C# - rmauro.dev {blog}

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C#

A collection of 25 posts

Recursive Calls in C#: A Deep Dive

Recursive Calls in C#: A Deep Dive

Recursion functions are like a magical mirror that reflects upon itself. It's a concept where a function calls itself, creating a mesmerizing loop of self-referential elegance. Let's break it down how recursive functions works using Factorial Calculation as sample. What is a Factorial? Before we dive into the code, let's

Exit Codes in C# Applications

Exit Codes in C# Applications

When developing console applications in C#, it's important to communicate the success or failure of your program back to the operating system. This is achieved through exit codes, which are integers returned by the program when it finishes execution. An exit code of 0 typically signifies success, while any non-zero

Reading appsettings.json from a Console Application

Reading appsettings.json from a Console Application

When developing C# .NET applications, it's common to store configuration settings in a JSON file, typically named appsettings.json. This approach is not only useful for ASP.NET applications but can also be effectively used in C# Console Applications. Before we start, let's make sure to have: * .NET SDK installed

Set up Entity Framework Core In Memory Database Provider

Entity Framework Core

Set up Entity Framework Core In Memory Database Provider

One of the useful features of EF Core is the In-Memory Database Provider, which is perfect for testing purposes. In this guide, we will walk through setting up EF Core with an in-memory database, demonstrating how to configure and use it effectively. Step-by-Step Guide Start by creating a new .NET

Hangfire Implementing Background Jobs

Hangfire Implementing Background Jobs

Hangfire is a robust library for managing background jobs in .NET applications, allowing developers to easily create and manage tasks that run asynchronously. Whether you're scheduling recurring tasks, executing one-off jobs, or managing time-consuming operations without blocking the main thread, Hangfire provides a flexible and reliable solution. In this article,

C# Get JWT Token from Request .NET 6

C# Get JWT Token from Request .NET 6

This blog post will explore extracting a JWT token from incoming requests using C#. How to Get JWT Token from Request using C#

C# JWT Authentication .NET 6

C# JWT Authentication .NET 6

In this article, we will work on implementing C# JWT Authentication using .NET 7 - which also works for .NET 6, and preview .NET 8 - using ASP.NET Core.

DALL-E Art-Generator with C# .NET

DALL-E Art-Generator with C# .NET

In this blog post, we will explore the steps to develop a C# application using DALL-E model to generate images from text.

Getting Started with Serilog Custom Enrichers

Getting Started with Serilog Custom Enrichers

One of the key features of Serilog is the ability to Enrich Log Events with additional contextual information that can help in troubleshooting and debugging. In this blog post, we will explore how to create a Custom Enricher with Serilog to add custom properties to log events.

Getting Started with Chat GPT integration in a .NET C# Console Application

ChatGPT Featured

Getting Started with Chat GPT integration in a .NET C# Console Application

With the use of C#, we can develop a console application that uses the Chat GPT model to generate human-like responses to input.

EMC square formula

Define Implicit and Explicit Operator - C# Tips

C# allows us to define Implicit and Explicit operators. Unlike casting Implicit and Explicit operators defines how C# should behave when encountering an equals sign. Implicit operator execution can be invoked when assigning a variable or calling a method. To use Explicit operator we should do the same as casting

Digital Clock on the wall

Calculate Time Ago with .NET C#

Here is a small extension method over System.DateTime that gives its relative time readable for humans, such as: * one minute ago * 2 minutes ago * one hour ago * 3 hours ago * 3 days ago Check out this extension method over the DateTime structure using switch patterns. public static string AsTimeAgo(

Create a Minimal API with .NET 6

Create a Minimal API with .NET 6

One of the new features of .NET 6 is the arrival of a new template, which will replace the default and bring a good reduction in code writing. Including the removal of the Startup.cs file. .NET 6 was released as LTS (long-term stable) which means support for 3 years.

Set up Serilog in .NET 6 as a logging provider

Set up Serilog in .NET 6 as a logging provider

Let's set up Serilog as Logging Provider in the native logging system in .NET so you can use the Microsoft ILogger interface.

Optimizing Query Performance on C# ODP.NET - Oracle Managed Data Access

Optimizing Query Performance on C# ODP.NET - Oracle Managed Data Access

Oracle C# drive is already pretty fast with the default configuration. But we can always tweak it a little to make it even faster. By controlling the FetchSize property in ODP.NET we can make fewer round trips to Oracle Database and fetch the data faster. Let's take a look

Adding Startup.cs back to .NET 6 Project

Adding Startup.cs back to .NET 6 Project

When .NET 6 was released, the first big change was the lack of Startup.cs. This is very nice and all. But sometimes we just want it back, and here is how. First, create a new file called Startup.cs at the root of your project with the following content

Health Checks on your ASP.NET Core Application

DotNet Featured

Health Checks on your ASP.NET Core Application

Health Endpoint Monitoring pattern Health Check in .NET 5 is very simple. With just a few lines of code, you can set up everything to monitor the Health of our Application. Implement functional checks in an application that external tools can access through exposed endpoints at regular intervals. This can

Clock Representing the Time

DotNet Featured

Add Build Time to your C# Assembly

Having the Assembly version is great. This give us insights of wich version is running. Have the build time can also useful. Specially when we're troubleshooting our application and we're not sure of which version is running. For instance besides having only the assembly version we can have the version

API Key Authentication - Extending the native implementation

.NET 5 Featured

API Key Authentication - Extending the native implementation

In this article, we're going to create the code (and understand how it works) to handle API Key authentication with just three lines of code extending the native Authentication mechanism. We want a simple and stupid solution and not some crazy implementation using MVC [Attributes] or any customized middleware to

Compress files in memory (.zip) using C#

Compress files in memory (.zip) using C#

Here is a code snippet of how to compress one or many files to a zip archive in memory using C#. It works in .Net Core and .Net Full Framework public static byte[] GetZipArchive(params InMemoryFile[] files) { byte[] archiveFile; using (var archiveStream = new MemoryStream()) { using (var archive = new ZipArchive(archiveStream,

Getting the file name without extension in C# - #TIP

Getting the file name without extension in C# - #TIP

These days I was asking myself how to get the file name without the extension. I confess I was tempted to use a regex to solve this problem :) But no worries. There is a method in System.IO.Path specific for this situation. using System.IO; /// /// Get file name without

C# Conversions - Casting, implicit and explicit conversion

Fist the data types available. int whole numbers long whole numbers (bigger range) float floating-point numbers double double precision decimal monetary values char single character bool boolean DateTime moments in time string sequence of characters Table of implicit conversion made by C#. From To sbyte short int long float double

C# DateTime Cheat sheet - ToString() Format

C# DateTime Cheat sheet - ToString() Format

Cheat sheet with C# DateTime formats. using System; using System.Globalization; public class Program { public static void Main(string[] args) { DateTime dt = DateTime.Now; string[] format = { "d", "D", "f", "F", "g", "G", "m", "r", "s", "t", "T", "u", "U", "y", "dddd, MMMM dd yyyy", "ddd, MMM d \"'\"yy", "dddd,