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SwiftでFirebaseのデータを上書きする方法

Swift
Firebase
Swift4

Last updated at 2023-09-18Posted at 2020-10-18

import Firebase


Firestore.firestore()
                .collection("コレクション名")
                .document(ドキュメントID)
                .setData([
                    "Value": 1,
                    "UserId" : Auth.auth().currentUser!.uid
                ], merge: true)

ポイントはmerge: trueです。
import Firebaseも忘れずに

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