Sharing my best software development tips and tricks. From quick tips to actual guides and solutions.
This article explains a quick fix to a small but annoying issue: Microsoft Graph API SDK persistently returning null values for most properties of your Microsoft.Graph.User objects. The issue might happen when using either the Graph API SDK or just calling the REST API directly. Both options are entirely acceptable, and in both cases, you’re not getting the properties you wanted. Well, I wasn’t, anyway. Problem The other day, I…Continue reading How to fix Graph API returning null properties for Users?
This is something that comes up pretty often – when you’re building an application, or maybe a library you’re sharing as a NuGet package to your friends: You’ll need to share a dependency or two with your particular package, and you don’t want your end users having to reference those libraries, too. Sounds easy, right? But alas, it’s not as simple as one would like :) (Well, unless you’re happy…Continue reading How to copy dependent assemblies to the bin folder on build?
This article explains a couple of steps you might need to take when executing a Single-Device deployment from Visual Studio Code to an Azure IoT Edge device. Through a bit of trial and error, I learned quite a few things that might go wrong when VSCode is building your deployment manifest (the one that’ll be hosted under “config” folder and used for the deployment – that is). Background So a…Continue reading “Unable to retrieve IoT Edge informationIoT Edge configuration uses an unsupported schema and cannot be displayed.” after deploying from VS Code. What do?
In this article, I’m listing the quick fixes to your Azure Functions suddenly throwing seemingly random and very unexpected CORS errors. I have run into this so many times that I had to list these (admittedly simple) fixes in order of importance purely for myself – but perhaps some of these will help you as well! 😁 CORS issues can be frustrating but the issue is usually, simple to fix…Continue reading Azure Functions suddenly throwing CORS errors when ran locally? Easy fix(es)!
Here is another fun one for the books! In this article, I will explain how to fix a problem with the Azure IoT Edge dev simulator, when it fails to start due to an underlying problem with Docker not having access to your defined ports. This will probably happen to one of the ports used by the Edge Hub system module by default – 5671, 8883, or 443. Problem So,…Continue reading How to fix “Cannot start service edgeHubDev: Ports are not available: listen tcp 0.0.0.0:8883”
Another one in the series of “random things that break when you try to run Docker on Windows”! I was just minding my own business, trying to run an Azure IoT Edge custom module – a Docker container, really – locally, when suddenly everything broke and one of my Docker containers wouldn’t run anymore, which broke the rest of my stuff pretty badly. Instead, it failed with a cryptic and…Continue reading How to fix “exec user process caused: no such file or directory” in Docker on Windows?
This article explains how to achieve that nice configuration where you can reuse your .NET EF Core (Entity Framework Core) entities in different projects – even being separate from the project holding your DbContexts! You might want to do this if you have a common data model between a number of very different projects – but you will still need to have a way to add new migrations, apply the…Continue reading How to run EF Core commands when your entities are in a different project from your dbcontext?
One more article before Christmas! 😁 This time, I’ll be fixing a function that’s triggering based on new messages received through my IoT Hub in my Azure Functions project. Technically speaking, this is super simple to implement – your function needs to define an IoTHubTrigger, with an Event Hub name and usually a Connection String (I don’t know why I’m Sentence Casing that, too, but I’ll stick to it!) You…Continue reading How to fix “Microsoft.WindowsAzure.Storage: Server encountered an internal error. Please try again after some time.” when using IoTHub trigger for Azure Functions?
Another one in the series of “this should’ve been easy, but alas, you’re the edge case”. “You” being “me”, and the “edge case” being our internal npm feed (registry), for whatever reason. Ah, well – life would be extremely boring if everything always went according to documentation, right? So, instead of the built-in ways to access npm feeds, this solution includes some PowerShell. Ah – that’s when you know it’s…Continue reading How to authenticate against npm registries in Azure DevOps?
So a while back I posted about testing your “vanilla” WebSockets connection directly in the browser – and while that’s nice and easy, sometimes you need to class up a bit. In my case that meant upgrading to SignalR (for some corporate and enterprisey reasons as usual). It makes sense to leave behind the easy, simple, lightweight and somewhat transparent WebSockets to “upgrade” to the enterprise-ready (and arguably quite a…Continue reading How to test SignalR-connection in the browser?