vendor/github.com/go-kit/kit/examples/stringsvc2/logging.go

   1 package main
   2
   3 import (
   4         "time"
   5
   6         "github.com/go-kit/kit/log"
   7 )
   8
   9 type loggingMiddleware struct {
  10         logger log.Logger
  11         next   StringService
  12 }
  13
  14 func (mw loggingMiddleware) Uppercase(s string) (output string, err error) {
  15         defer func(begin time.Time) {
  16                 _ = mw.logger.Log(
  17                         "method", "uppercase",
  18                         "input", s,
  19                         "output", output,
  20                         "err", err,
  21                         "took", time.Since(begin),
  22                 )
  23         }(time.Now())
  24
  25         output, err = mw.next.Uppercase(s)
  26         return
  27 }
  28
  29 func (mw loggingMiddleware) Count(s string) (n int) {
  30         defer func(begin time.Time) {
  31                 _ = mw.logger.Log(
  32                         "method", "count",
  33                         "input", s,
  34                         "n", n,
  35                         "took", time.Since(begin),
  36                 )
  37         }(time.Now())
  38
  39         n = mw.next.Count(s)
  40         return
  41 }