What is a random number? Well, even if you have never read any definition, you can still answer that question pretty easy. It’s the unpredictable result of some action like throwing a dice. We just can’t predict what the next number will be. The Lucky shoot is all we’ve got. In a real world, randomness is kind of natural „thing”, but it starts to be more complicated when it comes to machines. Why? Simply because of their deterministic character...

Każdy kto jest w branży IT jakiś czas na pewno dostaje zapytania na tzw „proste stronki/aplikacje”. Autor takiego zlecenia zapewnia o prostocie pomysłu i o tym, że da się ją zrealizować małym nakładem prac – programista wyrobi się w kilkadziesiąt minut, przecież jest zdolny 😉 Pewnie każdy z was miał co najmniej kilka tego rodzaju zapytań w swojej karierze.

In the previous post, I’ve briefly described part of a process of persisting state of our actor. I’ve told you about storing events and I’ve mentioned things called snapshots. This post is entirely about them.

In one of my previous post, we got familiar with the graph databases concept as the opposing approach to the aggregate-oriented, NoSQL databases. As I promised back then, there’s going to be a series of post dedicated to the query language designed for querying that kind of data structure called Cypher. Today’s one starts it and it going to present the way to install Neo4j and later is going to discuss creating simple queries.  Installing Neo4j To start our j...

Welcome to the fifteenth episode of my course “Becoming a software developer” in which we will implement password encryption, authorization and authentication using JWT.

Almost all my career I’ve spent with relational databases (later called RDB) and more precisely SQL Server. Honestly, I’ve never complained about that. It works fine, integrating with object languages is very quick since we’ve got a lot of different ORMs (like Entity Framework or Dapper) and it’s pretty easy to learn no matter how advanced developer you are. Sounds like a perfect solution, right? I mean, think about all the companies and projects th...

Rozwiązanie powinno zostać dobrane do problemu, niestety wielu kierowników projektów dobiera problem do rozwiązania – a czasami (co gorsza) nie dobierają, tylko stosują jedno rozwiązanie niezależnie od problemu. Mam wrażenie, że tak właśnie się dzieje z popularną ostatnio metodologią „Agile/Scrum” – jest użyta w każdym projekcie. W tym wpisie wyjaśnię dlaczego kierownicy proje...

How many times have you stored something in key/value collection? Most probably it was Dictionary or some kind of implementation of IEnumerable>. More than a few times I wanted to store more than one value under single key, most common solution for this situation is Dictionary with collection of some kind as value type, but do you remember about type that was designed just for that and is seen much less often in code?

A few days ago I showed you how to combine Nancy with Autofac and ASP.NET Core IoC. Today’s post will be related to the security and more precisely JWT authentication. Before moving further, I’d like to mention that below text is going to be the last Nancy-related one (at least for now). In a next couple weeks, we’ll explore the world of graph databases with Neo4j and .NET Core, so I hope you’re as excited as I do 😉  How does JWT authe...

Tworzenie puli obiektów to częsta praktyka stosowana w bibliotekach serializujących. We wpisie sprawdzam, czy używanie takiego podejścia dla małego bloku pamięci jest efektywne i czy nie lepiej użyć niskopoziomowego słowa kluczowego stackalloc.