Book Image

Serverless Integration Design Patterns with Azure

By : Abhishek Kumar, Srinivasa Mahendrakar
Book Image

Serverless Integration Design Patterns with Azure

By: Abhishek Kumar, Srinivasa Mahendrakar

Overview of this book

With more enterprises adapting cloud-based and API-based solutions, application integration has become more relevant and significant than ever before. Parallelly, Serverless Integration has gained popularity, as it helps agile organizations to build integration solutions quickly without having to worry about infrastructure costs. With Microsoft Azure’s serverless offerings, such as Logic Apps, Azure Functions, API Management, Azure Event Grid and Service Bus, organizations can build powerful, secure, and scalable integration solutions with ease. The primary objective of this book is to help you to understand various serverless offerings included within Azure Integration Services, taking you through the basics and industry practices and patterns. This book starts by explaining the concepts of services such as Azure Functions, Logic Apps, and Service Bus with hands-on examples and use cases. After getting to grips with the basics, you will be introduced to API Management and building B2B solutions using Logic Apps Enterprise Integration Pack. This book will help readers to understand building hybrid integration solutions and touches upon Microsoft Cognitive Services and leveraging them in modern integration solutions. Industry practices and patterns are brought to light at appropriate opportunities while explaining various concepts.
Table of Contents (15 chapters)

Example 1 – Debatching in Logic Apps with the splitOn property and Azure Functions change feed with Cosmos DB

The splitOn property in Logic Apps debatches an item array and starts a new instance of Logic Apps for each item in the array list. In this example, we will be using the Cosmos graph change feed as an example of an item array and use logic apps and Azure Functions together to build an integration that will write the changed feed data into the Azure SQL database.

Whenever there is a change to one or more user documents in the Cosmos graph database, Azure Functions will trigger a Logic Apps endpoint, which will have the splitOn property set on the request trigger.

Logic Apps will send an email notification to a user to indicate that their profile has been updated. These change requests will also be synced with the Logic Apps unique identifier into an Azure SQL database...