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14 May 2025

Paweł Filipek

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Author: Paweł Filipek

DevOps / RabbitMQ

Message broker – RabbitMQ basic functions

30 November 201731 March 2019 - by Paweł Filipek - Leave a Comment

Before I’ll explain basic function of RabbitMQ, in the first place we need to know what it is “Message broker”. Message broker Via wikipedia In computer programming, a message broker …

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DevOps / Docker

Docker – localhost not working on Windows

30 October 201731 March 2019 - by Paweł Filipek - Leave a Comment

I recently publish a post about “How to configure docker on Windows”. But after some windows update, localhost processing stopped working. Example Let us look at the example with the …

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Databases / SQL

Simple search the whole database

7 October 2017 - by Paweł Filipek - Leave a Comment

Search throughout the database – MSSQL If we’ve got large database and we need to find some procedure or view. And we do not remember what it was called but …

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DevOps / Docker

Docker on Windows – ASP.NET Core

21 September 201731 March 2019 - by Paweł Filipek - 4 Comments.

What is Docker? Docker is a tool for running processes in an isolated environment called a container. It’s like a virtual machine but it doesn’t need opereting system. No matter …

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Backend / Security

How to hash password

30 July 201719 September 2017 - by Paweł Filipek - 4 Comments.

We know that it’s very dangerous to hold explicit passwords in a database. That is why it’s the best to get them hash but how to do it? Hash password …

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Frontend / JQuery

Send array from view to controller as class – ASP.NET Core.

14 May 201717 September 2017 - by Paweł Filipek - Leave a Comment

Example To send array values from table in view to controller as array class I’ll use JQuery and Ajax. For the needs of the example I generate table in view.

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Get noticed / Get out from smog

„Get out form smog” – mark location on google map

11 May 201711 May 2017 - by Paweł Filipek - Leave a Comment

Get out from smog – part X In this post I’ll discribe how to display your current location and location with the cleanset air on google map. To do this …

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Backend / C#

BackgroundWorker – loading in the background – example C#

7 May 201717 September 2017 - by Paweł Filipek - Leave a Comment

BackgroundWorker Thanks to this class, we can open the window(form) immediately and eg. all data can be loaded in the background. This is usefull becouse basic Windows application runs on …

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Get noticed / Get out from smog

„Get out form smog” – display the station

7 May 2017 - by Paweł Filipek - Leave a Comment

Get out from smog – part IX To view the location where user should go I need to return adress station in Json. So I have to edit my controller …

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Get noticed / Get out from smog

„Get out form smog” – selecting a range by the user

30 April 201723 October 2020 - by Paweł Filipek - Leave a Comment

Get out from smog – part VIII Today I’ll show the extension of the application with the user selectable range in which “he” can to go. I added to the …

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Backend / C# / Frontend

Generate PDF in ASP.NET Core

29 April 201717 September 2017 - by Paweł Filipek - 1 Comment

Generate PDF If we write application in version MVC 5 or less. We can use simple to use library like Rotativa. But what if we have apps on ASP.NET MVC …

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Backend / C#

Tuple Class – C#

16 April 201717 September 2017 - by Paweł Filipek - Leave a Comment

Tuple class With tuple class (available from version .Net 4.0) our function can return more then one value. I’ll show you on a simple example. Imagine that we want to …

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Get noticed / Get out from smog

“Get out form smog” – get current location from user

15 April 201715 April 2017 - by Paweł Filipek - Leave a Comment

Get out from smog – part VII In a previous posts. I showed you how to calculate distance between points. It’s time to get current location from user. We will …

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Design pattern / Software Design Patterns

Strategy pattern

9 April 201731 March 2019 - by Paweł Filipek - Leave a Comment

Strategy pattern What is the strategy pattern? Via wikipedia For instance, a class that performs validation on incoming data may use a strategy pattern to select a validation algorithm based …

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Get noticed / Get out from smog

“Get out form smog” – looking for the purest air

8 April 20178 April 2017 - by Paweł Filipek - Leave a Comment

Get out from smog – part VI Today, my application show you where is the cleanest air within 100km from my current localization(Kraków). First, I focus only on pollution dust …

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Get noticed / Get out from smog

“Get out form smog” – dependency injection

2 April 2017 - by Paweł Filipek - Leave a Comment

Get out from smog – part V Today post will be about depencendy injection.And run all the written functions as a whole. Uses for this Autofac and Autofac.Mvc – to …

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Frontend / JQuery

Sending data from dynamic list – ASP.NET Core MVC.

30 March 201717 September 2017 - by Paweł Filipek - Leave a Comment

Send dynamic list to controller Today I’ll show you how to add items to dynamic list and then send values to controller. In the first step, let’s create simple web …

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Backend / C#

LinkedList – example

23 March 201717 September 2017 - by Paweł Filipek - 1 Comment

LinkedList When we need to put some collections into stack(LIFO) or queue(FIFO). The soulition is simple, we create class Stack if we need a “last in first out” strategy and …

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Get noticed / Get out from smog

“Get out from smog” – claculate the distance

21 March 201721 March 2017 - by Paweł Filipek - Leave a Comment

Get out from smog – part IV As i mentioned in a previous post. I create a class that will be calculated the distance in kilometers between the measuring stations …

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Get noticed / Get out from smog

“Get out from smog” – obtaining precise location

18 March 2017 - by Paweł Filipek - 2 Comments.

Get out from smog – part III To measure the distance from the measuring station to current locaction of the user. Is required accurate data such as – latitude and …

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