firebase/firestore
firebase/firestore/lite
lite ver of firebase/firestore for CRUD ops only w/o real-time listeners, offline support, latency compensation
getFirestore()
getter to init Firestore
addDoc()
to create new doc in db with autogen UID
setDoc()
to write to doc (_ref, _data)
doc()
to get document ref
getDoc()
getDocs()
collection()
References
firebase/firestore/lite↔ lite ver offirebase/firestorefor CRUD ops only w/o real-time listeners, offline support, latency compensation