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
1
Section 1: Azure Functions 2.0 Fundamentals
5
Section 2: Azure Functions 2.0 Deployment and Automation
10
Section 3: Serverless Orchestration, API Management, and Event Processing
15
Section 4: Real-World Serverless Use Cases

Creating a new policy

Policies are an API Management capability that allows you to change the behavior of your exposed API using a configuration file and without changing your application code.

Policies can be defined on all the APIs of your API Management instance, on a single API, or on a single operation in an API, and finally, you can also add policies to a single product. Policies are a set of statements you can apply to an API request (before the request is routed to the backend services) or to the response (before the response is returned to the caller).

Using policies, you can authenticate the request, implement restriction policies (for example, set a usage quota for a subscription or limit the number of calls for a product), implement caching, rewrite the URL, transform a request or response payload from JSON to XML, and so on.

You can display the policies applied...