Book Image

Mastering Azure Serverless Computing

By : Lorenzo Barbieri, Massimo Bonanni
Book Image

Mastering Azure Serverless Computing

By: Lorenzo Barbieri, Massimo Bonanni

Overview of this book

Application development has evolved from traditional monolithic app development to using serverless options and microservices. This book is designed to guide you through using Microsoft's Azure Functions to process data, integrate systems, and build simple APIs and microservices. You will discover how to apply serverless computing to speed up deployment and reduce downtime. You'll also explore Azure Functions, including its core functionalities and essential tools, along with understanding how to debug and even customize Azure Functions. In addition to this, the book will take you through how you can effectively implement DevOps and automation in your working environment. Toward the concluding chapters, you'll cover some quick tips, troubleshooting techniques, and real-world serverless use cases that will help you make the most of serverless computing. By the end of this book, you will have gained the skills you need to develop and deliver cost-effective Azure serverless solutions.
Table of Contents (19 chapters)
Free Chapter
Section 1: Azure Functions 2.0 Fundamentals
Section 2: Azure Functions 2.0 Deployment and Automation
Section 3: Serverless Orchestration, API Management, and Event Processing
Section 4: Real-World Serverless Use Cases

Creating a custom binding

You need to create a custom trigger when you want to run your Azure Function as a reaction to your custom events. In the example we saw in the previous section, we would like to run our function when the temperature of a city rises by a threshold: exceeding the threshold represents our custom event.

You must create a custom binding, instead, when you want to interact with an external data source within your Azure Function and you want to demand at runtime the responsibility for the creation and life cycle management of the binding. In that case, your function receives the instance of the binding from the runtime and doesn't care about its creation or release.

In fact, you also can interact with an external source by creating your data access class inside the body of the Azure Function (for example, using the constructor), but in this scenario, you...