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Pragmatic Microservices with C# and Azure
Pragmatic Microservices with C# and Azure

Pragmatic Microservices with C# and Azure : Build, deploy, and scale microservices efficiently to meet modern software demands

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Pragmatic Microservices with C# and Azure

Introduction to .NET Aspire and Microservices

Welcome to creating a solution consisting of Microservices. The first chapter provides the foundations for the microservices solution that will be developed in this book.

Here, you will learn which features .NET Aspire offers for microservices. In this book, we create the Codebreaker solution. You will learn what Codebreaker is and the parts it consists of. In the last section of this chapter, you’ll learn which Azure services are used while we create the application on the tour up to the last chapter.

The first chapter lays the foundation.

In this chapter, you will learn about the advantages that are offered by .NET Aspire on creating microservices and you will gain the foundational knowledge needed to work with this technology, including how to define the app model, what it means for development and deployment, how service discovery is used, and how Azure resources are deployed while debugging the solution locally.

...

Technical requirements

In this chapter, you need .NET 8 with the .NET Aspire workload, either Visual Studio or Visual Studio Code, Docker Desktop, and a Microsoft Azure subscription. Information about the installation is explained in this chapter and the readme file of the source code repository.

The code for this chapter can be found in this GitHub repository: https://github.com/PacktPublishing/Pragmatic-Microservices-with-CSharp-and-Azure.

In the ch01 folder, you’ll see the projects with the results of this chapter. You’ll see these folders:

  • Aspire: This folder contains four projects created with a .NET Aspire template to run a .NET Aspire project including one service and a web application
  • Azure: This folder contains the same four projects from the previous folder, enhanced by using an Azure resource

Starting with .NET Aspire

.NET Aspire is a new .NET technology offering tools and libraries that help create, debug, and deploy .NET solutions built using microservices. With all the chapters of this book, we’ll take advantage of .NET Aspire.

Note

In this chapter, you’ll get a core understanding of how .NET Aspire works. In all the other chapters, we’ll make use of .NET Aspire and get into the details.

You can install it using the .NET Command Line Interface (CLI) or using Visual Studio 2022. The first version of .NET Aspire is based on .NET 8, thus at least .NET 8 is required to use .NET Aspire.

.NET Aspire requires .NET 8, and can be installed by installing a .NET workload:

dotnet workload install aspire

To see the workloads installed, and the version of .NET Aspire, use the following:

dotnet workload list

If you use Visual Studio, use the Visual Studio Installer, and select the .NET Aspire SDK component to install .NET Aspire.

.NET...

Codebreaker – the solution

The Codebreaker solution is a traditional game to solve a set of colors. With one game type, the player needs to place four colors (which can be duplicates) from a list of six different colors. The correct colors are chosen randomly by the game service. With every move the player makes, an answer is returned: for every color that is correct and positioned at the correct place, a black peg is returned. For every color that is correct but wrongly positioned, a white peg is returned. The player now has up to 12 moves to find the correct solution. Figure 1.4 shows a game run using a Blazor client application.

Figure 1.4 – Blazor client application

Figure 1.4 – Blazor client application

This gameplay shows that the solution was found after five moves. In this case, the correct result was yellow – black – red – black. The first selection was red – green – blue – yellow, with a result of two white pegs. With the fifth...

Using Microsoft Azure

To create and run the code from this book, you also need to have an Azure subscription. You can activate Microsoft Azure for free at https://azure.microsoft.com/free, which gives you an amount of about $200 Azure credits that are available for the first 30 days and several services that can be used for free for the time after.

What many developers miss is that if you have a Visual Studio Professional or Enterprise subscription, you also have a free amount of Azure resources every month. You just need to activate this with your Visual Studio subscription: https://visualstudio.microsoft.com/subscriptions/.

To create and manage resources, we use the Azure Portal, the Azure CLI, and the Azure Developer CLI. On Windows, you can install them with the following:

winget install Microsoft.AzureCLI
winget install Microsoft.Azd

To install these tools on Mac and Linux, check https://learn.microsoft.com/en-us/cli/azure/install-azure-cli and https://learn.microsoft...

Summary

In this chapter, you learned about the core features of .NET Aspire, which includes tooling, orchestration, and Aspire components. You learned how resources are connected by the Aspire app model, and how service discovery is done. You’ve seen how to create a manifest describing the app model, which can be used by tools to deploy the solution.

With the Codebreaker solution, you learned about the rules of the game and the parts of the application that are created from the second to the last chapter.

Now, you know the different Microsoft Azure services that are used by the Codebreaker solution when running in Azure. An alternative to these services is offered as well to run the complete solution in an on-premises environment (which can also be hosted in the Azure cloud this way).

From the next chapter on, we’ll start developing the Codebreaker solution. In Chapter 2, we will create REST services using ASP.NET Core minimal APIs to play games. We’ll...

