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