feat(middlewares): Add stacktrace in recovery log

log/hooks/gelf/config.go

@@ -9,9 +9,8 @@ import (
 
 // ConfigStruct is the configuration for GELF Provider.
 type ConfigStruct struct {
-	Host         string                 `yaml:"host"`
-	Port         int                    `yaml:"port"`
-	ExtrasFields map[string]interface{} `yaml:"extra_fields"`
+	Host string `yaml:"host"`
+	Port int    `yaml:"port"`
 }
 
 // IsValid will check that the Gelf configuration is valid.

log/hooks/gelf/hook.go

@@ -19,7 +19,7 @@ func NewHook(c *ConfigStruct) (logrus.Hook, error) {
 
 	hook := graylog.NewAsyncGraylogHook(
 		fmt.Sprintf("%s:%d", c.Host, c.Port),
-		c.ExtrasFields,
+		nil,
 	)
 
 	defer hook.Flush()