(Chilkat2-Python) Upload using Azure Storage Account Shared Access Signature (SAS) Authorization

Sample code to upload binary bytes to a block blob in Azure Cloud Storage using an Azure Storage Account Shared Access Signature (SAS) Authorization. This creates a block blob, or replaces an existing block blob.

Note: The maximum size of a block blob created by uploading in a single step is 64MB. For larger files, the upload must be broken up into blocks. There is another Chilkat example for that..

Note: This example requires Chilkat v9.5.0.65 or later.

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

# Note: This example requires Chilkat v9.5.0.65 or greater.

# Azure Blob Service Example: Upload binary bytes to a block blob.
# This uses a Shared Access Signature (SAS) for Authorization.
# This creates a new block blob or replaces an existing one in its entirety.
# See also: https://msdn.microsoft.com/en-us/library/azure/dd179451.aspx

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

rest = chilkat2.Rest()

# Connect to the Azure Storage Blob Service
bTls = True
port = 443
bAutoReconnect = True
# In this example, the storage account name is "chilkat".
success = rest.Connect("chilkat.blob.core.windows.net",port,bTls,bAutoReconnect)
if (success != True):
    print(rest.LastErrorText)
    sys.exit()

# ----------------------------------------------------------------------------------------------
# The code above this comment could be placed inside a function/subroutine within the application
# because the connection does not need to be made for every request.  Once the connection is made
# the app may send many requests..
# ----------------------------------------------------------------------------------------------

# Note: The application does not need to explicitly set the following
# headers: Content-Length, x-ms-date, Authorization.  These headers
# are automatically set by Chilkat.

# Let's load a previously computed Azure Storage Account SAS token and use it.
# See How to Create an Azure Storage Account Shared Access Signature
sbToken = chilkat2.StringBuilder()
success = sbToken.LoadFile("qa_data/tokens/azureStorageAccountSas.txt","utf-8")
if (success != True):
    print("Failed to load SAS token.")
    sys.exit()

# Add the Shared Access Signature query params for authorization.
rest.AddQueryParams(sbToken.GetAsString())

# IMPORTANT: Make sure to set the x-ms-blob-type header:
success = rest.AddHeader("x-ms-blob-type","BlockBlob")

# IMPORTANT: Make sure to add the x-ms-date header.
# When the header name is "x-ms-date", Chilkat will recognize the keyword "NOW" 
# and will substitute the current system date/time formatted as required by Microsoft.
success = rest.AddHeader("x-ms-date","NOW")

# For this example, we'll just load a JPG file into memory..
binData = chilkat2.BinData()
success = binData.LoadFile("qa_data/jpg/starfish.jpg")
if (success != True):
    print("Failed to load JPG file.")
    sys.exit()

# Note: The maximum size of a block blob created by uploading in a single step is 64MB.  
# For larger files, the upload must be broken up into blocks.  There is another Chilkat example for that..
sbResponse = chilkat2.StringBuilder()
success = rest.FullRequestBd("PUT","/mycontainer/starfish.jpg",binData,sbResponse)
if (success != True):
    print(rest.LastErrorText)
    sys.exit()

# When successful, the Azure Storage service will respond with a 201 response status code,
# with no response body.
if (rest.ResponseStatusCode != 201):
    # Examine the request/response to see what happened.
    print("response status code = " + str(rest.ResponseStatusCode))
    print("response status text = " + rest.ResponseStatusText)
    print("response header: " + rest.ResponseHeader)
    print("response body (if any): " + sbResponse.GetAsString())
    print("---")
    print("LastRequestStartLine: " + rest.LastRequestStartLine)
    print("LastRequestHeader: " + rest.LastRequestHeader)
    print("Failed.")
    sys.exit()

print("Success.")