in .NET for consuming messages in Azure Service Bus.
This article addresses the application of best practices in the development of workers in .NET to consume messages from Azure Service Bus, a messaging solution from Microsoft. It highlights the importance of efficient connection management, error handling, scalability, and security in communication. The text presents practical examples, including environment configuration, basic worker structure, and monitoring strategies.
vol. 2 num. 16 - 2025 Apr 21
Developer Technologies
Building a Circuit Breaker Mechanism Using .NET
The article presents a practical approach to implementing the Circuit Breaker pattern in .NET applications using the Polly library. The Circuit Breaker is a technique that increases the system's resilience by preventing cascading failures caused by external services. Through code examples, the text demonstrates how to install and configure Polly, create Circuit Breaker policies, and test their functionality.
vol. 2 num. 15 - 2025 Apr 14
Developer Technologies
From DTO to ViewModel: Mapping Strategies Between Layers in C#
This article explores the differences and mapping strategies between Data Transfer Objects (DTOs) and ViewModels in C#. DTOs are used for efficient data transfer between layers, while ViewModels cater to the specific needs of the user interface. The text discusses mapping methods, including the use of the AutoMapper library and manual approaches, as well as considerations for adoption and testing.
vol. 2 num. 14 - 2025 Apr 07
Developer Technologies
Separation of Responsibilities in Practice: Comparison between N-Tier Architecture and Clean Architecture
This article explores software architecture, focusing on two approaches: N-Tier and Clean Architecture. N-Tier Architecture organizes software into layers, facilitating maintenance and scalability, but it can present limitations such as tight coupling and complexity. In contrast, Clean Architecture prioritizes separation of concerns and flexibility, allowing for more effective testing and less impactful changes to business logic.
vol. 2 num. 13 - 2025 Mar 31
Developer Technologies
Comparative Analysis between Monolithic Architecture and Microservices in .NET Applications
This article explores monolithic and microservices software architectures, focusing on their implications for .NET applications. The monolithic architecture, which integrates all components into a single unit, is simpler to develop but faces challenges in scalability and maintenance as it grows.
vol. 2 num. 12 - 2025 Mar 24
Developer Technologies
Exploring the CQRS Pattern in Web APIs with .NET Core
This article explores the implementation of the Command Query Responsibility Segregation (CQRS) pattern in Web APIs using .NET Core. CQRS separates read and write operations, allowing for independent optimizations and better scalability in complex applications. The text details basic components such as commands, queries, and events, and presents a practical project in .NET Core.
vol. 2 num. 11 - 2025 Mar 17
Developer Technologies
Exploring Code Smells in C#: Detection and Refactoring
The article discusses the concept of "code smells," which are signs of design and implementation problems in the code that can compromise its maintainability and scalability. Although they are not bugs, their presence can affect team morale and software quality. SonarQube is presented as an effective tool for detecting these issues, allowing teams to focus on the continuous improvement of the code.
vol. 2 num. 10 - 2025 Mar 10
Developer Technologies
Effective Use of Delegates for Implementing Callbacks in C#
This article explores the use of delegates in C# to efficiently implement callbacks and events. It begins with an introduction to delegates, followed by practical examples that demonstrate their application in callbacks, multicast, LINQ, and asynchronous programming. The text also addresses the creation of generic delegates and the comparison between delegates and interfaces.
vol. 2 num. 9 - 2025 Mar 03
Documentation
API-First and Event-Driven Architecture: Complementary Approaches for Scalable Systems
This article explores the intersection between two modern approaches to software architecture: API-First and Event-Driven Architecture (EDA). The API-First approach prioritizes API design before development, promoting clear collaboration and documentation, while EDA enables asynchronous and decoupled communication between components, enhancing scalability and resilience. The combination of these methodologies can lead to more efficient and agile systems.
vol. 2 num. 8 - 2025 Feb 24
Developer Technologies
Comparison between Client-Side Rendering and Server-Side Rendering: Impacts on Performance and User Experience
This article analyzes the approaches of Client-Side Rendering (CSR) and Server-Side Rendering (SSR) in web applications, highlighting their impacts on performance and user experience. CSR allows for fluid interactions but may have a slower initial load, while SSR offers fast rendering but can result in slower navigation. The choice between the two techniques should consider factors such as SEO, scalability, and the specific needs of the project.
