github.com/kaydxh/golang@v0.0.131/pkg/middleware/http-middleware/monitor/prometheus/metric.interceptor.go (about)

     1  /*
     2   *Copyright (c) 2022, kaydxh
     3   *
     4   *Permission is hereby granted, free of charge, to any person obtaining a copy
     5   *of this software and associated documentation files (the "Software"), to deal
     6   *in the Software without restriction, including without limitation the rights
     7   *to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     8   *copies of the Software, and to permit persons to whom the Software is
     9   *furnished to do so, subject to the following conditions:
    10   *
    11   *The above copyright notice and this permission notice shall be included in all
    12   *copies or substantial portions of the Software.
    13   *
    14   *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    15   *IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    16   *FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    17   *AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    18   *LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    19   *OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    20   *SOFTWARE.
    21   */
    22  package interceptorprometheus
    23  
    24  import (
    25  	"fmt"
    26  	"net/http"
    27  
    28  	time_ "github.com/kaydxh/golang/go/time"
    29  	logs_ "github.com/kaydxh/golang/pkg/logs"
    30  	prometheus_ "github.com/kaydxh/golang/pkg/monitor/prometheus"
    31  )
    32  
    33  func InterceptorOfTimer(enabledMetric bool) func(handler http.Handler) http.Handler {
    34  	return func(handler http.Handler) http.Handler {
    35  		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
    36  			tc := time_.New(true)
    37  			logger := logs_.GetLogger(r.Context())
    38  			summary := func() {
    39  				tc.Tick(r.Method)
    40  				if enabledMetric {
    41  					prometheus_.M.DurationCost.WithLabelValues(
    42  						r.Method,
    43  					).Observe(
    44  						float64(tc.Elapse().Milliseconds()),
    45  					)
    46  				}
    47  
    48  				logger.WithField("method", fmt.Sprintf("%s %s", r.Method, r.URL.Path)).Infof(tc.String())
    49  			}
    50  			defer summary()
    51  
    52  			handler.ServeHTTP(w, r)
    53  		})
    54  
    55  	}
    56  
    57  }