Golang Log Interface
This is a small package that provides an interface for logger. The idea is to have logger interface and reuse it in the libraries, also providing an override point so applications that using libraries can provide their own implementation.
The interface provides only two levels of logging: debug (Print* functions) and error. There is no streams or adapters and log level threshold either. There are numerous reasons why:
- We have log aggregators like Splunk, LogStash, etc that can filter log level for us.
- Docker is the main delivery option nowadays and log adapter is usually setup there.
- Error log level is handy to setup log metrics and alerts based on them.
- Everything else doesn't need to be leveled and can be filtered by other criteria. For instance, correlation id.
Partially inspired by Dave Chaney's article about log levels.
go get github.com/dooman87/glogi
You can use this package as a dependency or just copy-paste interface of a logger:
package log
//Logger interface that provides only two log levels:
// * Print - is for all non-error messages
// * Error - for all errors
type Logger interface {
Printf(format string, v ...interface{})
Print(v ...interface{})
Errorf(format string, v ...interface{})
Error(v ...interface{})
}You can also use SimpleLogger implementation from the package.
PRs accepted.
MIT © Dmitry Pokidov