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

Enabling authorization for function apps

If your web API (HTTP trigger) is being used by multiple client applications and you would like to provide access only to the intended and authorized applications, then you need to implement authorization in order to restrict access to your Azure function.

In this recipe, you are going to learn how to enable authorization in Azure Functions and will gain clarity on the different types of authorization.

Getting ready

You should know by now how to create an HTTP trigger function. Download the Postman tool from www.getpostman.com/. The Postman tool is used for sending HTTP requests. You can also use any tool or application that can send HTTP requests and headers.

How to do it…

In this section, we'll create and test the HTTP trigger's authorization functionality by performing the following steps:

  1. Create a new HTTP trigger function (or open an existing HTTP function). When creating the function, select Function...