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storage_blob_async.py
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storage_blob_async.py
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# ------------------------------------
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.
# ------------------------------------
import os
import uuid
from azure.storage.blob.aio import BlobClient
from azure.core import exceptions
class StorageBlobAsync:
def __init__(self):
id = uuid.uuid1()
connectionString = os.environ["STORAGE_CONNECTION_STRING"]
self.blob = BlobClient.from_connection_string(
conn_str=connectionString,
container_name="mycontainer",
blob_name="pyTestBlob-" + id.hex + ".txt",
)
async def upload_blob(self):
print("uploading blob...")
self.data = "This is a sample data for Python Test"
await self.blob.upload_blob(self.data)
print("\tdone")
async def download_blob(self):
print("downloading blob...")
with open("./downloadedBlob.txt", "wb") as my_blob:
blob_data = await self.blob.download_blob()
await blob_data.readinto(my_blob)
print("\tdone")
async def delete_blob(self):
print("Cleaning up the resource...")
await self.blob.delete_blob()
print("\tdone")
async def run(self):
print("")
print("------------------------")
print("Storage - Blob")
print("------------------------")
print("1) Upload a Blob")
print("2) Download a Blob")
print("3) Delete that Blob (Clean up the resource)")
print("")
# Ensure that the blob does not exists before the tests
try:
await self.delete_blob()
except exceptions.AzureError:
pass
try:
await self.upload_blob()
await self.download_blob()
finally:
await self.delete_blob()