Warna's Journal

In the fast-paced world of software development, it is crucial to deliver high-quality products efficiently. One approach that has gained popularity over the years is the vertical slice architecture. This architectural pattern focuses on breaking traditional silos, allowing developers to deliver fully functional features end-to-end rather than working in isolated layers. So, what exactly is vertical slice architecture and how does it improve software development? Let's dive deeper into this topic and explore its benefits. Vertical slice architecture, as the term suggests, involves slicing the application vertically, across all layers, to create fully functional features. Traditionally, developers used to work in a layered architecture where each layer, such as the presentation layer, business logic layer, and data access layer, was developed in isolation. While this approach had its advantages, it often led to delays in feature delivery and increased complexity when integrating dif...

I. Introduction Overview of Monolith and Microservices If you've ever played with Lego (who hasn't, right?), you'll understand the core difference between monolith and microservices architecture. Imagine building a spaceship - in a monolithic design, you'd build the whole thing all at once. But in a microservices approach, you'd build each part separately, like the wings, the engine, and the control room, and then plug them all together. That's the essence of it. Initially, you embark on creating an exquisite monolith system, perhaps even a modular one. As time goes by, the system grows and the demands placed upon it constantly change. Gradually, small imperfections start to emerge in the system. These issues could be attributed to organizational factors, where the workload is distributed among a team. Alternatively, they could be a result of scaling challenges and obstacles affecting performance. At this point, you begin exploring potential solutions, carefully...

Let's delve into the topic of API modeling. Similar to how a visually appealing web design begins with a wireframe, a top-notch API design starts with proper modeling. So, if you're developing an API alongside a mobile or web interface, wireframing the user interface will become your new best ally. While these wireframes won't encompass every feature you require, they will assist you in focusing on what truly matters: understanding the end user's desires and preferences. Trust us, this will immensely impact the success of your API. Since the user interface involves more intricate interactions, your API must support these interactions accordingly. Don't make the mistake of assuming that your API only needs basic data-access functionality. The gaps in your API will become apparent through the user interface. Additionally, it will reveal the number of API calls required to accomplish a specific task. This is especially crucial in mobile applications where each HTTP cal...

API design is essential for efficient communication between software systems. It plays a critical role in enabling developers to integrate different systems, components, or services effectively. Well-designed APIs simplify the process of accessing and utilizing the functionalities provided by software systems. APIs serve as reusable components, allowing developers to leverage existing functionality and save time and effort. Good API design ensures that APIs are intuitive, easy to understand, and consistent. They provide clear and concise documentation, making it easier for developers to work with and integrate the APIs into their own applications. APIs act as a contract between the provider and consumer of services. Good API design promotes collaboration between teams or organizations by defining clear expectations and interfaces for communication. APIs create opportunities for innovation and the creation of new applications. They empower developers to build upon existing systems and s...

Validation is a crucial aspect that must be addressed in your application. It is essential to ensure that each request is valid before proceeding with the processing. Another critical consideration is the approach to different types of validation. Input validation and business validation should be treated differently and require specific solutions. In this blog post, I will present an elegant solution for validation using MediatR and FluentValidation. Even if you are not using CQRS with MediatR, don't worry. The concepts and techniques I explain regarding validation can be easily adapted to other paradigms. Here's what I will cover in this week's newsletter: 1. Standard approach of validation  2. Input vs. business validation 3. Separating validation logic 4. Generic ValidationBehavior Now, let's dive in. The Standard Approach of Command Validation : Typically, validation is implemented just before processing the command. However, this tightly couples the validation wit...