(Ruby) 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 Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require '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 = 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() + "\n";
    exit
end

# ----------------------------------------------------------------------------------------------
# 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 != true)
    print "Failed to load SAS token." + "\n";
    exit
end

# 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 != true)
    print "Failed to load JPG file." + "\n";
    exit
end

# 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 != true)
    print rest.lastErrorText() + "\n";
    exit
end

# 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().to_s() + "\n";
    print "response status text = " + rest.responseStatusText() + "\n";
    print "response header: " + rest.responseHeader() + "\n";
    print "response body (if any): " + sbResponse.getAsString() + "\n";
    print "---" + "\n";
    print "LastRequestStartLine: " + rest.lastRequestStartLine() + "\n";
    print "LastRequestHeader: " + rest.lastRequestHeader() + "\n";
    print "Failed." + "\n";
    exit
end

print "Success." + "\n";