https://www.jibberwock.com/ Personal collection of projects and useful links 2024-01-13T13:13:03+00:00 Edward Neal https://www.jibberwock.com/ Jekyll © 2024 Edward Neal /assets/img/favicons/favicon.ico /assets/img/favicons/favicon-96x96.png 2020-02-11T22:00:00+00:00 2020-02-11T22:00:00+00:00 https://www.jibberwock.com/posts/system-text-json-inheritance/ edwardneal

Overview By default, ASP.NET Core uses a new JSON serializer: System.Text.Json.JsonSerializer. This has slightly different behaviour to Newtonsoft’s Json.NET when serializing derived types. Example Code public class Program { public class BaseClass { public string BaseClassProperty { get; set; } } public class DerivedClass : BaseClass { public string Derive...

2020-02-09T21:00:00+00:00 2020-02-09T21:00:00+00:00 https://www.jibberwock.com/posts/x86-com-x64-client/ edwardneal

Overview This can sometimes arise during server migrations: moving from older versions of Windows Server (which are usually 32-bit) to newer ones (which have been 64-bit-only since Windows Server 2008 R2.) The reason that this causes problems is that a 64-bit process can’t directly host 32-bit code (and vice versa.) This means that if you’re updating an application which has moved from 32-bit ...

2020-02-09T21:00:00+00:00 2020-02-09T21:00:00+00:00 https://www.jibberwock.com/posts/powershell-com-variants/ edwardneal

Overview PowerShell can create instances of COM objects using New-Object -ComObject. Calling methods on these objects can be difficult though - it doesn’t seem to properly handle methods which have VARIANTs in their signature. I found this StackOverflow answer which describes the fix. You effectively need to add System.Runtime.InteropServices.VariantWrapper as another level of indirection. Sa...

2020-02-09T20:00:00+00:00 2020-02-09T20:00:00+00:00 https://www.jibberwock.com/posts/application-insights-msi/ edwardneal

Overview A lot of services can drop data into Application Insights - Azure VMs, Azure App Services, Azure Functions, custom web services and on-premise services. Getting access to this data typically requires an API key though, which can add complexity. If you don’t want to deal with managing a secret, you can also use Azure AD authentication. This will allow you to access the API using the ide...

2019-10-01T20:31:00+01:00 2019-10-01T20:31:00+01:00 https://www.jibberwock.com/posts/statuspageioclient/ edwardneal

Overview statuspage.io (later acquired by Atlassian and renamed Atlassian Status) is a fairly common service which provides a hosted status page. Part of this service is a publicly-accessible REST API, which enables people and services to get the current status, any current incidents and scheduled maintenance events. While there are a few clients which enable .NET Framework applications to acce...