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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

Logging with the context package

This recipe will demonstrate a way to pass log fields between various functions. The Go pkg/context package is an excellent way to pass additional variables and cancelation between functions. This recipe will explore using this functionality to distribute variables between functions for logging purposes.

This style can be adapted to logrus or apex from the previous recipe. We'll use apex for this recipe.

Getting ready

Configure your environment according to these steps:

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