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Hands-On Microservices with C#
Hands-On Microservices with C#

Hands-On Microservices with C#: Designing a real-world, enterprise-grade microservice ecosystem with the efficiency of C# 7

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Hands-On Microservices with C#

ReflectInsight – Microservice Logging Redefined

Every developer needs to have a good logging tool. Unfortunately, what I mostly see happening is developers keeping up with the latest and greatest of everything but logging. Run it through Log4Net or NLog into a text file and that's it. No richness at all. Welcome to ReflectInsight.

In this chapter, we will:

  • Discuss ReflectInsight and how it provides rich logging capabilities
  • Discuss all the options available to configure ReflectInsight

If you have not used ReflectInsight from ReflectSoftware before, you are going to love this chapter. It is so incredibly important to have the right logging tool, especially in machine learning. You absolutely need to know what's going on inside your algorithm, and ReflectSoftware has the richest logging capabilities around. Especially when it comes to machine learning algorithms...

Router

The router is the central part of the logging system. All log messages are sent to the router, which can distribute the messages from there to listeners such as viewers, text files, binary files, event logs, and databases. You would typically have the router installed on a separate machine from the rest of your logging system, but you do not have to. Once installed and configured (the configuration out of the box is usually suitable for most situations), the router runs as a Windows service and has no user interface:

Log Viewer

The Log Viewer is designed to view historical log files that have been saved either manually or from the router/viewer configuration. If you are streaming a high number of messages through the system, you will no doubt collect a lot of log files that may need to be viewed. I wrote an enterprise-grade microservice system for a client that used ReflectInsight at the center of its system, and streamed messages to and through a RabbitMQ system. On average, we streamed roughly one million messages a day (it is still used in production), and, when problems arose, the Log Viewer's historical logging capabilities were invaluable:

Live Viewer

The Live Viewer is what you will use most of the time to view your real-time logging. The capabilities of the Live Viewer are extensive to say the least. Briefly, the high-performance logging allows us to monitor instrumented applications in real time by displaying log messages in the Live Viewer. We can log incredibly rich details such as Exceptions, Objects, Datasets, Images, Process and Thread Information, and Well-Formatted XML. We can also quickly and easily navigate and trace through our applications to find the information we need. The Message Details panel displays the extended details of the selected message. The details could be as simple as the message itself, or complex data such as an object, dataset, binary blob, image, process and thread information, and the content of a collection. Syntax highlighting is available for select message, types such as SQL...

Message navigation

ReflectInsight supports many ways in which to navigate through your logged messages.

You can navigate by using one of the following methods:

  • Find a matching Enter/Exit method block
  • Jump to a parent Enter/Exit method block
  • Jump from any message in a User Defined view to the All Messages view
  • Go to a message by Line Number
  • Advanced Search
  • Quick Search (active view only)
  • Message Type browse navigator
  • Bookmarks

Message properties

This panel allows us to further inspect a selected message. We can view various Date Time values, Time Zone, Process Id, Thread Id, Request Id, Category, Machine Name, and so on. We can also extend the message Properties panel by attaching user-defined properties to single or multiple...

Advanced Search

Here is what the Advanced Search dialog looks like. As you can see, you can select the message types as well as many other options that you wish to view:

The viewer provides two ways to search messages by criteria.

Quick Search

This is mainly used for simple and quick text-based searching.

Advanced Search

This is primarily used to search messages where a more complex search criterion is needed. Search criteria can include a combination of the following:

  • Message Contents
  • Message Type
  • Message Contents AND Type
  • Message Contents OR Type
  • In addition to Regular...

Time zone formatting

We can display our time details in either Standard or Military time formats. Select the Time Zone Type that best suits your location, such as Source, Local, UTC, or Custom by choosing from one of the available system time zones:

Auto Save/Purge

This is what the Auto Save/Purge section looks like:

Apart from the library's ability to Auto Save rolling log files, the Live Viewer has similar capabilities in addition to Auto Purge the top portion of a rolling log file. You can configure the Live Viewer to either Auto Save or Auto Purge by applying one of the following methods.

Auto Save

This method forces the Live Viewer to save files once a specific criterion has been met (that is on a new day and/or message limit).

Auto Purge

This method forces the Live Viewer to purge the top portion of the...

Configuration Editor

In this section, we will cover the things that you need to know about the configuration editor.

Overview

We can use the XML-based configuration file with our applications to make the ReflectInsight viewer behave the way we want it to. There are a few configuration categories, including auto save, filtering, and message coloring.

XML configuration

ReflectInsight is configured using an XML configuration file. The configuration information can be embedded within other XML configuration files such as the application or web .config file, or in a separate...

Summary

In this chapter, we learned about ReflectInsight and the incredible benefits it can provide you with . We saw how it can help a machine learning developer see exactly what is going on inside their algorithm. I encourage you to download your copy and try it out. You will never look at logging the same way again.

Exercises

  1. Configure the Live Viewer to meet your specific needs
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Key benefits

  • Learn to build message-based microservices
  • Packed with case studies to explain the intricacies of large-scale microservices
  • Build scalable, modular, and robust architectures with C#

Description

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.

Who is this book for?

C# developers, software architects, and professionals who want to master the art of designing the microservice architecture that is scalable based on environment. Developers should have a basic understanding of.NET application development using C# and Visual Studio

What you will learn

  • Explore different open source tools within the context of designing microservices
  • Learn to provide insulation to exception-prone function calls
  • Build common messages used between microservices for communication
  • Learn to create a microservice using our base class and interface
  • Design a quantitative financial machine microservice
  • Learn to design a microservice that is capable of using Blockchain technology
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Publication date : Jun 29, 2018
Length: 254 pages
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Language : English
ISBN-13 : 9781789533682
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Table of Contents

15 Chapters
Let's Talk Microservices, Messages, and Tools Chevron down icon Chevron up icon
ReflectInsight – Microservice Logging Redefined Chevron down icon Chevron up icon
Creating a Base Microservice and Interface Chevron down icon Chevron up icon
Designing a Memory Management Microservice Chevron down icon Chevron up icon
Designing a Deployment Monitor Microservice Chevron down icon Chevron up icon
Designing a Scheduling Microservice Chevron down icon Chevron up icon
Designing an Email Microservice Chevron down icon Chevron up icon
Designing a File Monitoring Microservice Chevron down icon Chevron up icon
Creating a Machine Learning Microservice Chevron down icon Chevron up icon
Creating a Quantitative Financial Microservice Chevron down icon Chevron up icon
Trello Microservice – Board Status Updating Chevron down icon Chevron up icon
Microservice Manager – The Nexus Chevron down icon Chevron up icon
Creating a Blockchain Bitcoin Microservice Chevron down icon Chevron up icon
Adding Speech and Search to Your Microservice Chevron down icon Chevron up icon
Best Practices Chevron down icon Chevron up icon

Customer reviews

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Chicco Oct 25, 2018
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Il libro è troppo caro per sole 240 pagine. Gli argomenti sarebbero anche interessanti ma non appena cominci a leggere il codice che NON ha alcuna indentazione ti passa la voglia di continuare (vedi immagine allegata). Peccato perchè negli ultimi tempi i libri della Packt sono interessanti, purtroppo questo è uscito proprio male.
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