Flask-Azure-Storage

A Flask extension that provides integration with Azure Storage

Table of Contents

• Flask-Azure-Storage
  • Install
  • Usage
  • Examples
    • Create container
    • Delete container
    • Upload a file
    • Delete a file
    • Check if file exists
  • More examples
  • Seamless integration with Flask's static assets ('static' folder)

Install

pip install Flask-Azure-Storage

Usage

Set the account credentials in your app.config:

AZURE_STORAGE_ACCOUNT_NAME = "your-account-name"
AZURE_STORAGE_ACCOUNT_KEY = "your-account-key"

Initialize the extension:

from flask import Flask
from flask.ext.azure_storage import FlaskAzureStorage

app = Flask(__name__)
azure_storage = FlaskAzureStorage(app)

Or, if you follow the Flask application factory pattern:

from flask import Flask
from flask.ext.azure_storage import FlaskAzureStorage

azure_storage = FlaskAzureStorage()

def create_app(config):
    app = Flask(__name__)
    app.config.from_object(config)
    # initialize azure storage on the app within create_app()
    azure_storage.init_app(app)

From the azure_storage object you can now access any of the following classes:

Attribute	Class
azure_storage.account	azure.storage.cloudstorageaccount.CloudStorageAccount
azure_storage.block_blob_service	azure.storage.blob.blockblobservice.BlockBlobService
azure_storage.page_blob_service	azure.storage.blob.pageblobservice.PageBlobService
azure_storage.append_blob_service	azure.storage.blob.appendblobservice.AppendBlobService
azure_storage.queue_service	azure.storage.queue.queueservice.QueueService
azure_storage.table_service	azure.storage.table.tableservice.TableService
azure_storage.file_service	azure.storage.file.fileservice.FileService

Examples

Create container

azure_storage.block_blob_service.create_container('container-name')

Delete container

azure_storage.block_blob_service.delete_container('container-name')

Upload a file

from azure.storage.blob import ContentSettings
azure_storage.block_blob_service.create_blob_from_path(container_name='container-name', blob_name='uploaded-file-name', file_path='/path/to/your/file.png', content_settings=ContentSettings(content_type='image'))

Delete a file

azure_storage.block_blob_service.delete_blob('container-name', 'uploaded-file-name')

Check if file exists

azure_storage.block_blob_service.exists('container-name', 'uploaded-file-name')

More examples

There are plenty more things you can do. For more examples, check out the Azure Storage SDK for Python samples

Seamless integration with Flask's static assets ('static' folder)

Automatically upload the static assets associated with a Flask application to Azure Storage.

You don't need to manually change your url_for calls, Flask-Azure-Storage will automatically target Azure where you call url_for('static', ...) in your Jinja themes.

This feature is based on flask-s3, intending to implement similar functionality based on the Azure Storage service. It is still under development so please report any issues.

To upload all your static files first set the following parameters in the app.config:

AZURE_STORAGE_ACCOUNT_NAME = "your-account-name"
AZURE_STORAGE_ACCOUNT_KEY = "your-account-key"
AZURE_STORAGE_CONTAINER_NAME = "your-container-name"  # make sure the container is created. Refer to the previous examples or to the Azure admin panel
AZURE_STORAGE_DOMAIN = 'your-account-base-domain'

Then you can call the method create_all from the python interpreter:

>>> from flask import current_app
>>> from flask.ext.azure_storage import create_all
>>> create_all(current_app)

Or, a better choice (if you use something like FLask-Script):

app = create_app(os.getenv('FLASK_CONFIG') or 'default')
manager = Manager(app)

@manager.command
def deploy_azure():
    from flask.ext.azure_storage import create_all
    create_all(app)

So now it is possible to simply call python manage.py deploy_azure to upload your assets.