vol. 2 num. 7 - 2025 Feb 17
Developer Technologies
Comparative Analysis between Cognitive Complexity and Cyclomatic Complexity in Software Development
This article explores the relationship between cognitive complexity and cyclomatic complexity in software development. Cognitive complexity, a qualitative metric, reflects the difficulty of the programmer in understanding the code, while cyclomatic complexity is a quantitative metric that measures the number of independent paths in the code. Although distinct, both impact the readability and maintainability of the software.
vol. 2 num. 6 - 2025 Feb 10
Developer Technologies
Limitations and challenges of using the KLOC metric in effort estimation for C# projects
The KLOC (thousands of lines of code) metric is widely used to estimate effort in software development projects, especially in C#. However, its simplicity hides significant limitations, such as the lack of consideration for code complexity and quality. Projects with the same number of lines may require different efforts, depending on the team's experience and the nature of the code.
vol. 2 num. 5 - 2025 Feb 03
Developer Technologies
Optimization of Settings for Iris Recognition with VeriEye in C#
Iris recognition is a biometric technique that stands out for its accuracy in security and authentication systems. This article explores the optimization of the VeriEye library in C# to improve the accuracy and speed of recognition, addressing everything from initial setup to integration with other systems. It highlights adjustments in image capture parameters, optimization of processing algorithms, and efficient data management.
vol. 2 num. 4 - 2025 Jan 27
Developer Technologies
Techniques for Implementing Instance, Private, and Static Constructors in C#
This article explores techniques for implementing instance, private, and static constructors in C#. Constructors are essential for the proper initialization of objects, ensuring valid states. Instance constructors allow for customization of object creation, while private constructors control the instantiation of classes, as in the Singleton pattern. Static constructors are used to initialize static members.
vol. 2 num. 3 - 2025 Jan 20
Developer Technologies
Logging in APIs with NLog and Elasticsearch: Implementation and Best Practices
This article addresses the importance of logging in APIs, highlighting how an effective logging system can improve problem identification and decision-making. Through the implementation of NLog and Elasticsearch, the text demonstrates how to configure and integrate these tools into C# projects. The article also presents best practices to ensure the usefulness of logs, such as defining appropriate levels and protecting sensitive data.
vol. 2 num. 2 - 2025 Jan 13
Developer Technologies
Strategies to Determine the Ideal Code Coverage Percentage in Web Applications
This article discusses the importance of code coverage in web applications developed in C#. Code coverage is a metric that evaluates the quality of automated tests, helping to identify areas of the code that need more attention. A coverage of 70% to 80% is recommended, adjustable according to the project's context.
vol. 2 num. 1 - 2025 Jan 06
Developer Technologies
Practical Applications of Regular Expressions for Validation in Csharp
This article provides an introduction to regular expressions (regex) and their applications in data validation in C#. It explores the use of regex to check common input formats such as emails, phone numbers, CPF, URLs, passwords, dates, postal codes, and numbers. Each section includes practical code examples and detailed explanations of the expressions used.
vol. 1 num. 26 - 2024 Dec 30
Developer Technologies
Best practices for using DTOs (Data Transfer Objects) in a clean architecture
This article discusses best practices for using Data Transfer Objects (DTOs) in a clean architecture. DTOs are essential for separating responsibilities, reducing coupling between layers, and facilitating communication between systems. The text highlights the advantages of DTOs, such as data validation and performance improvement, as well as presenting guidelines for their creation, such as clear naming and immutable properties.
vol. 1 num. 25 - 2024 Dec 23
Developer Technologies
Comparison of Transient, Scoped, and Singleton: Optimized Approaches for Dependency Injection in C#
Dependency Injection (DI) is an essential design pattern for separation of concerns in C# applications. This article explores the three main modes of DI: Transient, Scoped, and Singleton. The Transient approach creates new instances with each request, making it ideal for lightweight services. Scoped reuses instances during an HTTP request, making it suitable for services that temporarily share data. Singleton, in turn, ensures a single instance for the entire application.
