Hi there.!!!
I have gone through your requirement of food delivery app, our team will provide complete solutions including apps, api and admin panel where you can manage everything regarding to app.
We are currently working on same type of app, before starting the project I will share the complete execution plan, flow and requirement understanding document.
As we are expert we can suggest you some additional things like refer code, offers etc.
Please revert me back to discuss in details.
Thanks