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 4 – Session Management with Logic Apps and Service Bus

When working with Logic Apps as a distributed integration platform, we sometimes need to maintain the order in which messages are received. In integration terms, we call this pattern a sequential convoy.

In this exercise, we will go through the process of creating integration solutions with Azure Logic Apps and Service Bus to get a sequential flow of messages. We will use the session ID property of Service Bus with the Logic Apps Service Bus connector to route the messages to the backend system in the same order as they are received from the client application:

To illustrate this example, we will again take an example of a social media platform in which we are required to build a sequential pattern on a specific posts and comments made by multiple users within a specified time interval:

  1. The first step here...