From 678fb9938c3358934e2511e83dd1650e2cd86be1 Mon Sep 17 00:00:00 2001
From: Thomas Miceli <27960254+thomiceli@users.noreply.github.com>
Date: Thu, 12 Sep 2024 01:45:30 +0200
Subject: [PATCH] Add dummy /metrics endpoint (#327)

---
 internal/utils/validator.go | 2 +-
 internal/web/healthcheck.go | 6 ++++++
 internal/web/server.go      | 1 +
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/internal/utils/validator.go b/internal/utils/validator.go
index 04cbbc3..af78da4 100644
--- a/internal/utils/validator.go
+++ b/internal/utils/validator.go
@@ -57,7 +57,7 @@ func validateReservedKeywords(fl validator.FieldLevel) bool {
 	name := fl.Field().String()
 
 	restrictedNames := map[string]struct{}{}
-	for _, restrictedName := range []string{"assets", "register", "login", "logout", "settings", "admin-panel", "all", "search", "init", "healthcheck", "preview"} {
+	for _, restrictedName := range []string{"assets", "register", "login", "logout", "settings", "admin-panel", "all", "search", "init", "healthcheck", "preview", "metrics"} {
 		restrictedNames[restrictedName] = struct{}{}
 	}
 
diff --git a/internal/web/healthcheck.go b/internal/web/healthcheck.go
index c814361..6927d28 100644
--- a/internal/web/healthcheck.go
+++ b/internal/web/healthcheck.go
@@ -23,3 +23,9 @@ func healthcheck(ctx echo.Context) error {
 		"time":     time.Now().Format(time.RFC3339),
 	})
 }
+
+// metrics is a dummy handler to satisfy the /metrics endpoint (for Prometheus, Openmetrics, etc.)
+// until we have a proper metrics endpoint
+func metrics(ctx echo.Context) error {
+	return ctx.String(200, "")
+}
diff --git a/internal/web/server.go b/internal/web/server.go
index a41f075..91488bc 100644
--- a/internal/web/server.go
+++ b/internal/web/server.go
@@ -251,6 +251,7 @@ func NewServer(isDev bool, sessionsPath string) *Server {
 		g1.GET("/preview", preview, logged)
 
 		g1.GET("/healthcheck", healthcheck)
+		g1.GET("/metrics", metrics)
 
 		g1.GET("/register", register)
 		g1.POST("/register", processRegister)