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Go Cookbook

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

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Product type Paperback
Published in Jun 2017
Publisher Packt
ISBN-13 9781783286836
Length 400 pages
Edition 1st Edition
Languages
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Author (1):
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Aaron Torres Aaron Torres
Author Profile Icon Aaron Torres
Aaron Torres
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Toc

Table of Contents (14) Chapters Close

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

Using the log package and understanding when to log errors

Logging should typically occur when an error is the final result. In other words, it's useful to log when something exceptional or unexpected occurs. It might also be appropriate, if you use a log that provides log levels, to sprinkle debug or info statements at key parts of your code to quickly debug issues during development. Too much logging will make it difficult to find anything useful, but not enough logging can result in broken systems with no insight into the root cause. This recipe will demonstrate the use of the default Go log package and some useful options and showcase when a log should probably occur.

Getting ready

Configure your environment according...

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