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log.go
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log.go
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package tgbotapi
import (
"errors"
stdlog "log"
"os"
)
// BotLogger is an interface that represents the required methods to log data.
//
// Instead of requiring the standard logger, we can just specify the methods we
// use and allow users to pass anything that implements these.
type BotLogger interface {
Println(v ...interface{})
Printf(format string, v ...interface{})
}
var log BotLogger = stdlog.New(os.Stderr, "", stdlog.LstdFlags)
// SetLogger specifies the logger that the package should use.
func SetLogger(logger BotLogger) error {
if logger == nil {
return errors.New("logger is nil")
}
log = logger
return nil
}