Call the starter function URI to initiate a new workflow.Make sure Azurite is running (you can use the docker run command shown above).Then run then func new and select the DurableFunctionsOrchestration template.In an empty folder run func init and select dotnet as the runtime.You can try all this out very easily if you have the Azure Functions Core Tools installed. But I find that often I'm using storage emulator for a quick throwaway experiment, and so it's nice to be able to easily clean up once I'm done.
I could do that by adding another parameter of -v c:/azurite:/data, which would allow my the contents of my emulated storage account to persist independently of the lifetime of the container. Note that in this example I'm not mounting a volume. Note that I've included port 10002 which is the port used by table storage, which is now supported by Azurite, and necessary for Durable Functions.
#Use azure storage emulator on a mac install#
There are several ways you can install and run Azurite including a VS Code extension or just with a simple npm install -g azurite.īut I wanted to try it out as a container, so I started it with the following command. Fortunately it appears to be good enough already to support local development of Durable Functions (and apparently Logic Apps too). You can check up in this issue to find out if it has gone GA yet. The good news is that there is now preview support for Table storage in Azurite. In particular, Azurite did not support Table Storage until recently, making it unsuitable for use with Durable Functions. However, until recently Azurite has been lacking a few important features that make it suitable to fully replace the older storage emulator. Azurite will continue to be updated to support the latest versions of Azure Storage APIs. Azurite supersedes the Azure Storage Emulator. The official documentation states:Īzurite is the future storage emulator platform. More recently Azurite, which is cross platform, and open source has emerged as the successor to the old Windows-only storage emulator. This is especially valuable if you are developing Durable Functions because they make use of a wide range of Azure Storage features including blobs, queues and table storage in order to implement task hubs. This is great as it saves you from having to create a real Azure Storage account whenever you want to experiment with Azure Functions. You may know that for many years there has been an Azure Storage Emulator that can be used for local development of Azure Functions on Windows. You should now be good to go and can now debug your functions.In this post I want to show how you can use the cross-platform Azurite Azure Storage emulator running as a Docker container to develop Durable Functions locally. We can then check that the Azure Storage Emulator is running again by checking the status and we can see IsRunning is now True: If you see IsRunning as False like above then you’re going to need to initialize and start the Azure Storage Emulator by running the commands below: To check if it’s started, run the command below: I resorted to the classic turn it off and on again and that still didn’t fix it.Įventually, it occurred to me to check that the Azure Storage Emulator was started and I found that it wasn’t. I found that all services were started and that even with the firewall disabled, I still had the issue. I figured that this may be a firewall issue or a problem with one of the services that wasn’t started so I tried to eliminate those causes. I figured I’d write up the solution for the next person who has this problem. : No connection could be made because the target machine actively refused it.”Īfter a Google search, I didn’t find much on the error message. : No connection could be made because the target machine actively refused it. “The listener for function 'MyFunction' was unable to start.
When debugging one of my Azure Functions in Visual Studio 2017, I got the error below:
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