Using Let’s Encrypt SSL Certificates with Azure Functions In Azure Web Apps I’ve set up previously I’ve managed to get SSL certificates for the custom domains used by using the “Let’s Encrypt” site extension in the kudu management portal as detailed here. I’d hoped it would be as easy to Read more…
PGP Encryption and Decryption in C# A while ago I knocked up a NuGet package called PgpCore which uses the BouncyCastle library to easily encrypt and decrypt files and streams. The code for the project is here and this post is mainly here to point anyone in need towards it Read more…
Upper Case the First Letter of a String This is a simple string extension for upper casing the first letter of a string, the code originally came from here. public static class StringExtensions { public static string FirstLetterToUpperCase(this string s) { if (string.IsNullOrEmpty(s)) throw new ArgumentException("There is no first letter"); Read more…
User GeoLocation in ASP.NET Core If you want to get the physical location of a user on your site there’s a couple of different methods that you can use, you can either use their IP address to get an approximate location or you can request a more accurate location from Read more…
Thread Safe DataTable Inserts and SqlBulkCopy As part of a project where I was running multiple threads making API calls like this I was making a stored procedure call to log the results to an SQL database for each result returned. This worked fine when a low number of threads Read more…
Cryptographically Secure Random Number In a similar vein to my attempt to generate a cryptographically secure random string I also wanted to be able to create cryptographically secure random numbers. The below function is based on the answer from Markus Olsson to the stackoverflow question here. public static int GetRandomInteger(int Read more…
Cryptographically Secure Random String I’ve been trying to generate unique referal codes composed of uppercase letters for a project and although it’s not really necessary I wanted to make these as cryptographically sound as possible so I could reuse the code later in a personal password generator project. Turns out Read more…
Using NPM and Gulp in Visual Studio 2017 By default new Web Applications created in Visual Studio 2017 use Bower for managing external libraries such as jQuery and Bootstrap, however Bower is no longer best practice (and seemed a bit flaky in Visual Studio anyway) and so for new projects Read more…
Uploading Files in ASP.NET Core from an MVC View I’ve been working on creating a page for for the uploading of files to either a SQL database or Azure Blob storage which turned out to be much more complicated than initially expected. I managed to eventually piece together how to Read more…
Checking for CSV Column Headers in C# Importing CSV files into a .NET object isn’t too tricky and for this I usually use CsvHelper. However, sometimes I need to import a CSV file and only extract a couple of columns from it and these columns aren’t always guaranteed to exist. Read more…