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(Perl) 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.

Chilkat Perl Downloads

Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

# 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 = chilkat::CkRest->new();

# Connect to the Azure Storage Blob Service
$bTls = 1;
$port = 443;
$bAutoReconnect = 1;
# In this example, the storage account name is "chilkat".
$success = $rest->Connect("chilkat.blob.core.windows.net",$port,$bTls,$bAutoReconnect);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    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 = chilkat::CkStringBuilder->new();
$success = $sbToken->LoadFile("qa_data/tokens/azureStorageAccountSas.txt","utf-8");
if ($success != 1) {
    print "Failed to load SAS token." . "\r\n";
    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 = chilkat::CkBinData->new();
$success = $binData->LoadFile("qa_data/jpg/starfish.jpg");
if ($success != 1) {
    print "Failed to load JPG file." . "\r\n";
    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 = chilkat::CkStringBuilder->new();
$success = $rest->FullRequestBd("PUT","/mycontainer/starfish.jpg",$binData,$sbResponse);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

# When successful, the Azure Storage service will respond with a 201 response status code,
# with no response body.
if ($rest->get_ResponseStatusCode() != 201) {
    # Examine the request/response to see what happened.
    print "response status code = " . $rest->get_ResponseStatusCode() . "\r\n";
    print "response status text = " . $rest->responseStatusText() . "\r\n";
    print "response header: " . $rest->responseHeader() . "\r\n";
    print "response body (if any): " . $sbResponse->getAsString() . "\r\n";
    print "---" . "\r\n";
    print "LastRequestStartLine: " . $rest->lastRequestStartLine() . "\r\n";
    print "LastRequestHeader: " . $rest->lastRequestHeader() . "\r\n";
    print "Failed." . "\r\n";
    exit;
}

print "Success." . "\r\n";

 

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