在 Firestore 中创建 UID 作为字段

Question

I want to be able to create a UID as a field inside my collection in firestore, is that possible?

Ex: The UID would be a generated field that creates a "project" and that project will have it's own UID, so that it stays unique. How can I accomplish this?

Answer 1

Yes, it is very possible

val id uuid = UUID.random()
    val city = hashMapOf(
            "UID" to uuid
            "name" to "Los Angeles",
            "state" to "CA",
            "country" to "USA"
    )
    
    db.collection("cities").document(uuid)
            .set(city)
            .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully written!") }
            .addOnFailureListener { e -> Log.w(TAG, "Error writing document", e) }