Book Image

Implementing Event-Driven Microservices Architecture in .NET 7

By : Joshua Garverick, Omar Dean McIver
4 (1)
Book Image

Implementing Event-Driven Microservices Architecture in .NET 7

4 (1)
By: Joshua Garverick, Omar Dean McIver

Overview of this book

This book will guide you through various hands-on practical examples for implementing event-driven microservices architecture using C# 11 and .NET 7. It has been divided into three distinct sections, each focusing on different aspects of this implementation. The first section will cover the new features of .NET 7 that will make developing applications using EDA patterns easier, the sample application that will be used throughout the book, and how the core tenets of domain-driven design (DDD) are implemented in .NET 7. The second section will review the various components of a local environment setup, the containerization of code, testing, deployment, and the observability of microservices using an EDA approach. The third section will guide you through the need for scalability and service resilience within the application, along with implementation details related to elastic and autoscale components. You’ll also cover how proper telemetry helps to automatically drive scaling events. In addition, the topic of observability is revisited using examples of service discovery and microservice inventories. By the end of this book, you’ll be able to identify and catalog domains, events, and bounded contexts to be used for the design and development of a resilient microservices architecture.
Table of Contents (21 chapters)
1
Part 1:Event-Driven Architecture and .NET 7
6
Part 2:Testing and Deploying Microservices
12
Part 3:Testing and Deploying Microservices

Implementing custom telemetry capture

We will create a simple example that will allow us to not only see how the OpenTelemetry SDK works but also how Meter objects can be used to house many different counters and data points:

  1. Create a new Minimal API project in Visual Studio or with the dotnet command line. Here is the screenshot for the new Minimal API project:
Figure 13.1 – New project dialog in Visual Studio

Figure 13.1 – New project dialog in Visual Studio

Here is the screenshot for the dotnet command-line interface:

Figure 13.2 – Creating a Minimal API project from the dotnet CLI

Figure 13.2 – Creating a Minimal API project from the dotnet CLI

  1. Be sure to uncheck the Use controllers checkbox to use minimal APIs if using the new project dialog from Visual Studio:
Figure 13.3 – Additional Information page in the New Project dialog

Figure 13.3 – Additional Information page in the New Project dialog

  1. Add a NuGet reference to System.Diagnostics.DiagnosticSource and OpenTelemetry.Instrumentation.EventCounters:
    dotnet add package System...