vol. 1 num. 24 - 2024 Dec 16
Developer Technologies
Strategies for Identifying Dead Code in .NET Applications
The article discusses the importance of identifying and removing dead code in .NET applications, defining it as unused code that can compromise readability, performance, and maintenance of the software. It highlights various techniques for its identification, including static analysis, test coverage monitoring, dependency analysis, code reviews, and feedback from error reports. Tools such as ReSharper, SonarQube, and NDepend are mentioned as useful resources.
vol. 1 num. 23 - 2024 Dec 09
Developer Technologies
Factory Pattern: Structure, Application, and Practical Details
The article explores the Factory design pattern, a widely used approach in software development that allows the creation of objects without specifying their concrete classes. It details the Factory Method and Abstract Factory variants, presenting their implementations in C# and practical cases.
vol. 1 num. 22 - 2024 Dec 02
Developer Technologies
Development of Recommendation Systems with OpenAI Embeddings and Csharp
This article presents an introduction to recommendation systems, highlighting their importance in digital platforms and the use of algorithms to personalize the user experience. It explores the concept of OpenAI embeddings, which are vector representations of words, essential for improving the accuracy of recommendations. The text details the implementation of collaborative filtering and content-based methods in C#.
vol. 1 num. 21 - 2024 Nov 25
Developer Technologies
Exploring the Use of OpenAI Completions in Csharp Projects
This article explores the integration of OpenAI in C# projects and how artificial intelligence can revolutionize application development. It initially addresses the environment setup, including the installation of the .NET SDK and authentication with the OpenAI API. It then presents practical examples of text generation, chatbot building, and structured data analysis. The article also discusses security and privacy considerations, as well as envisioning the future of AI in C#.
vol. 1 num. 20 - 2024 Nov 18
Developer Technologies
Improving Test Coverage in Csharp Using Moq and xUnit
This article addresses the importance of test coverage in software development in C#, highlighting the use of the xUnit and Moq tools. Test coverage is vital to ensure code quality, identifying failures and preventing issues in production. The article explores the configuration of the testing environment, writing unit tests, and using mocks with Moq to isolate dependencies.
vol. 1 num. 19 - 2024 Nov 11
Developer Technologies
Analysis and Monitoring of Quality Metrics in C# with SonarQube
This article provides an introduction to code quality monitoring in software development, highlighting the importance of quality and the SonarQube tool, which performs static code analysis in C# projects. The text explores the main features of SonarQube, including detailed reports and integration with CI/CD processes.
vol. 1 num. 18 - 2024 Nov 04
Developer Technologies
Exploring abstract, virtual, override, and sealed to Implement Polymorphism in Csharp
The article discusses the concept of polymorphism in C#, a pillar of object-oriented programming, allowing methods with the same name to behave differently in different classes. It explores the use of the keywords `abstract`, `virtual`, `override`, and `sealed` to implement polymorphism, illustrating with practical examples.
vol. 1 num. 17 - 2024 Oct 28
Developer Technologies
Naming Strategies for Variables and Methods in Csharp
This article discusses the importance of proper naming in programming, especially in C#. It highlights how clear and descriptive names for variables and methods improve readability, maintenance, and collaboration in software projects. The text presents naming guidelines, such as the use of PascalCase and camelCase, as well as strategies for intuitively naming variables and methods.
vol. 1 num. 16 - 2024 Oct 21
Developer Technologies
Main Practices of Immutability in C# for Safer and More Efficient Code
This article explores the concept of immutability in C#, highlighting its advantages, such as safety and efficiency in software development. It presents the implementation of immutable classes and structs, as well as tuples, which are immutable by default. The use of immutable collections is also discussed, emphasizing data integrity in complex applications.
vol. 1 num. 15 - 2024 Oct 14
Developer Technologies
Lazy Loading in .NET: Best Practices and Precautions for Performance Optimization
This article explores the Lazy Loading technique in .NET applications, highlighting best practices, precautions, and performance impact. Lazy Loading allows for on-demand data loading, optimizing resource usage and enhancing user experience. The text discusses implementation alongside ORM, such as Entity Framework, and presents practical examples.
vol. 1 num. 14 - 2024 Oct 07
Developer Technologies
Exploring the Prototype Pattern in Web APIs using Csharp
The article explores the application of the Prototype pattern in Web APIs using C#. The Prototype allows for the creation of new objects from existing instances, avoiding the complexity and cost of starting from scratch. The implementation includes the definition of an IProduct interface and classes that implement it, demonstrating the cloning of products and categories. The use of this pattern offers benefits such as increased performance, simplicity, and ease of maintenance.
