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authorChristine Dodrill <me@christine.website>2019-12-09 10:48:40 -0500
committerGitHub <noreply@github.com>2019-12-09 10:48:40 -0500
commiteb26857c1d5973bedc91c3fc1acaf4434809bbd5 (patch)
tree926be802355da24afb3cf6ed8496a2b2d656e1a1 /internal/middleware
parent583cf248b3fe7ebb06d89ba32fddeee70fb14c2c (diff)
downloadxesite-eb26857c1d5973bedc91c3fc1acaf4434809bbd5.tar.xz
xesite-eb26857c1d5973bedc91c3fc1acaf4434809bbd5.zip
Within package layout (#102)
* blog: go package layout * eat my own dogfood * internal: test date * blog/go-package-layout: streamline * oops
Diffstat (limited to 'internal/middleware')
-rw-r--r--internal/middleware/metrics.go43
-rw-r--r--internal/middleware/requestid.go31
2 files changed, 0 insertions, 74 deletions
diff --git a/internal/middleware/metrics.go b/internal/middleware/metrics.go
deleted file mode 100644
index f9d7e0f..0000000
--- a/internal/middleware/metrics.go
+++ /dev/null
@@ -1,43 +0,0 @@
-package middleware
-
-import (
- "net/http"
-
- "github.com/prometheus/client_golang/prometheus"
- "github.com/prometheus/client_golang/prometheus/promhttp"
-)
-
-var (
- requestCounter = prometheus.NewCounterVec(
- prometheus.CounterOpts{
- Name: "handler_requests_total",
- Help: "Total number of request/responses by HTTP status code.",
- }, []string{"handler", "code"})
-
- requestDuration = prometheus.NewHistogramVec(prometheus.HistogramOpts{
- Name: "handler_request_duration",
- Help: "Handler request duration.",
- }, []string{"handler", "method"})
-
- requestInFlight = prometheus.NewGaugeVec(prometheus.GaugeOpts{
- Name: "handler_requests_in_flight",
- Help: "Current number of requests being served.",
- }, []string{"handler"})
-)
-
-func init() {
- _ = prometheus.Register(requestCounter)
- _ = prometheus.Register(requestDuration)
- _ = prometheus.Register(requestInFlight)
-}
-
-// Metrics captures request duration, request count and in-flight request count
-// metrics for HTTP handlers. The family field is used to discriminate handlers.
-func Metrics(family string, next http.Handler) http.Handler {
- return promhttp.InstrumentHandlerDuration(
- requestDuration.MustCurryWith(prometheus.Labels{"handler": family}),
- promhttp.InstrumentHandlerCounter(requestCounter.MustCurryWith(prometheus.Labels{"handler": family}),
- promhttp.InstrumentHandlerInFlight(requestInFlight.With(prometheus.Labels{"handler": family}), next),
- ),
- )
-}
diff --git a/internal/middleware/requestid.go b/internal/middleware/requestid.go
deleted file mode 100644
index 6914137..0000000
--- a/internal/middleware/requestid.go
+++ /dev/null
@@ -1,31 +0,0 @@
-package middleware
-
-import (
- "net/http"
-
- "github.com/celrenheit/sandflake"
- "within.website/ln"
-)
-
-// RequestID appends a unique (sandflake) request ID to each request's
-// X-Request-Id header field, much like Heroku's router does.
-func RequestID(next http.Handler) http.Handler {
- var g sandflake.Generator
- return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
- id := g.Next().String()
-
- if rid := r.Header.Get("X-Request-Id"); rid != "" {
- id = rid + "," + id
- }
-
- ctx := ln.WithF(r.Context(), ln.F{
- "request_id": id,
- })
- r = r.WithContext(ctx)
-
- w.Header().Set("X-Request-Id", id)
- r.Header.Set("X-Request-Id", id)
-
- next.ServeHTTP(w, r)
- })
-}