Zomato, Swiggy, FoodPanda, Uber Eats - etc Integration code Working Sample code needed

This project only applies to developers who have previously developed and integrated the Food apps and Restaurant billings systems with any of the below food ordering apps. Zomato Swiggy FoodPanda Uber Eats etc etc Require full and working Integration code , examples, samples and documentation. We are looking into integrating our own software with all of the major food ordering service apps, So that our Restaurant / hotel users will automatically receive the orders placed by the customer into our own billing system. Dont bid if you do not have any integration code or associated information.