forked from go-kit/kit
/
logging.go
47 lines (39 loc) · 800 Bytes
/
logging.go
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package main
import (
"time"
"github.com/go-kit/kit/log"
)
func loggingMiddleware(logger log.Logger) ServiceMiddleware {
return func(next StringService) StringService {
return logmw{logger, next}
}
}
type logmw struct {
logger log.Logger
StringService
}
func (mw logmw) Uppercase(s string) (output string, err error) {
defer func(begin time.Time) {
_ = mw.logger.Log(
"method", "uppercase",
"input", s,
"output", output,
"err", err,
"took", time.Since(begin),
)
}(time.Now())
output, err = mw.StringService.Uppercase(s)
return
}
func (mw logmw) Count(s string) (n int) {
defer func(begin time.Time) {
_ = mw.logger.Log(
"method", "count",
"input", s,
"n", n,
"took", time.Since(begin),
)
}(time.Now())
n = mw.StringService.Count(s)
return
}