github.com/livekit/protocol@v1.39.3/webhook/stats.go (about)

     1  // Copyright 2023 LiveKit, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package webhook
    16  
    17  import (
    18  	"sync"
    19  
    20  	"github.com/prometheus/client_golang/prometheus"
    21  	"github.com/prometheus/client_golang/prometheus/promauto"
    22  )
    23  
    24  var (
    25  	promWebhookDispatchTotal        *prometheus.CounterVec
    26  	promWebhookQueueLengthHistogram prometheus.Histogram
    27  
    28  	promWebhookInitOnce sync.Once
    29  )
    30  
    31  func InitWebhookStats(constLabels prometheus.Labels) {
    32  	promWebhookInitOnce.Do(func() { initWebhookStats(constLabels) })
    33  }
    34  
    35  func initWebhookStats(constLabels prometheus.Labels) {
    36  	promWebhookDispatchTotal = promauto.NewCounterVec(prometheus.CounterOpts{
    37  		Namespace:   "livekit",
    38  		Subsystem:   "webhook",
    39  		Name:        "dispatch_total",
    40  		ConstLabels: constLabels,
    41  	}, []string{"status", "reason"})
    42  
    43  	promWebhookQueueLengthHistogram = promauto.NewHistogram(prometheus.HistogramOpts{
    44  		Namespace:   "livekit",
    45  		Subsystem:   "webhook",
    46  		Name:        "queue_length",
    47  		ConstLabels: constLabels,
    48  		Buckets:     []float64{1, 2, 3, 4, 5, 10, 20, 40, 80},
    49  	})
    50  }
    51  
    52  func IncDispatchSuccess() {
    53  	promWebhookDispatchTotal.WithLabelValues("success", "").Inc()
    54  }
    55  
    56  func IncDispatchFailure() {
    57  	promWebhookDispatchTotal.WithLabelValues("failure", "").Inc()
    58  }
    59  
    60  func IncDispatchDrop(reason string) {
    61  	promWebhookDispatchTotal.WithLabelValues("drop", reason).Inc()
    62  }
    63  
    64  func RecordQueueLength(queueLength int) {
    65  	promWebhookQueueLengthHistogram.Observe(float64(queueLength))
    66  }