Everything is broken (a delicious lego meme)

“Unable to retrieve IoT Edge informationIoT Edge configuration uses an unsupported schema and cannot be displayed.” after deploying from VS Code. What do?

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…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?

Azure Functions suddenly throwing CORS errors when ran locally? Easy fix(es)!

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…Continue reading Azure Functions suddenly throwing CORS errors when ran locally? Easy fix(es)!

Azure IoT Edge is just Docker containers all the way

How to fix “Cannot start service edgeHubDev: Ports are not available: listen tcp 0.0.0.0:8883”

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…Continue reading How to fix “Cannot start service edgeHubDev: Ports are not available: listen tcp 0.0.0.0:8883”

How to fix “exec user process caused: no such file or directory” in Docker on Windows?

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…Continue reading How to fix “exec user process caused: no such file or directory” in Docker on Windows?

EF Core equals bonk - a quality Entity Framework meme right there.

How to run EF Core commands when your entities are in a different project from your dbcontext?

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…Continue reading How to run EF Core commands when your entities are in a different project from your dbcontext?

I'm not saying it was built with Azure Functions, but it was definitely built with Azure Functions.

How to fix “Microsoft.WindowsAzure.Storage: Server encountered an internal error. Please try again after some time.” when using IoTHub trigger for Azure Functions?

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…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?

How to authenticate against npm registries in Azure DevOps?

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…Continue reading How to authenticate against npm registries in Azure DevOps?

SignalRRRRRR meme. Fantastic use of my web hosting storage.

How to test SignalR-connection in the browser?

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…Continue reading How to test SignalR-connection in the browser?

How to update from deprecated Microsoft.Azure.Services.AppAuthentication to new and shiny Azure.Security.KeyVaults.Secrets?

So, a while ago I posted about a fairly simple way to write your code for fetching secrets (and other confidential stuff) from Azure Key Vault in such a way, that it would work the same way both in Azure and on your local dev box. I find this pretty…Continue reading How to update from deprecated Microsoft.Azure.Services.AppAuthentication to new and shiny Azure.Security.KeyVaults.Secrets?

How to fix “Unable to cast object of type ‘System.Net.Http.HttpRequestMessage’ to type ‘Microsoft.AspNetCore.Http.HttpRequest’.”

This article explains how to fix an issue where your Azure Functions function (yes, that’s a capital F and a lowercase f to denote the difference between the product and the piece of compute) fails to fire when a POST request comes in, even though it’s configured to do so,…Continue reading How to fix “Unable to cast object of type ‘System.Net.Http.HttpRequestMessage’ to type ‘Microsoft.AspNetCore.Http.HttpRequest’.”

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Category: DevTips