Azure Storage Emulator
Azure Storage Emulator
Overview
The Azure Storage Emulator is a free tool that runs locally to mimic an Azure storage account, and is used when developing programmes that call such accounts, including Azure functions.
The legacy Azure Storage Emulator has been replaced by an npm-based tool called Azurite
Useful tips
If an Azure Funcitons project won't start locally with errors such as "Azure.Core: Retry failed after 6 tries. Retry settings can be adjusted in ClientOptions.Retry" this may be because Azurite is not running, or not running on the expected ports. (10000-10002).
This is often because of another Functions project already starting the emuilator (e.g. two instances of Visual Studio open).
Look for errors in the Output / Service Dependencies window in Visual Studio.
You can check what is running on port 10000 like this:
netstat -p tcp -ano | findstr :10000
which will return a result like this if there is a process using that port:
TCP 127.0.0.1:10000 0.0.0.0:0 LISTENING 45868
In that example you can use kill <task id> to kill that process.
(See this thread)