google-cloud-firestore

问题 In my collection's SnapshotListener, I have am looping through the documents with: for (DocumentChange doc : queryDocumentSnapshots.getDocumentChanges()) { if (doc.getType() == DocumentChange.Type.ADDED) { String somestr = doc.getDocument.getString("someField"); // retrieve collection here } } And within each document in the for loop, let's call it doc , I have another collection of documents on Cloud Firestore. I would like to retrieve all documents (each of which just has a single String

问题 I'm currently trying to integrate Stripe with my Firebase's Cloud Firestore db through using Cloud Functions for Firebase. The onCreate trigger is happening correctly but I also want it to update or set a specific field called "customer_id" into the right document in my Users collection. I think something is a little off about how I write my function since I'm not the most experienced with javascript. I've also tried return admin.firestore().ref(`Users/${user.uid}/customer_id`).set(customer

问题 I am wondering if the realtime listener for Firestore supports async await instead of promise? The documentation suggests: var unsubscribe = db.collection("cities").where("state", "==", "CA").onSnapshot(function(querySnapshot) { var cities = []; querySnapshot.forEach(function(doc) { cities.push(doc.data().name); }); console.log("Current cities in CA: ", cities.join(", ")); }); unsubscribe(); Could I write the above realtime listener using async await ? I tried the following and the listener

问题 I have a data structure that looks as follows: This is the top level of the collection: I want to write to increment the field count but I can't do it. I've tried so many different methods that I'd rather not go through all of them. The closest I've gotten was through: const pageRef = admin.firestore().collection("pages").doc(image.page); pageRef.set( { [`images.${image.position}.count`]: admin.firestore.FieldValue.increment( 1 ), }, { merge: true } ); But that leaves me with: Please help.

问题 Reading the documentation I can't see a way if this is possible in a sensible way. I'm trying to create a document team with a sub document of member . And what I'm really trying to achieve is an in-complex way of structuring read/writes/updates on collections and sub collections. async createTeam(newTeam, foundingTeamMember) { const teams = db.collection('teams'); const teamRef = await db.collection('teams').add(newTeam); const memberRef = await teams.doc(companyRef.id) .collection('members'

问题 I was wondering if there was a way to increment a value in Firestore with Ionic. For example, a like button and when clicked a field value 'likes' adds +1 onto the existing value. I saw examples with 'transactions' where this is done but it was with the Realtime Database rather than the Cloud Firestore. I looked further and could not find any documentation regarding Firestore. Is there anyway to pull this off without pulling the existing value from the snapshot first? Thanks, Troy 回答1: There

问题 I have an issue with synchronizing two Firebase cloud functions, the first one performing a batch update on multiple documents and the second one triggered by an onWrite trigger on one of those documents. For illustration, let us say I have two documents A and B (in two separate collections). A first cloud function updates both documents A and B with a firestore WriteBatch (both documents are successfully updated); The write in document B triggers another cloud function (with an onWrite

问题 I'm facing an issus with the Firebase Snapshot. I conntected my Fierbase account succesfully with my Xcode project. I am capable to change data in my Firestore cloud. But I can't read it. Here is my function: class UserService{ static func CheckIfMoreThanOneUserIsLoggedIn() -> Bool{ var BoolenToReturn:Bool? let AuthUser = Auth.auth().currentUser let userId = AuthUser!.uid let localDeviceString = Constants.UserDefaultsStorage.string(forKey: userId) // LocalDeviceString is generated (20 random

问题 I am using cloud firestore with flutter to store the chat and using where condition to get the chats. the documents returns correctly but when the new data is added the chat list will not update in realtime. How the chat is stored:- collection -> message {message, timestamp, sentBy,sentTo} are the message fields the query is firestore .collection('chats_v2') .where('sentBy', isEqualTo: 'abc') .where('sentTo', isEqualTo: 'xyz') .orderBy('timestamp') .snapshots(); The Chat loads perfectly for

问题 I am trying to convert a firestore timestamp into milliseconds or a date format using python to perform a calculation using this date. Trying to parse it to date returns. TypeError: strptime() argument 1 must be str, not DatetimeWithNanoseconds. How can I convert a Firestore timestamp into milliseconds/date format in python? I need this to perform a calculation. docs = db.collection(u'status').stream() for doc in docs: doc_data = doc.to_dict() # TypeError: strptime() argument 1 must be str,