Azure SDKs for .NET, Java, Node.js

All Azure services have REST APIs. Most of management can be done from web Portal,
PowerShell and Azure CLI. For efficient automation there are also SDKs.

Getting Started with Azure Management Libraries for Java | Blog | Microsoft Azure

• Azure SDK for .NET 
• Azure SDK for Node.js 
• Storage team's Java SDK
• Java SDK for service management @ GitHub

Azure Podcast: Episode 154 - Simpler Management Libraries