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

Sharing code across Azure functions using class libraries

Let's say that we have developed a common library across various applications being used in our project, such as a web app or a Windows Presentation Foundation (WPF) application, and now we would like to re-use some functionality in an Azure function app. It's definitely possible to re-use it. In this recipe, we'll develop and create a new .dll file and we'll learn how to use the classes and their methods in Azure functions.

How to do it…

Let's create a class library by performing the following steps:

  1. Create a new Class Library application using Visual Studio as shown in Figure 10.7:
    Creating a new class library application
    Figure 10.7: Visual Studio—creating a class library project
  2. Create a new class named Helper and paste the following code in the new class file:
    namespace Utilities
    {
        public class Helper
        {
          public static string...