FirebaseDatabase Snapshot to custom object

[CureleaAndrei]

Hi, awesome job on this library, I will use it in my projects. It will be awesome to have the mapper functionality for firebase database snapshot, also build in.

[kshivang]

Actually that is already build in, you have to dig little more in docs.

Few bits:

var cityDocumentSnapshotMapper: (DocumentSnapshot) throws -> City? {
    {
        var city =  try $0.data(as: City.self)
        city.id = $0.documentID
        return city
    }
}

func listenDocumentAsObject() {
    db.collection("cities")
        .document("SF")
        .publisher(as: City.self, documentSnapshotMapper: cityDocumentSnapshotMapper)
        .sink(receiveCompletion: { completion in
            switch completion {
            case .finished: print("🏁 finished")
            case .failure(let error): print("❗️ failure: \(error)")
            }
        }) { city in
            print("City: \(city)")
        }
        .store(in: &cancelBag)
}

[CureleaAndrei]

Hi, thanks for the quick reply. I've found this, but this is for firestore database, i meant that would be nice to have this also for the firebase realtime database. If there is also for real time database, my bad. I will look again into docs.

[kshivang]

Thank you for pointing out, that functionality is missing. For now you can simply use combine .map, will surely add that feature in the future. PR is also welcome.

[ericlewis]

@CureleaAndrei you could do this with https://github.com/alickbass/CodableFirebase