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

Testing and troubleshooting durable functions

In Chapter 5, Exploring testing tools for Azure functions, we discussed various ways of testing Azure functions. We can test durable functions with the same set of tools. However, the approach to testing is entirely different, as regular Azure functions implement one functionality and durable functions help us to achieve durable workflows.

In this recipe, you'll learn how to test and check the status of a durable function.

Getting ready

Download and install the following if you haven't done so already:

How to do it...

Perform the following steps:

  1. Navigate to the code editor of the HttpStart function and copy the URL by clicking on </>Get function URL. Replace the {functionName} template value with DurableFuncManager.
  2. Make a...