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 2 – Asynchronous patterns for long-running APIs

Asynchronous communication patterns have important benefits in enterprise solution implementations. In async programming, the model client does not have to maintain an active thread to listen for an appropriate response from the backend system. Instead, the backend system will send a notification to the client when the system is ready to respond.

In Logic Apps, async patterns with APIs are implemented through polling and webhook patterns. In this exercise, we are going to cover both of these patterns so that whenever you are required to invoke long communications through Logic Apps, you can follow these patterns according to the requirements of your enterprise.

There are two asynchronous patterns that we can use in Logic Apps, which are described in the following sections:

  • The polling pattern
  • The webhook pattern
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