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• Modular Monolith: dependencies and communication between Modules
  2024-05-19
  Before talking about module communication, it is important to emphasize the consequences of chosen module design. Problems that we will face when communicating between modules, how often and how much of communication there will be, depend mostly on decided modules structure ... Assuming that we have modules that depend very little on each other, but sometimes they do need to talk with each other - how can they and when they should?
• HTMX: a setup ready for Production
  2024-05-04
  HTMX is a promising technology that simplifies many things when building web applications/systems ... That is great when it comes to local development and simple experiments, but what about Production?
• Load Testing: how many HTTP requests/second can a Single Machine handle?
  2024-03-28
  When designing systems and deciding on the architecture, I often hear justifying the use of microservices and other complex solutions because of the predicted performance and scalability needs. Out of curiosity then, let's test the limits of an extremely simple approach, the simplest possible one.
• Kubernetes: maybe a few Bash/Python scripts is enough
  2024-03-09
  When it comes to the infrastructure of a software system, there are some features that are virtually always needed, independently of the project nature, and some that are additional, optional, or useful only in some projects and contexts ... Infrastructure is a crucial component of every software system: what do we need from it?
• HTMX and Web Components: a Perfect Match
  2023-12-21
  Web Components are a set of browser APIs that allow us to create custom HTML elements. They are one of the major things that SPA (Single Page Application) frameworks have been giving us for a long time ... HTMX is highly interesting, useful and a promising technology. It simplifies many things and allows us to build SPA or SPA-like applications without complex tooling, dependencies, frameworks and mostly without writing application-specific JavaScript code.

Prior

• Modular Monolith and Microservices: Modularity is what truly matters
  2023-11-26
  Modularity is a crucial concept when designing and creating software. Independent of whether our chosen architecture style is to have a single unit of deployment - Monolith or multiple units of deployment - Microservices/Services. It is a quality that should be treated completely independent of how many deployable units of software we choose to have.
• Unit, Integration, E2E, Contract, X tests: what should we focus on?
  2023-11-04
  When we write software, we intend it to be used in some, usually predefined and desirable, way. All software has some specification, either explicitly described or implicitly assumed. How do we know that it (software) works? We can test it manually, using all of its features and functionalities. Unfortunately, this approach breaks down pretty fast.
• Index: a crucial data structure for search performance
  2023-10-08
  There are many variations and types of it, depending on the underlying database/search engine and its purpose, but the core concept is always the same: let's have an additional data structure that points to/references the original data and makes searching fast.
• HTMX: simpler web-based app/system
  2023-09-22
  Nowadays, when we develop web-based app/system it is most likely built as SPA, which is a single page application. We should ask, why have we done that? Why have we switched from multi page applications, where the browser supported all of these functions out of the box, functions that we now need to recreate by writing custom JavaScript code?
• Indexing, Partitioning, Sharding - it is all about reducing the search space
  2023-09-09
  Whenever I think about optimizing certain data query, be it SQL (mostly) or NoSQL, I find it useful to think about these problems as search space problems. In other words, how much data need to be scanned/checked in order for my query to be fulfilled?