how to sync permission when have multiple database in laravel

[yagnikpatel007]

public function createUpdateRole(Request $request)
    {
        DB::beginTransaction();
        try {

            if ($request->role_id == 0) {
                $validator = Validator::make($request->all(), [
                    'role' => 'required|string|max:64|unique:roles,name',
                    'permissions' => 'required',
                    'project' => 'required',
                ], [
                    'role.required' => 'The role field is required',
                    'permissions.required' => 'The permisssion field is required',
                    'project.required' => 'The project field is required',
                ]);
            } else {
                $validator = Validator::make($request->all(), [
                    'role' => 'required|string|max:64',
                    'permissions' => 'required',
                    'project' => 'required',
                ], [
                    'role.required' => 'The role field is required',
                    'permissions.required' => 'The permisssion field is required',
                    'project.required' => 'The project field is required',
                ]);
            }
            if ($validator->fails()) {
                $error = json_decode($validator->errors());
                return response()->json(['status' => 401, 'error' => $error]);
            }

            $roles_data = array('name' => $request->role);

            $role = "";
            if ($request->role_id == 0) {
                $role = Role::on($request->project)->create($roles_data);
            } else {
                Role::on($request->project)->where('id', $request->role_id)->update($roles_data);
                $role = Role::on($request->project)->find($request->role_id);
            }
            $role->syncPermissions($request->permissions);



            DB::commit();
            return response()->json(['status' => 200, 'data' => ""]);
        } catch (Exception $error) {
            DB::rollback();
            return response()->json(['status' => 401, 'error' => $error->getMessage()]);
        }
    }