While working with a Cosmos DB Change Feed processor running as an Azure Function, I noticed that ‘requests’ are logged as Application Insights telemetry, but show up with no URL, and a response Code of 0. I was able to reproduce this using a lean example, generated from the func new generators. (Code available here: ) I’m trying to figure out why this is, so this is a kind of...
I’ve used Mediatr for some time, to reduce controller action bloat, and have spoken about it a few times, on how I use it to avoid the classic ‘xService’ pattern: Controller Action -> ‘Service’ -> Repo Lately, I’ve been doing a lot of work with Azure Functions, and would like to be able to use Mediatr, as I can in ASP.net Core. Up until recently, this has...
At ASOS, we’re currently migrating some of our message and event processing applications from Worker Roles (within classic Azure Cloud Services) to Azure Functions. A significant benefit of using Azure Functions to process our messages is the billing model. As an example, with our current approach, we use a Worker Role to listen to subscriptions to Azure Service Bus topics. These Worker Roles are...
By default, responses from Http Triggered Azure Functions are gzipped: Not all clients are able to handle this (although they should be) Turning it off isn’t particularly trivial. A change needs to be made to applicationhost.config – which is located in LocalSiteRoot/Config However, this file is readonly, so the change needs to be made via a xdt transform. In the Azure portal...
While developing an Azure Function application, using this tutorial, I encountered a problem. Ultimately, using `func new` generated my function (the run.csx file) which looked like this: public static void Run(string mySbMsg, TraceWriter log) { log.Info($"C# ServiceBus topic trigger function processed message: {mySbMsg}"); } Side note: the `mySbMsg` is important – it’s defined in the...