CkPython

REST File Streaming Upload

See more Azure Cloud Storage Examples

Demonstrates how to stream the REST body from a file. This example demonstrates a REST upload to the Azure Cloud Storage service. CkPython

import sys
import chilkat

success = False

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

rest = chilkat.CkRest()

# 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()

# Provide Azure Cloud credentials for the REST call.
azAuth = chilkat.CkAuthAzureStorage()
azAuth.put_AccessKey("AZURE_ACCESS_KEY")
# The account name used here should match the 1st part of the domain passed in the call to Connect (above).
azAuth.put_Account("chilkat")
azAuth.put_Scheme("SharedKey")
azAuth.put_Service("Blob")
# This causes the "x-ms-version: 2021-08-06" header to be automatically added.
azAuth.put_XMsVersion("2021-08-06")
success = rest.SetAuthAzureStorage(azAuth)

# Set some request headers.
success = rest.AddHeader("x-ms-blob-content-disposition","attachment; filename=\"hamlet.xml\"")
success = rest.AddHeader("x-ms-blob-type","BlockBlob")
success = rest.AddHeader("x-ms-meta-m1","v1")
success = rest.AddHeader("x-ms-meta-m2","v2")

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

fileStream = chilkat.CkStream()
fileStream.put_SourceFile("qa_data/xml/hamlet.xml")

# Upload to the Azure Cloud Storage service.
# The file is streamed, so the full file never has to completely reside in memory.
# The file is uploaded to the container named "test".
responseStr = rest.fullRequestStream("PUT","/test/hamlet.xml",fileStream)
if (rest.get_LastMethodSuccess() != True):
    print(rest.lastErrorText())
    sys.exit()

# When successful, the Azure Storage service will respond with a 201 response code,
# with an empty body.  Therefore, in the success condition, the responseStr is empty.
if (rest.get_ResponseStatusCode() == 201):
    print("File uploaded.")
else:
    # Examine the request/response to see what happened.
    print("response status code = " + str(rest.get_ResponseStatusCode()))
    print("response status text = " + rest.responseStatusText())
    print("response header: " + rest.responseHeader())
    print("response body (if any): " + responseStr)
    print("---")
    print("LastRequestStartLine: " + rest.lastRequestStartLine())
    print("LastRequestHeader: " + rest.lastRequestHeader())