Book Image

Azure Serverless Computing Cookbook - Third Edition

By : Praveen Kumar Sreeram
Book Image

Azure Serverless Computing Cookbook - Third Edition

By: Praveen Kumar Sreeram

Overview of this book

This third edition of Azure Serverless Computing Cookbook guides you through the development of a basic back-end web API that performs simple operations, helping you understand how to persist data in Azure Storage services. You'll cover the integration of Azure Functions with other cloud services, such as notifications (SendGrid and Twilio), Cognitive Services (computer vision), and Logic Apps, to build simple workflow-based applications. With the help of this book, you'll be able to leverage Visual Studio tools to develop, build, test, and deploy Azure functions quickly. It also covers a variety of tools and methods for testing the functionality of Azure functions locally in the developer's workstation and in the cloud environment. Once you're familiar with the core features, you'll explore advanced concepts such as durable functions, starting with a "hello world" example, and learn about the scalable bulk upload use case, which uses durable function patterns, function chaining, and fan-out/fan-in. By the end of this Azure book, you'll have gained the knowledge and practical experience needed to be able to create and deploy Azure applications on serverless architectures efficiently.
Table of Contents (14 chapters)
13
Index

Sending application telemetry details via email

One of the activities of our application, once live, will be able to receive a notification email with details regarding health, errors, response time, and so on, at least once a day.

In this recipe, we'll use the ability of Azure Functions' timer trigger to get all the required values from Application Insights and send the email using SendGrid. We'll look at how to do that in this recipe.

Getting ready

Perform the following steps in the first instance:

  1. This recipe is dependent on the application settings created in the previous recipe, Pushing custom metrics details to Application Insights Analytics. Please ensure to add them before running the code of this recipe.
  2. Create a new SendGrid account, if you do not already have one, and get the SendGrid API key.
  3. Create a new Application Insights account, if one has not been created already.
  4. Make sure that you have a running application that integrates...