google play service: https://droidmentor.com/get-the-current-location-in-android/

Livedata and mobile GPS/GSM:
https://github.com/shashankkapsime/android-location-services-using-livedata-lifecycle-components/tree/master/app/src/main/java/com/newconcepts

Guardar com room trajectos efectuados e a decorrer neste momento (inacabados)

REF

sir can you provide the server side code also.