try typed c.Render

prototype is a success!

main.go

@@ -15,11 +15,11 @@ import (
 
 	"codeberg.org/vnpower/pixivfe/v2/config"
 	"codeberg.org/vnpower/pixivfe/v2/pixiv_api"
-	"codeberg.org/vnpower/pixivfe/v2/session"
-
 	"codeberg.org/vnpower/pixivfe/v2/routes"
+	"codeberg.org/vnpower/pixivfe/v2/session"
 	"codeberg.org/vnpower/pixivfe/v2/utils"
 	"codeberg.org/vnpower/pixivfe/v2/utils/kmutex"
+
 	"github.com/goccy/go-json"
 	"github.com/gofiber/fiber/v2"
 	"github.com/gofiber/fiber/v2/middleware/cache"
@@ -86,7 +86,7 @@ func main() {
 
 			// Send custom error page
 			c.Status(code)
-			err = c.Render("error", fiber.Map{"Title": "Error", "Error": err})
+			err = routes.Render(c, routes.Data_error{Title: "Error", Error: err})
 			if err != nil {
 				return c.Status(fiber.StatusInternalServerError).SendString(fmt.Sprintf("Internal Server Error: %s", err))
 			}

routes/render_types.go

@@ -0,0 +1,30 @@
+package routes
+
+import (
+	"log"
+	"reflect"
+	"strings"
+
+	"github.com/gofiber/fiber/v2"
+)
+
+type Data_error struct {
+	Title string
+	Error error
+}
+
+func Render[T interface{}](c *fiber.Ctx, data T) error {
+	route_name, found := strings.CutPrefix(reflect.TypeFor[T]().Name(), "Data_")
+	if !found { log.Panicf("struct name does not start with 'Data_': %s", route_name) }
+	return c.Render(route_name, structToMap(data))
+}
+
+func structToMap[T interface{}](data T) map[string]interface{} {
+	result := map[string]interface{}{}
+	Type := reflect.TypeFor[T]()
+	for i := 0; i < Type.NumField(); i += 1 {
+		field := Type.Field(i)
+		result[field.Name] = reflect.ValueOf(data).FieldByName(field.Name).Interface()
+	}
+	return result
+}

routes/templateTypes.go

@@ -1,2 +0,0 @@
-package routes
-

semgrep.yml

@@ -98,3 +98,6 @@ rules:
   severity: INFO
   pattern: |
     c.Render(...)
+  paths:
+    exclude:
+      - "render_types.go"