json file will be like this
{
"mysqlx": {
"host": "tcp://127.0.0.1:3306",
"password": "yourpassword",
"schema": "RestaurantOrderManagement",
"username": "root"
}
}
you will put json file with name db_config in a folder name config and you will put that folder inside RestaurantOrderManagement/RestaurantOrderManagement