vol. 1 num. 13 - 2024 Sep 30
Developer Technologies
Strategies for collecting Metrics and Logs in WebAPI using Csharp with OpenTelemetry
The article provides an introduction to OpenTelemetry, an essential tool for the observability of distributed systems. With the increasing complexity of applications, OpenTelemetry offers a unified standard for collecting metrics, logs, and tracing. The text details the initial setup in C# applications, including the collection of metrics and logs, integration with monitoring backends like Jaeger, and best practices for instrumentation.
vol. 1 num. 12 - 2024 Sep 23
Developer Technologies
Performance analysis in Csharp with BenchmarkDotNet: Report and Evaluation
This article provides an introduction to Benchmarking in C# using the BenchmarkDotNet library, essential for performance analysis in software development. It covers everything from installation and configuration to creating benchmarks to measure the efficiency of algorithms and data structures. The text details the interpretation of results, report generation, and best practices to ensure accurate measurements.
vol. 1 num. 11 - 2024 Sep 16
Developer Technologies
Comparative Analysis of Patterns: Distinctions and Applications of Behavioral, Creational, and Structural Patterns
Comparative analysis between behavioral, creational, and structural patterns, highlighting their distinctions and applications in software development. Behavioral patterns are explored for their ability to facilitate interaction between objects. Creational patterns are evaluated for their capability to abstract the object creation process. Finally, structural patterns are analyzed by the way they organize classes and objects in larger and more complex systems.
vol. 1 num. 10 - 2024 Sep 09
Developer Technologies
The Singleton Pattern in Scalability Contexts: Performance Evaluation and Maintenance Impacts of Systems
The Singleton pattern is widely used to ensure the existence of a single instance of a class and provide a global point of access to that instance. However, its application in scalable systems can present significant challenges related to performance and maintenance. This article presents potential impacts of the Singleton pattern in scalability contexts, analyzing how it affects the performance of distributed systems and ease of maintenance.
vol. 1 num. 9 - 2024 Sep 02
Developer Technologies
Implementation and Challenges of CORS in Web Applications Developed with Csharp: A Technical and Practical Analysis
This article explores the implementation and challenges of Cross-Origin Resource Sharing (CORS) in web applications developed with C#. Through a technical and practical analysis, the study addresses the necessary configurations to enable CORS, the common scenarios in which CORS issues occur, and the best practices to mitigate them.
vol. 1 num. 8 - 2024 Aug 26
Developer Technologies
Comparison between Ports in Hexagonal Architecture and Interfaces in Clean Architecture: A Conceptual and Practical Analysis
The article explores the similarities and differences between two central concepts in popular software architectures: Ports in Hexagonal Architecture and Interfaces in Clean Architecture. The analysis addresses the theoretical foundations of each approach, highlighting how these concepts shape the structure and interaction of software components.
vol. 1 num. 7 - 2024 Aug 19
Developer Technologies
Guidelines for the Efficient Use of the Bogus Library in C# for Fake Data Generation
The Bogus library is widely used for generating fake data in software development projects, especially in testing environments. This article presents a set of guidelines and best practices for the efficient use of Bogus in C#. The goal is to assist developers in creating realistic and varied data, ensuring that software tests are robust and representative. The article also explores some advanced features of the library.
vol. 1 num. 6 - 2024 Aug 12
Developer Technologies
Unveiling Generics in C#: Working for Reusable and Efficient Code
Generics in C# allow for the creation of flexible and reusable code for different data types, offering benefits such as code reuse, compile-time safety, and performance improvements, exemplified by the creation of generic lists, comparison methods, and use with type constraints.
vol. 1 num. 5 - 2024 Aug 05
vol. 1 num. 4 - 2024 Jul 29
vol. 1 num. 2 - 2024 Jul 15
Developer Technologies
What are the consequences of a cyber blackout? Is it possible to mitigate the risks?
The article addresses the phenomenon of cyber blackout, its devastating consequences for society and the economy, and the importance of mitigation strategies and technological innovation in cybersecurity.
vol. 1 num. 1 - 2024 Jul 08