diff --git a/pkg/resolvespec/interfaces.go b/pkg/resolvespec/interfaces.go
index 0fd2329..7641911 100644
--- a/pkg/resolvespec/interfaces.go
+++ b/pkg/resolvespec/interfaces.go
@@ -7,3 +7,15 @@ type GormTableNameInterface interface {
 type GormTableSchemaInterface interface {
 	TableSchema() string
 }
+
+type GormTableCRUDRequest struct {
+	CRUDRequest *string `json:"crud_request"`
+}
+
+func (r *GormTableCRUDRequest) SetRequest(request string) {
+	r.CRUDRequest = &request
+}
+
+func (r GormTableCRUDRequest) GetRequest() string {
+	return *r.CRUDRequest
+}
diff --git a/pkg/resolvespec/types.go b/pkg/resolvespec/types.go
index d17083d..50c4a79 100644
--- a/pkg/resolvespec/types.go
+++ b/pkg/resolvespec/types.go
@@ -33,6 +33,7 @@ type PreloadOption struct {
 	Filters     []FilterOption `json:"filters"`
 	Limit       *int           `json:"limit"`
 	Offset      *int           `json:"offset"`
+	Updatable   *bool          `json:"updateable"` // if true, the relation can be updated
 }
 
 type FilterOption struct {