/
instrumenting.go
36 lines (31 loc) · 990 Bytes
/
instrumenting.go
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package service
import (
"context"
"fmt"
"time"
"github.com/go-kit/kit/metrics"
"github.com/yiv/yivgame/usercenter/center"
)
type serviceInstrumentingMiddleware struct {
requestCount metrics.Counter
requestLatency metrics.Histogram
next Service
}
func ServiceInstrumentingMiddleware(requestCount metrics.Counter, requestLatency metrics.Histogram) Middleware {
return func(next Service) Service {
return serviceInstrumentingMiddleware{
requestCount: requestCount,
requestLatency: requestLatency,
next: next,
}
}
}
//GetUserInfo 获取帐号详细信息
func (mw serviceInstrumentingMiddleware) GetUserInfo(ctx context.Context, id int64) (user *center.User, err error) {
defer func(begin time.Time) {
lvs := []string{"method", "GetUserInfo", "error", fmt.Sprint(err != nil)}
mw.requestCount.With(lvs...).Add(1)
mw.requestLatency.With(lvs...).Observe(time.Since(begin).Seconds())
}(time.Now())
return mw.next.GetUserInfo(ctx, id)
}