anxi0uz
5a45c8b52e
- implement UpdateOrderStatus and GetOrdersReport service methods - implement all order, user handlers (UpdateMe, GetMyTrips, CancelOrder, GetOrder, etc.) - extract OrderServicer interface for testability - add Prometheus metrics middleware (requests total, duration) - fix GetAll storage flavor for PostgreSQL ($1 placeholders) - add 17 unit tests for order handlers via httptest - wire Grafana datasource and update Prometheus scrape config - update README with full API reference, pricing, roles, monitoring
52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
package handler
|
|
|
|
import (
|
|
"net/http"
|
|
"strconv"
|
|
"time"
|
|
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"github.com/prometheus/client_golang/prometheus/promauto"
|
|
)
|
|
|
|
var (
|
|
httpRequests = promauto.NewCounterVec(prometheus.CounterOpts{
|
|
Name: "logiflow_http_requests_total",
|
|
Help: "Количество HTTP запросов",
|
|
}, []string{"method", "path", "status"})
|
|
|
|
httpDuration = promauto.NewHistogramVec(prometheus.HistogramOpts{
|
|
Name: "logiflow_http_duration_seconds",
|
|
Help: "Время обработки HTTP запросов",
|
|
Buckets: prometheus.DefBuckets,
|
|
}, []string{"method", "path"})
|
|
)
|
|
|
|
func (s *Server) MiddlewareMetrics(next http.Handler) http.Handler {
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
start := time.Now()
|
|
|
|
wrapped := &statusRecorder{ResponseWriter: w, status: http.StatusOK}
|
|
next.ServeHTTP(wrapped, r)
|
|
|
|
httpRequests.WithLabelValues(
|
|
r.Method,
|
|
r.URL.Path,
|
|
strconv.Itoa(wrapped.status),
|
|
).Inc()
|
|
|
|
httpDuration.WithLabelValues(r.Method, r.URL.Path).
|
|
Observe(time.Since(start).Seconds())
|
|
})
|
|
}
|
|
|
|
type statusRecorder struct {
|
|
http.ResponseWriter
|
|
status int
|
|
}
|
|
|
|
func (r *statusRecorder) WriteHeader(status int) {
|
|
r.status = status
|
|
r.ResponseWriter.WriteHeader(status)
|
|
}
|