github.com/kaydxh/golang@v0.0.131/pkg/middleware/grpc-middleware/monitor/prometheus/metric_server.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  	"context"
    26  	"fmt"
    27  
    28  	grpc_ "github.com/kaydxh/golang/go/net/grpc"
    29  	time_ "github.com/kaydxh/golang/go/time"
    30  	logs_ "github.com/kaydxh/golang/pkg/logs"
    31  	"google.golang.org/grpc"
    32  	"google.golang.org/grpc/status"
    33  )
    34  
    35  // UnaryServerInterceptorOfTimer returns a new unary server interceptors that timing request
    36  func UnaryServerInterceptorOfTimer(enabledMetric bool) grpc.UnaryServerInterceptor {
    37  
    38  	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
    39  
    40  		tc := time_.New(true)
    41  		logger := logs_.GetLogger(ctx)
    42  		summary := func() {
    43  			tc.Tick(info.FullMethod)
    44  			if enabledMetric {
    45  				M.durationCost.WithLabelValues(info.FullMethod).Observe(float64(tc.Elapse().Milliseconds()))
    46  			}
    47  
    48  			logger.WithField("method", info.FullMethod).Infof(tc.String())
    49  		}
    50  		defer summary()
    51  
    52  		return handler(ctx, req)
    53  	}
    54  }
    55  
    56  // UnaryServerInterceptorOfCodeMessage returns a new unary server interceptors that timing request
    57  func UnaryServerInterceptorOfCodeMessage(enabledMetric bool) grpc.UnaryServerInterceptor {
    58  
    59  	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
    60  
    61  		peerAddr, _ := grpc_.GetIPFromContext(ctx)
    62  		var (
    63  			resp    interface{}
    64  			code    uint32
    65  			message string
    66  			err     error
    67  		)
    68  
    69  		logger := logs_.GetLogger(ctx)
    70  		summary := func() {
    71  			codeMessage := fmt.Sprintf("%d:%s", code, message)
    72  			if enabledMetric {
    73  				metircLabels := map[string]string{
    74  					MetircLabelMethod:      info.FullMethod,
    75  					MetircLabelClientIP:    peerAddr.String(),
    76  					MetircLabelCodeMessage: codeMessage,
    77  				}
    78  				M.calledTotal.With(metircLabels).Inc()
    79  			}
    80  
    81  			logger.WithField(
    82  				"method",
    83  				info.FullMethod,
    84  			).WithField(
    85  				"code_messge",
    86  				codeMessage,
    87  			).Infof(
    88  				"called by peer addr: %v",
    89  				peerAddr.String(),
    90  			)
    91  		}
    92  		defer summary()
    93  
    94  		resp, err = handler(ctx, req)
    95  		grpcErr, ok := status.FromError(err)
    96  		if ok {
    97  			code = uint32(grpcErr.Code())
    98  			message = grpcErr.Message()
    99  
   100  		}
   101  		return resp, err
   102  	}
   103  }