Ruby script to use Azure Blob Storage

Azure Blob storage is a service for storing large amounts of unstructured data, such as text or binary data, that can be accessed from anywhere in the world via HTTP or HTTPS. You can use Blob storage to expose data publicly to the world, or to store application data privately.

This post will show you how to perform common scenarios using the Azure Blob service. The samples are written using the Ruby API. The scenarios covered include uploading, listing, downloading, and deleting blobs.

You can download final ruby script from here.

This post assumes you have already created a storage account and a container.

• Type "gem install azure" in the command window to install the gem and dependencies.

• Import installed package in to the script file.

require "azure"

view raw blobstorage1.rb hosted with ❤ by GitHub

• Setup global parameters.

	Azure.config.storage_account_name = "account"
	Azure.config.storage_access_key = "xxxxxxxxxxxxxxx+xxxxxxxxxxxxxxxx/xxxx+xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=="
	CONTAINER = "container"
	AZURE_BLOB_SERVICE = Azure::BlobService.new

view raw blobstorage2.rb hosted with ❤ by GitHub

• Uploading a Blob into a Container

	def upload(input_path, blob_name)
	content = File.open(input_path, "rb") { |file| file.read }
	blob = AZURE_BLOB_SERVICE.create_block_blob(CONTAINER,
	blob_name, content)
	puts blob.name + " uploaded succesfully.."
	end

view raw blobstorage3.rb hosted with ❤ by GitHub

• List the Blobs in a Container

	def list()
	containers = AZURE_BLOB_SERVICE.list_containers()
	containers.each do |container|
	blobs = AZURE_BLOB_SERVICE.list_blobs(container.name)
	blobs.each do |blob|
	puts blob.name
	end
	end
	end

view raw blobstorage4.rb hosted with ❤ by GitHub

• Download Blobs

	def download(blob_name, output_file)
	blob, content = AZURE_BLOB_SERVICE.get_blob(CONTAINER,blob_name)
	File.open(output_file,"wb") {|f| f.write(content)}
	puts blob_name + " downloaded succesfully.."
	end

view raw blobstorage5.rb hosted with ❤ by GitHub

• Delete a Blob

	def delete(blob_name)
	AZURE_BLOB_SERVICE.delete_blob(CONTAINER, blob_name)
	puts blob_name + " deleted succesfully.."
	end

view raw blobstorage6.rb hosted with ❤ by GitHub