> For the complete documentation index, see [llms.txt](https://docs.ionicfirebaseapp.com/flutter-grocery-app-pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ionicfirebaseapp.com/flutter-grocery-app-pro/grocery-app/app-setup.md).

# App Setup

Changing Credentials.\
\
create .env file in the project directory and  set all values of given variables 

```
API_URL=
ONE_SIGNAL_KEY=
STRIPE_KEY=
IMAGE_URL_PATH=
ANDROID_GOOGLE_MAP_API_KEY=
IOS_GOOGLE_MAP_API_KEY=
PREDEFINED=false
```

Place your backend API URL and one signal key. you need to create one signal project to get the key one signal key. You can create one here [onesignal.com](https://dashboard.onesignal.com/)

You also need a Google API key for the map and location-related features. You can follow this guide to create a [google map API key](https://developers.google.com/maps/documentation/ios-sdk/get-api-key).\
\
That's it you are ready to go.

[<br>](https://docs.ionicfirebaseapp.com/flutter-multirestaurant-sass-app/node-js-dashboard/untitled)