Book Image

Learning Azure Functions

By : Mitesh Soni, Manisha Yadav
Book Image

Learning Azure Functions

By: Mitesh Soni, Manisha Yadav

Overview of this book

Functions help you easily run small pieces of code in cloud with Azure functions without worrying about a whole application or the infrastructure to run it. With Azure functions, you can use triggers to execute your code and bindings to simplify the input and output of your code. This book will start with the basics of Azure Functions. You will learn the steps to set up the environment and the tools that we will be using in the further chapters. Once you have a better understanding of this, we will be creating our first hello world function app. Later you will be introduced to triggers, how they are used to activate a function, and how binding can be used to output results of a function.You will also explore the steps to create an assembly with complex functionality that can be used by functions. Next, this book will teach you to scale your functions and use them to process data, integrate systems, and build simple APIs and microservices. Finally, this book will cover some diagnostic techniques with Azure App services and best practices of working with Azure Functions. By the end of this book, you will be well-versed with the techniques of scaling your Azure functions and making the most of serverless architecture.
Table of Contents (17 chapters)
Title Page
About the Authors
About the Reviewers
Customer Feedback

Pricing/hosting plans

For Azure Functions, the consumption plan and App Service Plan can both be utilized:

  • Consumption plan: In consumption plan hosting, we only pay for the time of execution of the function and not for the entire duration.
  • App Service plan: In App Service plan hosting, we need to pay for all the resources allocated under the App Service plan for the entire time the App Service plan exists:

In earlier chapters, we have utilized the consumption plan for all our functions. Go to App Services and verify the plan:

Go to Function Apps in Azure Portal and verify the App Service plan; it is the same as the consumption plan:

Let's see how to create Azure Functions in the App Service plan:

  1. Create a new Function App.
  2. In the App Service plan, click on Create New.
  3. Provide the App Service plan name, Location, and Pricing tier details.
  1. Click on OK:
  1. Click on Create to create the Function App in the App Service plan:
  1. Now, we have two Function Apps in the Azure dashboard available. One has the consumption...