Further reading

To learn more about the topics discussed in this chapter, you can refer to the following links:

Left arrow icon Right arrow icon
Download code icon Download Code

Key benefits

  • Benefit from step-by-step project-based guidance on how to develop a full-fledged microservices application
  • Gain extensive knowledge of microservices by covering essential concepts, tools, and methodologies
  • Use essential Microsoft Azure cloud-native services and as alternatives for on-premises environments
  • Purchase of the print or Kindle book includes a free PDF eBook

Description

Pragmatic Microservices with C# and Azure introduces .NET Aspire for microservices, focusing on defining an app model, utilizing service discovery, and integrating with Azure's native cloud services. Written by a Microsoft MVP and seasoned software architect with over two decades of experience in .NET, this book will help you get to grips with robust service development using .NET features like minimal APIs, gRPC, and SignalR for real-time communication. Aside from covering essential aspects of DevOps, including testing methodologies such as unit, integration, and load testing, you’ll also explore logging and monitoring including OpenTelemetry using tools like Azure Log Analytics, Application Insights, Prometheus, and Grafana. You'll learn about asynchronous communication leveraging queues and events through Azure Event Hub and Apache. Throughout the book, theoretical aspects will be complemented by practical skills gained from building and deploying a fully functional microservices-based application. By the end, you’ll possess a deep understanding of microservices architecture, hands-on experience with various .NET technologies and Azure services, and the ability to design, build, deploy, and manage microservices applications effectively in both on-premises and cloud environments.

Who is this book for?

This book is for software developers, architects, and engineers who are interested in adopting microservices architecture using the .NET framework and Microsoft Azure. Both intermediate and advanced developers who have a foundational understanding of C#, ASP.NET Core, and cloud computing concepts will find this book helpful.

What you will learn

  • Understand the advantages and practical applications of microservices
  • Utilize the cloud-ready .NET Aspire stack and tools for efficient development
  • Create robust RESTful APIs using ASP.NET Core minimal APIs
  • Implement seamless database integration with both relational and NoSQL databases
  • Containerize microservices with Docker for better scalability and management
  • Deploy microservices to the Azure Container Apps environment and Kubernetes for robust cloud solutions
  • Implement logging, metrics, and distributed tracing to ensure reliability and performance
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Table of Contents

22 Chapters
Part 1: Creating Microservices with .NET Chevron down icon Chevron up icon
Chapter 1: Introduction to .NET Aspire and Microservices Chevron down icon Chevron up icon
Chapter 2: Minimal APIs – Creating REST Services Chevron down icon Chevron up icon
Chapter 3: Writing Data to Relational and NoSQL Databases Chevron down icon Chevron up icon
Chapter 4: Creating Libraries for Client Applications Chevron down icon Chevron up icon
Part 2: Hosting and Deploying Chevron down icon Chevron up icon
Chapter 5: Containerization of Microservices Chevron down icon Chevron up icon
Chapter 6: Microsoft Azure for Hosting Applications Chevron down icon Chevron up icon
Chapter 7: Flexible Configurations Chevron down icon Chevron up icon
Chapter 8: CI/CD – Publishing with GitHub Actions Chevron down icon Chevron up icon
Chapter 9: Authentication and Authorization with Services and Clients Chevron down icon Chevron up icon
Part 3: Troubleshooting and Scaling Chevron down icon Chevron up icon
Chapter 10: All About Testing the Solution Chevron down icon Chevron up icon
Chapter 11: Logging and Monitoring Chevron down icon Chevron up icon
Chapter 12: Scaling Services Chevron down icon Chevron up icon
Part 4: More communication options Chevron down icon Chevron up icon
Chapter 13: Real-Time Messaging with SignalR Chevron down icon Chevron up icon
Chapter 14: gRPC for Binary Communication Chevron down icon Chevron up icon
Chapter 15: Asynchronous Communication with Messages and Events Chevron down icon Chevron up icon
Chapter 16: Running Applications On-Premises and in the Cloud Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

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Juan Sep 03, 2024
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A great book!
Subscriber review Packt
Di Herbert Feichtinger Jun 19, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Ever since his first book about .NET in 2002 Christian Nagel’s books are a permanent companion to my career as a developer, founder, CTO, teacher, and speaker. Therefore, I was expecting a new top-notch book and I am not disappointed.Code for the cloud is a different pair of shoes, compared to desktop and mobile applications. It requires knowledge of 24/7 operations, fault-tolerance, maintainability and so on. This book covers all the Azure aspects of cloud development and definitely fills a gap on your and my bookshelf.
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Jorge Deflon Jul 24, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I'm currently diving into "Pragmatic Microservices with C# and Azure" by Nagel, and so far, it's beenan enlightening journey. The author's approach to explaining how to develop microservices on the azure platform usingthe C# programming language and .Net Aspire components is clear and well-structured,making it accessible even for those new to the concepts.I appreciate how .Net Aspire is introduced and illustrated,covering the whole life cicle of microservices and how to develop,install,configure, public, monitor, scale, and secure them.with practical examples that are easy to follow.
Amazon Verified review Amazon
Alvin Ashcraft Jul 13, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I got a print copy of this new book a couple of weeks ago, and I've had some time to skim most of it and read several chapters in detail. The author does an excellent job of explaining what .NET Aspire is and why it's so important for cloud developers today. It simplifies so much of the infrastructure-type stuff so developers can spend more time writing apps/services.I have seen some Aspire demos at developer events this year, but this book helped me really *get* it. Outside of the .NET Aspire content, this book is also a great resource for learning about cloud app configuration, deployment, testing (with Playwright) and scaling. The gRPC and SignalR chapters we also very helpful to me.If you're a web developer who's already comfortable with .NET and Azure, this book will take your Azure/cloud skills up another notch. I love that Packt makes all of their sample code available on GitHub too. Definitely recommended.
Amazon Verified review Amazon
Roger Stepper Aug 06, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Talks you right through how to get started and how to dive in and start learning, as well as the principles. In software engineering, it is crucial to have the hands on aspects as well as the knowledge. The language is precise, concise, and crisp.
Amazon Verified review Amazon
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