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.

How to do it...

These steps cover writing and running your application:

1. From your terminal/console application create and navigate to the chapter4/context directory.
2. Copy tests from https://github.com/agtorre/go-cookbook/tree/master/chapter4/context or use this as an exercise to write some of your own code.
3. Create a file called log.go with the following content:

     ...