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dpawlukiewicz | użytkownik

2 066,6
3 godziny, 45 minut temu
5 kwietnia, 2016

I’ve been working as software developers since July 2014 and during that time my point of view of IT industry have changed several times. Before starting my career I had absolutely no idea about this profession but even though I loved that! Why? Simply because of my friends who talked about tons of money they were earning, lots of benefits in the office including snacks, coffee, PlayStaion, alcohol and so on. That seemed awesome! Infamously, I must admit tha...

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My "professional" hierarchy of needs - Forever F[r]ame

Inne 2 dni, 3 godziny, 5 minut temu dpawlukiewicz 122 rozwiń

I’m a really big fan of Scott Hanselman and the way he manages his personal/work time. While watching his „soft” talk titled „Scaling Yourself” I was surprised when he described his way of answering some questions coming from all over the world (via email). He said that each of us has a limited number of keystrokes until we die so, it’s such a waste to write a dedicated email with long answer and examples in the code. Why? Because we could optimize that process and share our knowledge with other folks ou...

When to use Include() with Entity Framework? - Forever F[r]ame

Web 7 dni, 8 godzin, 28 minut temu dpawlukiewicz 138 rozwiń

This is one of those "I had to explain this couple times already so next time I want something I can redirect people to" kind of post. What I want to write about is difference in behavior between using new() and DbSet.Create() for instantiating new entities.

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[EN] Entity Framework - new() vs DbSet.Create()

Inne 13 dni, 19 godzin, 53 minuty temu tpeczek 198 rozwiń

Sometimes it happens that knowing well some tool we suddenly discover an option that seems completely „exotic” but when we sh...

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CodeTip #4 Debugging with conditions & actions in Visual Studio - Forever F[r]ame

Narzędzia 13 dni, 19 godzin, 53 minuty temu dpawlukiewicz 70 rozwiń

Przy okazji konferencji PolCaster 2016 (na której byłem w zeszłym roku) usłyszałem dość interesującą informację, a mianowicie: statystycznie podcast kończy się po 7/8 odcinku. Później następuje wypalenie, lub brak pomysłów i bum…koniec. O ironio mój podcast również przez chwile mógł wydać się kolejnym kandydatem do zamknięcia, ale tak jak zapowiadałem w podsumowaniu roku… POWRÓCIŁ! Nie będę się tu zagłębiał i rozpisywał nad przyczynami tak sporej przerwy (bo trwa ona on września), ale z tego miejsca wszy...

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DevReview #9 O LINQ z Rafałem Hryniewskim - Forever F[r]ame

Inne 18 dni, 18 godzin, 11 minut temu dpawlukiewicz 105 rozwiń

Aggregate is one of the most fun and powerful methods in LINQ. Sadly it's also of of the most underused and "scary" ones. I hope that after reading this post you will understand Aggregate a bit more, know when to use it and won't be afraid of doing so.

Tagi: aggregate, Linq
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Hryniewski.NET | LINQ - don't be afraid of Aggregate

Sztuka programowania 34 dni, 5 godzin, 46 minut temu Rafał Hryniewski 249 rozwiń

Nowadays, asynchronous programming isn’t something unusual. We all know that when it comes to do some I/O operations or HTTP request, we should do it async. Why? There’re several reasons but two most important  are:Efficiency. In many cases, the code might work faster. That’s because it’s not forced to wait for the result. Instead, it can work on some other stuff and then come back for the response when it’s ready. Simple is that.Comfort. Async improves the comfort of using our applications. We don’t blo...

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What lies beneath async/await in C# ? - Forever F[r]ame

Sztuka programowania 31 dni, 23 godziny, 26 minut temu dpawlukiewicz 298 rozwiń

Hi folks, it’s me again! Well, I was kind of inactive for a while and to be honest, I did it for a purpose. 2016 was an absolutely crazy year for me, full of new challenges, projects and personal changes (hope that most of them were those positive). Therefore, at the end of December, I decided to take a short break and flush my thoughts related to the blog, podcast and… programming. But don’t be nervous, I’m not gonna give it up! Anyway, I guess that with the new year it’s finally time to do some summar...

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My thoughts about 2016 - Forever F[r]ame

Inne 42 dni, 21 godzin, 48 minut temu dpawlukiewicz 28 rozwiń

Niektórzy w tej chwili lepią pierogi, próbują nie wrócić do domu z pangą, latają za zapomnianym prezentem niczym Arnold za Turbo-Manem lub w ciepłym, przytulnym domku wieszają na choince bombki. Ja z kolei mam cały dzień dla siebie i jego część postanowiłem na napisanie krótkiego posta o tym jak możecie wykorzystać enumy jako flagi i obwiesić nimi swoje obiekty tak bardzo jak tylko chcecie, a żeby zachować choć pozory świątecznej atmosfery zrobię to z małym świątecznym akcentem (takim tycim).

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Hryniewski.NET | Enumy jako flagi i wykorzystanie operatorów bitowych (XMASS Edition)

Sztuka programowania 49 dni, 7 godzin, 17 minut temu Rafał Hryniewski 212 rozwiń

Often developers as a log store use text files, system events, output console or database. In some cases they use distributed systems such Splunk or Elasticsearch. In this article I would like to present how to store logs in the form of objects, rather than plain text, which also offers all sorts of graphs and charts called dashboards.

