Book Image

Azure Serverless Computing Cookbook

By : Praveen Kumar Sreeram
Book Image

Azure Serverless Computing Cookbook

By: Praveen Kumar Sreeram

Overview of this book

Microsoft provides a solution to easily run small segment of code in the Cloud with Azure Functions. Azure Functions provides solutions for processing data, integrating systems, and building simple APIs and microservices. The book starts with intermediate-level recipes on serverless computing along with some use cases on benefits and key features of Azure Functions. Then, we’ll deep dive into the core aspects of Azure Functions such as the services it provides, how you can develop and write Azure functions, and how to monitor and troubleshoot them. Moving on, you’ll get practical recipes on integrating DevOps with Azure functions, and providing continuous integration and continous deployment with Visual Studio Team Services. It also provides hands-on steps and tutorials based on real-world serverless use cases, to guide you through configuring and setting up your serverless environments with ease. Finally, you’ll see how to manage Azure functions, providing enterprise-level security and compliance to your serverless code architecture. By the end of this book, you will have all the skills required to work with serverless code architecture, providing continuous delivery to your users.

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Table of Contents (11 chapters)
Preface
Preface
What this book covers
What you need for this book
Who this book is for
Sections
Conventions
Reader feedback
Customer support
Free Chapter
1
Accelerate Your Cloud Application Development Using Azure Function Triggers and Bindings
Accelerate Your Cloud Application Development Using Azure Function Triggers and Bindings
Introduction
Building a backend Web API using HTTP triggers
Persisting employee details using Azure Storage table output bindings
Saving the profile images to Queues using Queue output bindings
Storing the image in Azure Blob storage
Cropping an image using ImageResizer trigger
2
Working with Notifications Using SendGrid and Twilio Services
Working with Notifications Using SendGrid and Twilio Services
Introduction
Sending an email notification to the administrator of the website using the SendGrid service
Sending an email notification to the end user dynamically
Implementing email logging in the Blob storage
Modifying the email content to include an attachment
Sending SMS notification to the end user using the Twilio service
3
Seamless Integration of Azure Functions with Other Azure Services
Seamless Integration of Azure Functions with Other Azure Services
Introduction
Using Cognitive Services to locate faces from the images
Azure SQL Database interactions using Azure Functions
Processing a file stored in OneDrive using an external file trigger
Monitoring tweets using Logic Apps and notifying when popular users tweet
Integrating Logic Apps with Azure Functions
4
Understanding the Integrated Developer Experience of Visual Studio Tools for Azure Functions
Understanding the Integrated Developer Experience of Visual Studio Tools for Azure Functions
Introduction
Creating the function app using Visual Studio 2017
Debugging C# Azure Functions on a local staged environment using Visual Studio 2017
Connecting to the Azure Cloud storage from local Visual Studio environment
Deploying the Azure Function app to Azure Cloud using Visual Studio
Debugging live C# Azure Function hosted on the Microsoft Azure Cloud environment using Visual Studio
5
Exploring Testing Tools for the Validation of Azure Functions
Exploring Testing Tools for the Validation of Azure Functions
Introduction
Testing Azure Functions
Testing an Azure Function on a staged environment using deployment slots
Load testing Azure Functions using VSTS
Creating and testing Azure Function locally using Azure CLI tools
Testing and validating Azure Function responsiveness using Application Insights
6
Monitoring and Troubleshooting Azure Serverless Services
Monitoring and Troubleshooting Azure Serverless Services
Introduction
Monitoring your Azure Functions
Monitoring Azure Functions using Application Insights
Pushing custom telemetry details to analytics of Application Insights
Sending application telemetry details via email
Integrating real-time AI monitoring data with Power BI using Azure Functions
7
Code Reusability and Refactoring the Code in Azure Functions
Code Reusability and Refactoring the Code in Azure Functions
Introduction
Creating a common code repository for better manageability within a function app
Shared code across Azure Functions using class libraries
Azure Functions and precompiled assemblies
Migrating legacy C# application classes to Azure Functions using PowerShell
Using strongly typed classes in Azure Functions
8
Developing Reliable and Durable Serverless Applications Using Durable Functions
Developing Reliable and Durable Serverless Applications Using Durable Functions
Introduction
Configuring Durable Functions in the Azure Management portal
Creating a hello world Durable Function app
Testing and troubleshooting Durable Functions
Implementing multithreaded reliable applications using Durable Functions
9
Implement Best Practices for Azure Functions
Implement Best Practices for Azure Functions
Adding multiple messages to a Queue using the IAsyncCollector function
Implementing defensive applications using Azure Functions and Queue triggers
Handling massive ingress using Event Hub for IoT and similar scenarios
Enabling authorization for function apps
Controlling access to Azure Functions using function keys
10
Implement Continuous Integration and Deployment of Azure Functions Using Visual Studio Team Services
Implement Continuous Integration and Deployment of Azure Functions Using Visual Studio Team Services
Introduction
Continuous integration - creating a build definition
Continuous integration - queuing the build and trigger manually
Configuring and triggering the automated build
Creating a release definition
Trigger the release automatically

Debugging C# Azure Functions on a local staged environment using Visual Studio 2017

Once the basic setup of creating the function is complete, the next step is to start working on developing the application as per your needs. Developing code on a daily basis is not at all a cake walk; developers will end up facing technical issues. They need tools to help them identify the root cause of the problem and fix it to make sure they are delivering the solution. These tools include debugging tools that help developers step into each line of the code and view the values of the variable and objects and get a detailed view of the exceptions.

In this recipe, you will learn how to configure and debug an Azure Function in a local development environment within Visual Studio.

Getting ready

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