trystanwilcock, Author at Trystan Lapinig-Wilcock

Implement Unit of Work with Generic Repository Pattern in C# ASP.NET Core

.NET Examples / July 9, 2023

The unit of work and generic repository pattern are essential tools that can be seamlessly integrated into any ASP.NET Core project. Their versatility and applicability make them invaluable for us as developers aiming to enhance code organization, scalability, and reusability. In this tutorial, we will explore the implementation of unit of work with the generic …

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Offline GET & POST Requests in a PWA Using a Service Worker

.NET Tutorials / June 4, 2023

One of the advantages of choosing to build an application as a PWA (or Progressive Web Application) is that it can run offline. This is achieved through the use of a service worker. A service worker acts as a proxy between the browser and the network. We can use a service worker to intercept any …

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How to Save PDF and Image Files to Database as Byte Array in C#

.NET Examples / May 17, 2023

In this blog post, we will be exploring how to save PDF and image files to a SQL Server database. We will build a form to capture the file from the user, before saving the data to the database. We will also demonstrate fetching the files from the database and displaying them. Regardless of whether …

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How to Use ChatGPT in C# – Writing a ChatGPT client

.NET Examples / March 23, 2023

ChatGPT was not yet publicly available whilst writing the last blog post, in which we built an image generator using OpenAI’s DALL·E 2 model. But alas, ChatGPT is now publicly available. So in this blog post, we’ll explore how to use the ChatGPT API in C# and walk through the process of creating a ChatGPT …

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Building an Image Generator in Blazor using Open AI DALL·E 2

.NET Tutorials / February 27, 2023 / 3 Comments

The latest trend in technology at the moment is the amazingly powerful ChatGPT by the OpenAI group. While it will soon be available through OpenAI’s API, I couldn’t wait to see what incredible things were possible with their existing APIs. This is where I came across DALL·E 2, an artificial intelligence model and language and …

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Building a Point of Sale Application in Blazor WebAssembly .NET 7 C# Tutorial

.NET Tutorials / February 20, 2023 / 3 Comments

In this tutorial, we will be building a POS or point of sale application that allows us to manage products, update stock levels and perform a sale. Here is a short demo of what the finished application will look like: We will create areas where products and their categories can be created and updated. We …

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Building a File Storage Server in .NET 7 C# Tutorial

.NET Tutorials / December 16, 2022 / 5 Comments

In this tutorial, we will be building an application that allows us to create directories and upload files to those directories. Here is a short demo of what the finished application will look like: So that all our files do not have to live in the same directory, we will create a directory structure that …

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Implement an Audit Trail in Entity Framework Core 6.0

.NET Examples / December 5, 2022 / 3 Comments

In this blog post, we will be implementing an automatic audit trail of changes made to our entities. Our audit trail will automatically track and record when an entity is added, when an entity is modified, and when an entity is deleted. As well as recording when an entity is modified, our change audit will …

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.NET 6.0 Blazor WebAssembly JWT Token Authentication From Scratch C# Tutorial

.NET Tutorials / September 28, 2022

In the previous tutorial, we built an API that creates and issues JWT tokens to authenticated users. If you haven’t already completed this tutorial, it is recommended to do so as this API will be the server project in our solution and will be used to issue JWT tokens to our client. In this tutorial, …

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.NET 6.0 JWT Token Authentication C# API Tutorial

.NET Tutorials / August 13, 2022 / 1 Comment

In this tutorial, we will be implementing JWT (JSON Web Token) tokens to authenticate users in a C# API built in .NET 6.0 and ASP.NET Core. We will be implementing users and roles using ASP.NET Core Identity. Our API will compromise of an endpoint that issues a JWT token when a successful email address and …

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Author name: trystanwilcock