Add detailed logging for responses in each handler (#110)

* Update probe_metrics_list.go

* Update probe_metrics_resource.go with detailed logging for responses

* Update probe_metrics_resourcegraph.go with detailed logging for responses

* Update probe_metrics_scrape.go with detailed logging for responses

* Update probe_metrics_subscription.go with detailed logging for responses

Author: WhitneyLampkin

probe_metrics_list.go

@@ -12,6 +12,8 @@ import (
 
 	"github.com/webdevops/azure-metrics-exporter/config"
 	"github.com/webdevops/azure-metrics-exporter/metrics"
+
+	"go.uber.org/zap"
 )
 
 func probeMetricsListHandler(w http.ResponseWriter, r *http.Request) {
@@ -90,4 +92,11 @@ func probeMetricsListHandler(w http.ResponseWriter, r *http.Request) {
 
 	h := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})
 	h.ServeHTTP(w, r)
+
+	latency := time.Since(startTime)
+	contextLogger.With(
+		zap.String("method", r.Method),
+		zap.Int("status", http.StatusOK),
+		zap.String("latency", latency.String()),
+	).Info("Request handled for /probe/metrics/list")
 }

probe_metrics_resource.go

@@ -12,6 +12,8 @@ import (
 
 	"github.com/webdevops/azure-metrics-exporter/config"
 	"github.com/webdevops/azure-metrics-exporter/metrics"
+
+	"go.uber.org/zap"
 )
 
 func probeMetricsResourceHandler(w http.ResponseWriter, r *http.Request) {
@@ -101,4 +103,11 @@ func probeMetricsResourceHandler(w http.ResponseWriter, r *http.Request) {
 
 	h := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})
 	h.ServeHTTP(w, r)
+
+	latency := time.Since(startTime)
+	contextLogger.With(
+		zap.String("method", r.Method),
+		zap.Int("status", http.StatusOK),
+		zap.String("latency", latency.String()),
+	).Info("Request handled for /probe/metrics/resource")
 }

probe_metrics_resourcegraph.go

@@ -12,6 +12,8 @@ import (
 
 	"github.com/webdevops/azure-metrics-exporter/config"
 	"github.com/webdevops/azure-metrics-exporter/metrics"
+
+	"go.uber.org/zap"
 )
 
 func probeMetricsResourceGraphHandler(w http.ResponseWriter, r *http.Request) {
@@ -100,4 +102,11 @@ func probeMetricsResourceGraphHandler(w http.ResponseWriter, r *http.Request) {
 
 	h := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})
 	h.ServeHTTP(w, r)
+
+	latency := time.Since(startTime)
+	contextLogger.With(
+		zap.String("method", r.Method),
+		zap.Int("status", http.StatusOK),
+		zap.String("latency", latency.String()),
+	).Info("Request handled for /probe/metrics/resourcegraph")
 }

probe_metrics_scrape.go

@@ -12,6 +12,8 @@ import (
 
 	"github.com/webdevops/azure-metrics-exporter/config"
 	"github.com/webdevops/azure-metrics-exporter/metrics"
+
+	"go.uber.org/zap"
 )
 
 func probeMetricsScrapeHandler(w http.ResponseWriter, r *http.Request) {
@@ -102,4 +104,11 @@ func probeMetricsScrapeHandler(w http.ResponseWriter, r *http.Request) {
 
 	h := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})
 	h.ServeHTTP(w, r)
+
+	latency := time.Since(startTime)
+	contextLogger.With(
+		zap.String("method", r.Method),
+		zap.Int("status", http.StatusOK),
+		zap.String("latency", latency.String()),
+	).Info("Request handled for /probe/metrics/scrape")
 }

probe_metrics_subscription.go

@@ -12,6 +12,8 @@ import (
 
 	"github.com/webdevops/azure-metrics-exporter/config"
 	"github.com/webdevops/azure-metrics-exporter/metrics"
+
+	"go.uber.org/zap"
 )
 
 func probeMetricsSubscriptionHandler(w http.ResponseWriter, r *http.Request) {
@@ -82,4 +84,11 @@ func probeMetricsSubscriptionHandler(w http.ResponseWriter, r *http.Request) {
 
 	h := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})
 	h.ServeHTTP(w, r)
+
+	latency := time.Since(startTime)
+	contextLogger.With(
+		zap.String("method", r.Method),
+		zap.Int("status", http.StatusOK),
+		zap.String("latency", latency.String()),
+	).Info("Request handled for /probe/metrics/subscription")
 }