From e7a1590845f84db03483c79d084a9c29f483af6b Mon Sep 17 00:00:00 2001
From: Samuel Berthe <dev@samuel-berthe.fr>
Date: Sun, 12 May 2024 00:38:43 +0200
Subject: [PATCH] feat: add internal error

---
 example/example.go |  5 ++++-
 middleware.go      | 13 +++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/example/example.go b/example/example.go
index 5bb2f96..90b63cd 100644
--- a/example/example.go
+++ b/example/example.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"errors"
 	"net/http"
 	"os"
 	"time"
@@ -47,7 +48,9 @@ func main() {
 		return c.String(http.StatusOK, "Hello, World!")
 	})
 	e.GET("/error", func(c echo.Context) error {
-		return echo.NewHTTPError(http.StatusInternalServerError, "A simulated error")
+		return echo.
+			NewHTTPError(http.StatusInternalServerError, "A simulated error").
+			WithInternal(errors.New("A simulated internal error"))
 	})
 
 	// Start server
diff --git a/middleware.go b/middleware.go
index b2eb9da..f81c54f 100644
--- a/middleware.go
+++ b/middleware.go
@@ -264,6 +264,7 @@ func NewWithConfig(logger *slog.Logger, config Config) echo.MiddlewareFunc {
 
 			level := config.DefaultLevel
 			msg := "Incoming request"
+
 			if status >= http.StatusInternalServerError {
 				level = config.ServerErrorLevel
 				if err != nil {
@@ -280,6 +281,18 @@ func NewWithConfig(logger *slog.Logger, config Config) echo.MiddlewareFunc {
 				}
 			}
 
+			if httpErr != nil {
+				attributes = append(
+					attributes,
+					slog.Any("error", map[string]any{
+						"code":     httpErr.Code,
+						"message":  httpErr.Message,
+						"internal": httpErr.Internal,
+					}),
+					slog.String("internal", httpErr.Internal.Error()),
+				)
+			}
+
 			logger.LogAttrs(c.Request().Context(), level, msg, attributes...)
 
 			return