I'll explain when you're older!

backend/handlers/uuid.go

@@ -1,6 +1,7 @@
 package handlers
 
 import (
+	"fmt"
 	"github.com/google/uuid"
 	"github.com/jackc/pgx/v5/pgtype"
 	"github.com/labstack/echo/v4"
@@ -23,7 +24,7 @@ func ParseUuidOrEmpty(s string) *pgtype.UUID {
 func ParseUuid(s string) (*pgtype.UUID, error) {
 	uid, err := uuid.Parse(s)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("invalid UUID format: %v", err)
 	}
 
 	return &pgtype.UUID{
@@ -32,13 +33,11 @@ func ParseUuid(s string) (*pgtype.UUID, error) {
 	}, nil
 }
 
-func ParseUuidOrBadRequest(c echo.Context, s string) *pgtype.UUID {
+func ParseUuidOrBadRequest(c echo.Context, s string) (*pgtype.UUID, error) {
 	uid, err := ParseUuid(s)
 	if err != nil {
-		_ = BadRequest(c, "Invalid UUID.")
-
-		return nil
+		return nil, BadRequest(c, fmt.Sprintf("invalid UUID. %v", err))
 	}
 
-	return uid
+	return uid, nil
 }