Support UseDevelopmentStorage=true; as connection string

[jongio]

• Package Name: azure.storage.blob
• Package Version: 12.2
• Operating System: windows
• Python Version: 3.8

Describe the bug

We should support local emulation with azure storage explorer and azurite. This was possible in old sdk.

Reported by customer here: https://stackoverflow.com/questions/60437824/blob-storage-connection-to-emulator-local-development-fail

To Reproduce

Run the storage emulator or azurite
Run this code:

import os, uuid
from azure.storage.blob import BlobServiceClient, BlobClient, ContainerClient

try:
    container_client = ContainerClient.from_connection_string("UseDevelopmentStorage=true;", "foo")
    container_client.create_container()

except Exception as ex:
    print('Exception:')
    print(ex)

You get this exception.

Connection string missing required connection details.

Expected behavior

It should work.

Workaround

Use full connection string:

container_client = ContainerClient.from_connection_string("DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://127.0.0.1:10000/devstoreaccount1;", "foo")

Related:
#372
#375

It was resolved in old sdk with is_emulated flag or EMULATED env variable
Azure/azure-storage-python#6

You can view the is_emulated impl here: https://github.com/Azure/azure-storage-python/search?utf8=%E2%9C%93&q=is_emulated&type=

[ghost]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @xgithubtriage

[xiafu-msft]

Hi @jongio

Thanks for your feedback! We will add this task to our backlog!

[ronbuchanan]

Where does this stand?

[Chotom]

Any update on this topic?

[Jan-Jasek]

@xiafu-msft Still lingering in the back log I assume?

[ddelange]

interestingly, according to tests, it should be supported in blob, queue, and tables 🤔

edit: nevermind, it tests that the string raises a ValueError 😅

[Macht59]

No update in 4 years. What a shame.

[ddelange]

I had a look at the link I posted in my last comment: it should be pretfy straight forward to amend that test: to assert that the client ends up with a proper full conn string.

I'm no maintainer but I'm sure that PRs are welcome 👍

[github-actions]

Hi @jongio, we deeply appreciate your input into this project. Regrettably, this issue has remained inactive for over 2 years, leading us to the decision to close it. We've implemented this policy to maintain the relevance of our issue queue and facilitate easier navigation for new contributors. If you still believe this topic requires attention, please feel free to create a new issue, referencing this one. Thank you for your understanding and ongoing support.