Book Image

Hands-On Microservices with C#

By : Matt Cole
Book Image

Hands-On Microservices with C#

By: Matt Cole

Overview of this book

C# is a powerful language when it comes to building applications and software architecture using rich libraries and tools such as .NET. This book will harness the strength of C# in developing microservices architectures and applications. This book shows developers how to develop an enterprise-grade, event-driven, asynchronous, message-based microservice framework using C#, .NET, and various open source tools. We will discuss how to send and receive messages, how to design many types of microservice that are truly usable in a corporate environment. We will also dissect each case and explain the code, best practices, pros and cons, and more. Through our journey, we will use many open source tools, and create file monitors, a machine learning microservice, a quantitative financial microservice that can handle bonds and credit default swaps, a deployment microservice to show you how to better manage your deployments, and memory, health status, and other microservices. By the end of this book, you will have a complete microservice ecosystem you can place into production or customize in no time.
Table of Contents (16 chapters)
11
Trello Microservice – Board Status Updating
12
Microservice Manager – The Nexus

Processing messages

After configuring our queue and exchange, we then subscribe to both the deployment start and stop messages. When our deployment start message arrives, we kick off our timer. If the deployment stop message arrives prior to our time limit, we will stop the timer without incident. If the deployment stop message does not arrive prior to our time limit, we will alert the user:

public void ProcessDeploymentStartMessage
(DeploymentStartMessage msg)
{
__deploymentTimer.Stop();
__deploymentTimer.Start();
}
public void ProcessDeploymentStopMessage(DeploymentStopMessage msg)
{
__deploymentTimer.Stop();
}

Publishing health status messages

When our health timer elapses, our _healthTimer_Elapsed method will be called. When this...