Programming Archives - Page 2 of 5

May 17, 2022 Programming Post a Comment

How To Fix SqlException Database Is Not Currently Available On Azure (0x80131904)

I recently deployed my .NET 6 application to Microsoft Azure. The app uses NHibernate for working with SQL Server database. After some time, I started getting an unhandled exception when opening the application:

NHibernate.Exceptions.GenericADOException: could not load an entity: 
...
 ---> Microsoft.Data.SqlClient.SqlException (0x80131904): Database 'myappdb' on server 'myapp.database.windows.net' is not currently available.  Please retry the connection later.  If the problem persists, contact customer support, and provide them the session tracing ID of '{EB501CF2-2F21-4E28-9042-2B83EEE57B91}'.

The database is not currently available was very interesting to me. I struggled a bit with solving that, so if you want to know how I did it – continue reading 🙂

April 30, 2021 Programming 13 Comments

How to fix: npm ERR! enoent ENOENT: no such file or directory, rename

I recently struggled for a while with an npm error thrown when executing npm install of some package. The error message was npm ERR! enoent ENOENT: no such file or directory, rename 'D:\\WebApp\\node_modules\\lz-string' -> 'D:\\WebApp\\node_modules.lz-string.DELETE'

Finally, I found a solution and a reason for that issue.

November 9, 2020 .NET, C#, Programming 2 Comments

Improve your tests with Assert Object Pattern

Today I’d like to share with you a very interesting concept in software testing – Assert Object pattern. It makes the Assert part of a test much simpler and more readable. Let’s dive right into it 😉

August 29, 2020 Programming Post a Comment

Is It Worth Migrating to TypeScript?

For the past year I’ve been working on a JavaScript project for my client. We have a mid-size web application. We use React as the web development framework. Few months ago we decided to start migrating to TypeScript.

Today I can say that it was the best decision we could make. TypeScript makes working with JavaScript, which is sometimes surprising and quite hard to understand, so much better experience. However, there were some challenges on this journey. If you want to know what issues we met and how we solved them, but also what huge advantages TypeScript gave us – read on 😉

I will not discuss TypeScript itself in this article. This is a pure recap of challenges and the experience I gained when migrating to TypeScript.

January 16, 2020 Programming Post a Comment

Basics of Flutter Widgets

After writing our first Flutter app in less than 30 minutes, today we’re taking a look at Flutter widgets. If you want to know what is a widget in Flutter, what are widgets types and how to use them – this article is for you 🙂

December 4, 2019 Programming Post a Comment

Your First Flutter App in 30 Minutes

You may know my past affair with Xamarin, which somehow died a natural death. In today’s post, we’re taking a look at Flutter. If you want to know what is Flutter and how to build your first Flutter app in less than 30 minutes (including installation time) – let’s jump right into it 😉

October 2, 2019 Programming Post a Comment

How to Start Working with an Unknown Codebase?

If you’ve ever joined a new project you probably know the excitement of being presented with a brand new source code. As soon as you’re assigned your first tasks the excitement turns into frustration, because it’s not easy to fix this simple bug… Even you’re an experienced developer.

Today I’m trying to address the issue of approaching an unknown codebase. I’ll give you some advices and tricks I’m using to make new code easier and quicker to understand – even without understanding it all 🙂

February 20, 2019 Programming Post a Comment

C# 8: Default Interface Methods Implementation

Continuing to examine new C# 8 features, today we are taking a look at a bit controversial one. It’s a possibility to provide default interface methods implementation.

How will this possibility change the way we write C#? Why is it being introduced? I’ll try to address these questions today 🙂

February 13, 2019 Programming 1 Comment

C# 8: Slicing with Indexes and Ranges

C# 8.0 brings us another nice feature called slicing. In order to make it possible, two new concepts are introduced: Indexes and Ranges.

Let’s see how this tiny feature is supposed to make our life easier 🙂

February 5, 2019 Programming Post a Comment

C# 8: Nullable Reference Types

In the few next posts I’d like to share with you some of the most interesting C# 8.0 features. Today we’re going to start with examining nullable reference types. Let’s see then 🙂

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