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Go Cookbook

You're reading from Go Cookbook Build modular, readable, and testable applications in Go

Product type Paperback

Published in Jun 2017

Publisher Packt

ISBN-13 9781783286836

Length 400 pages

Edition 1st Edition

Languages

Go

Concepts

Programming Language

Author (1):

Torres

View More author details

Table of Contents (20) Chapters

Title Page

Credits

About the Author

About the Reviewer

www.PacktPub.com

Customer Feedback

Preface

1. I/O and File Systems FREE CHAPTER

2. Command-Line Tools

3. Data Conversion and Composition

4. Error Handling in Go

5. All about Databases and Storage

6. Web Clients and APIs

7. Microservices for Applications in Go

8. Testing

9. Parallelism and Concurrency

10. Distributed Systems

11. Reactive Programming and Data Streams

12. Serverless Programming

13. Performance Improvements, Tips, and Tricks

Structured logging with the apex and logrus packages

The primary reason to log information is to examine the state of the system when events occur or occurred in the past. Basic log messages are tricky to comb over when you have a large number of microservices that are logging.

There's a variety of third-party packages for combing over logs if you can get the logs into a data format they understand. These packages provide indexing functionality, searchability, and more. The sirupsen/logrus and apex/log packages provide a way to do structured logging where you can log a number of fields that can be reformatted to fit these third-party log readers. For example, it's simple to emit logs in the JSON format to be parsed by a variety of services.

Getting ready

Configure your environment according to these steps:

Refer to the Getting ready section of the Handling errors and the Error interface recipe.
Run the go get github.com/sirupsen/logrus command.
Run the go get github.com/apex/log command.

How to...

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Authors (1)

Torres

Torres

Aaron Torres received his master's degree in computer science from the New Mexico Institute of Mining and Technology. He has worked on distributed systems in high-performance computing and in large-scale web and microservices applications. He currently leads a team of Go developers that refines and focuses on Go best practices with an emphasis on continuous delivery and automated testing. Aaron has published a number of papers and has several patents in the area of storage and I/O. He is passionate about sharing his knowledge and ideas with others. He is also a huge fan of the Go language and open source for backend systems and development.

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