GeoFirestore is set of open-source libraries for iOS and Android applications which allow you to store and query a set of documents based on their geographic location. At its heart, GeoFirestore simply stores locations with string keys. Its main benefit, however, is the possibility of querying documents within a given geographic area - all in realtime.
GeoFirestore uses the Firestore database for data storage, allowing query results to be updated in realtime as they change. GeoFirestore selectively loads only the data near certain locations, keeping your applications light and responsive, even with extremely large datasets.
The GeoFirestore library is available in two different languages:
All of the clients work on the same underlying data structure and have similar APIs, making it easy to create a cross-platform app on top of GeoFirestore.
GeoFirestore is designed as a lightweight add-on to Firestore. However, to keep things simple, GeoFirestore stores data in its own format and its own location within your Firestore database. This allows your existing data format and security rules to remain unchanged and for you to add GeoFirestore as an easy solution for geo queries without modifying your existing data.
Assume you are building an app to rate bars, and you store all information for a bar (e.g. name, business hours and price range) at collection(bars).document(bar-id). Later, you want to add the possibility for users to search for bars in their vicinity. This is where GeoFirestore comes in. You can store the location for each bar document using GeoFirestore. GeoFirestore then allows you to easily query which bar are nearby.
GeoFirestore requires the Firestore database in order to store location data. You can learn more about Firestore here.