Log data using Serilog, Elasticsearch and Kibana |

Sztuka programowania 56 dni, 8 godzin, 4 minuty temu Mateusz Pustelak 143 rozwiń

One thing that surprised me the most about the C# was the fact that it does not support multiple inheritances (which I knew from the C++). How can we deal with that? Of course, we use interfaces, since one class can implement more than one. But quickly we come to the very common problem...

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Using C# explicit interface implementation for hiding... - Forever F[r]ame

Sztuka programowania 61 dni, 6 godzin, 46 minut temu dpawlukiewicz 185 rozwiń

Sometimes it happens that we use mechanisms/features of specific language without beeing aware of it. That’s fine, but if you’ll want to discuss your code in a future to the audience or coworkers, soon or later you’ll be forced to learn it and understand (or at least name it using technical nomenclature). Therefore, today I’m going to discuss two related „mechanisms” of C# which are covariance and contravariance.  Covariance Covariance is a type conversion from the specific type to the more general (ba...

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What are covariance and contravariance in C#? - Forever F[r]ame

Sztuka programowania 66 dni, 21 godzin, 36 minut temu dpawlukiewicz 183 rozwiń

In today’s post, we are going to explore another feature of the Aurelia framework or more precisely aurelia-fetch-client. So, in many cases, it would be nice to perform some specific actions when doing an AJAX request. For instance, before sending a request we want to log it into browser database like PouchDb. A more common example is calling a toastr on some error like 404, 500, 401. The problem with such a scenarios is that many developers duplicate their code in every single request/callback so they b...

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[EN] Using Interceptors with aurelia-fetch-client - Forever F[r]ame

Web 77 dni, 6 godzin, 48 minut temu dpawlukiewicz 23 rozwiń

I’ve been using Windows OS since I remember. I guess the first version I used was ’95. Why Windows? Well mostly because of simplicity. When I wanted to install some application, all I needed to do was to download that and run the .exe. No struggling with some weird „sudo” like commands that I didn’t understand. It just worked fine. Things changed when I went to university and discovered Debian which is a Linux distribution. My first moments with UNIX family wasn’t very enjoyable but after few days I unde...

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[EN] Mac OS X for .NET developer? - Forever F[r]ame

Inne 85 dni, 2 godziny, 23 minuty temu dpawlukiewicz 104 rozwiń

When coding web applications we sometimes come to the point when we need to perform some action during user’s navigation. One of the most common examples would be authorization and checking whether the user has appropriate roles. Fortunately, Aurelia provides an access to route pipeline so it’s super easy to add some extra steps Let’s get to work!  Inspecting RouterConfiguration In order to add our custom pipeline steps, we need to create some routing for the application. I won’t describe the whole pr...

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[EN] Exploring Aurelia's route pipelines - Forever F[r]ame

Web 90 dni, 3 godziny, 21 minut temu dpawlukiewicz 46 rozwiń

A few days ago I was playing with Entity Framework when suddenly an Exception popped out on the screen:   Additional information: LINQ to Entities does not recognize the method ‚System.String GetFullName(User)’ method and this method cannot be translated into a store expression.   That was because accidently I treated Expression

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[EN] Func vs. Expression - Forever F[r]ame

Sztuka programowania 95 dni, 3 godziny, 56 minut temu dpawlukiewicz 257 rozwiń

In the previous post, I presented to you the Aurelia – new, great JavaScript framework created by Rob Eisenberg. We also used its Command Line Interface (CLI) to create new Aurelia project with all its dependencies, unit tests, and HTTP server. As I announced back then, we’re going to play with CLI to generate some code inside our project. So, let’s get started!Aurelia CLI generator Okay, before our implementation, let’s find out what kind of code we can generate using Aurelia’s CLI. To do that, just ty...

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[EN] Generating view model and view using Aurelia CLI - Forever F[r]ame

Web 111 dni, 21 godzin, 16 minut temu dpawlukiewicz 37 rozwiń

As we all know, JavaScript world is one of the fastest growing. New frameworks appear and soon after die because of capabilities or outdated solutions. The example here is knockout.js (which I really loved by the way) – an excellent MVVM framework with dependency injection, two-way data binding e.t.c which was eaten by Google’s child called Angular. In the meantime React JS happened and all these great frameworks like Ember or Polymer. In early 2016, all frontend geeks waited for the new awesome framewor...

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[EN] Meet Aurelia & CLI - Forever F[r]ame

Web 110 dni, 5 godzin, 52 minuty temu dpawlukiewicz 55 rozwiń

Czy metody HTTP i JSON to już REST? Co powinniśmy wiedzieć, zanim wystawimy publicznie API i ogłosimy całemu światu, że jest ono "RESTful" ?

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8 rzeczy, które warto wiedzieć projektując REST-owe API

Architektura 123 dni, 11 minut temu mickl 673 rozwiń

To be honest, I thought that my previous post would be the last in the CQRS/ES series, but I forgot to discuss one more thing related to that topic. Many developers don’t know how we should handle the following scenario in our systems:   „During the creation of user’s new account I would like to verify rather a username is unique in the whole database. Should I use Event Store or Read Database for a query? Where should I check that?”   Seriously, that question is one of the most popular topics connected ...

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[EN] How to guarantee username uniqueness with CQRS/ES? - Forever F[r]ame

Sztuka programowania 119 dni, 22 godziny, 19 minut temu dpawlukiewicz 138 rozwiń

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