Dear experts, I started creating an app that receives the user location and if the location fulfills a few criteria, the app sends a message to the user.
- Frontend: already finished. I just want it to be reviewed by an expert (less < 1000 lines) and to be adapted to iOS.
- Backend: needs to be implemented using cloudy functions from the firebase
After the user clicks a specific button on the app, a query is performed in the location database. The query will return a number of users (say, five) that have crossed paths with the reference user in the last 4 days, and these five users will receive a message on their apps.
- Languages: node.js and java
- Database: Firestore