Book Image

Azure Serverless Computing Cookbook - Third Edition

By : Praveen Kumar Sreeram
Book Image

Azure Serverless Computing Cookbook - Third Edition

By: Praveen Kumar Sreeram

Overview of this book

This third edition of Azure Serverless Computing Cookbook guides you through the development of a basic back-end web API that performs simple operations, helping you understand how to persist data in Azure Storage services. You'll cover the integration of Azure Functions with other cloud services, such as notifications (SendGrid and Twilio), Cognitive Services (computer vision), and Logic Apps, to build simple workflow-based applications. With the help of this book, you'll be able to leverage Visual Studio tools to develop, build, test, and deploy Azure functions quickly. It also covers a variety of tools and methods for testing the functionality of Azure functions locally in the developer's workstation and in the cloud environment. Once you're familiar with the core features, you'll explore advanced concepts such as durable functions, starting with a "hello world" example, and learn about the scalable bulk upload use case, which uses durable function patterns, function chaining, and fan-out/fan-in. By the end of this Azure book, you'll have gained the knowledge and practical experience needed to be able to create and deploy Azure applications on serverless architectures efficiently.
Table of Contents (14 chapters)
13
Index

Securely accessing an SQL database from Azure Functions using Managed Identity

Let's say an employee has changed the password of the account as per their firm's security policy (to rotate the password every month). The applications using that account now wouldn't be able to gain access. For developers, wouldn't it be good if there was a facility where we don't need to worry about the credentials and, instead, the framework took care of authentication? In this recipe, you will learn how to access an SQL database from an Azure function (using Visual Studio) without providing a user ID or password by using a feature called Managed Service Identity.

How to do it...

In this recipe, we are going to perform the following steps:

  1. Creating a function app using Visual Studio (if not done already)
  2. Creating an SQL database
  3. Enabling Managed Service Identity from the portal
  4. Allowing SQL Server access to the new Managed Service Identity
  5. Executing...