React native food mobile app

React-native mobile app required ( front end react native , back end mongo db and nodejs)
restaurant/bakery/grocery owner add the food in the app
customer will buy the food through a payment gateway
mobile app should be operated both in India and Canada
either separate payment gateway for each country or one payment gateway is for both the countries ( India and Canada)
No delivery option, only food pick up
vendor places the food, the customer buys the food online. Customers will pick the food from the restaurant.