72 lines
1.7 KiB
Go
72 lines
1.7 KiB
Go
package fees
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import (
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto"
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feesv1 "github.com/tech/sendico/pkg/proto/billing/fees/v1"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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)
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var (
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metricsOnce sync.Once
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quoteRequestsTotal *prometheus.CounterVec
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quoteLatency *prometheus.HistogramVec
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)
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func initMetrics() {
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metricsOnce.Do(func() {
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quoteRequestsTotal = promauto.NewCounterVec(
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prometheus.CounterOpts{
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Namespace: "billing",
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Subsystem: "fees",
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Name: "requests_total",
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Help: "Total number of fee service requests processed.",
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},
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[]string{"call", "trigger", "status", "fx_used"},
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)
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quoteLatency = promauto.NewHistogramVec(
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prometheus.HistogramOpts{
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Namespace: "billing",
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Subsystem: "fees",
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Name: "request_latency_seconds",
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Help: "Latency of fee service requests.",
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Buckets: prometheus.DefBuckets,
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},
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[]string{"call", "trigger", "status", "fx_used"},
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)
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})
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}
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func observeMetrics(call string, trigger feesv1.Trigger, statusLabel string, fxUsed bool, took time.Duration) {
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triggerLabel := trigger.String()
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if trigger == feesv1.Trigger_TRIGGER_UNSPECIFIED {
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triggerLabel = "TRIGGER_UNSPECIFIED"
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}
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fxLabel := strconv.FormatBool(fxUsed)
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quoteRequestsTotal.WithLabelValues(call, triggerLabel, statusLabel, fxLabel).Inc()
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quoteLatency.WithLabelValues(call, triggerLabel, statusLabel, fxLabel).Observe(took.Seconds())
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}
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func statusFromError(err error) string {
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if err == nil {
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return "success"
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}
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st, ok := status.FromError(err)
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if !ok {
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return "error"
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}
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code := st.Code()
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if code == codes.OK {
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return "success"
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}
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return strings.ToLower(code.String())
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}
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