/
logging.go
52 lines (42 loc) · 1.1 KB
/
logging.go
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package plugins
import (
"github.com/go-kit/kit/log"
"github.com/longjoy/micro-go-book/ch10-resiliency/use-string-service/service"
"time"
)
// loggingMiddleware Make a new type
// that contains Service interface and logger instance
type loggingMiddleware struct {
service.Service
logger log.Logger
}
// LoggingMiddleware make logging middleware
func LoggingMiddleware(logger log.Logger) service.ServiceMiddleware {
return func(next service.Service) service.Service {
return loggingMiddleware{next, logger}
}
}
func (mw loggingMiddleware) UseStringService(operationType, a, b string) (ret string, err error) {
defer func(begin time.Time) {
mw.logger.Log(
"function", "UseStringService",
"a", a,
"b", b,
"result", ret,
"took", time.Since(begin),
)
}(time.Now())
ret, err = mw.Service.UseStringService(operationType, a, b)
return ret, err
}
func (mw loggingMiddleware) HealthCheck() (result bool) {
defer func(begin time.Time) {
mw.logger.Log(
"function", "HealthChcek",
"result", result,
"took", time.Since(begin),
)
}(time.Now())
result = mw.Service.HealthCheck()
return
}