The go-utils Logging package provides handy methods for standardized logging.

To use the log package you must import the package.

import "github.com/eliona-smart-building-assistant/go-utils/log"

Optionally you can define an environment variable named LOG_LEVEL which sets the maximum level to be logged. Not defined the log packages takes the info log level as default.

export LOG_LEVEL=debug # This is optionally, default is info log level

After installation, you can use the logging like this:

import "github.com/eliona-smart-building-assistant/go-utils/log"

log.Info("start", "This could interest %d of %d people", 3, 4)
log.Debug("start", Usually nobody cares %s", "this")
log.Fatal("validate", "The house is on fire!") // exits with code 1

This produces the following output:

INFO    2022-05-03 15:34:41.770515      start   This could interest 3 of 4 people
DEBUG   2022-05-03 15:34:41.749597      start   Usually nobody cares this
FATAL   2022-05-03 15:34:41.770515      validate   The house is on fire!