google-cloud-firestore

问题 I'm working on a REST API with firebase and I'm querying some data by date. It works fine on the localhost but after deploy, it does not! I'm also using momentjs to help to deal with dates. The date field of my document is a timestamp. Here is how I'm doing my query: const documents = await admin.firestore() .collection('orders') .where('date', '>', moment('2020-06-23')) .where('date', '<', moment('2020-06-24')) .get() I have also done the same thing with Date() instead of momentjs const

问题 How can one update fields in a document's nested object? The documentation indicated dot notation but how do you achieve the update with a variable as the object name? Structure is like: collection("fruits").doc("as867f56asd") name: "banana" abc-variable: description:"blah" qty: 1 I want to update document as867f56asd 's abc-variable.qty = 2 My JavaScript requires the use of a variable for the object name. I can't figure out bracket notation for the update. Is .set{merge:true} req'd? Here is

问题 So I am trying to fetch data from Firestore, when I console log it I got the content of my collection back, but when I move the code to a function I am not able to return it back. This code works: const db = firebase.firestore(); db.settings({ timestampsInSnapshots: true}); db.collection('story').get().then((snapshot) => { snapshot.docs.forEach(doc => {console.log(doc.data()) ;}) }) This doesnt work. (it compiles, but doesn`t return anything): ... getMyStory = () => { const db = firebase

问题 When a new activity is posted i add a new post document into the collection. Inside this document i have a map where users add confirmation to the event marking it as true and adding his own id. var snap = await Firestore.instance .collection('user_posts') .where("confirmations.${user.id}",isEqualTo: true) .getDocuments(); With this snippet i'm able to get all the posts confirmed by the user. The issue here is to get this a index is required to perform this query. And this index can't be

问题 Say I have a collection of 'Users', and am happy for their ID to be the generated Firestore documentId, something like: Users Collection GENERATED_FIRESTORE_ID1: name: "User 1 name" ...: etc. GENERATED_FIRESTORE_ID2: name: "User 2 name" ...: etc." and I am adding them, and retrieving them with a custom object (I'm using Android at the moment but the question I guess is more generalistic). I don't want to have an extra "id" field in the document, just use the document.getId() method to get the

问题 I'm trying to access chatting room Using firestore and coroutines. fun getOwner() { runBlocking { var de = async(Dispatchers.IO) { firestore.collection("Chat").document("cF7DrENgQ4noWjr3SxKX").get() } var result = de.await().result } But i get error like this : E/AndroidRuntime: FATAL EXCEPTION: Timer-0 Process: com.example.map_fetchuser_trest, PID: 19329 java.lang.IllegalStateException: Task is not yet complete at com.google.android.gms.common.internal.Preconditions.checkState(Unknown Source

问题 This is the example provided in the documentation to update a field within a nested object in firebase. var frankDocRef = db.collection("users").doc("frank"); frankDocRef.set({ name: "Frank", favorites: { food: "Pizza", color: "Blue", subject: "recess" }, age: 12 }); // To update age and favorite color: db.collection("users").doc("frank").update({ "age": 13, "favorites.color": "Red" }) .then(function() { console.log("Document successfully updated!"); }); Instead of updating the favourites, I

问题 I'm new to Firebase and trying to understand database rules. I'm using Firestore. I have a database that basically needs to be read by all users, and also write. All users can see the documents in the database, and with certain actions they change certain fields. In certain cases they will detele certain old expired documents. Now, I understand that I cannot leave read and write open to all, since this is not secure. So I am using authentication, I will anonymously authenticate the users, so

问题 Sorry I have seen this question has been asked many times in different ways here such as: Howto paginate back to previous pages in a Angular(6) and firebase Firestore setup How to paginate Firestore dataset by individual page? But NONE of the answers really explain the solution or are understandable. Also I went though many tutorials such as: https://howtofirebase.com/firebase-data-structures-pagination-96c16ffdb5ca https://rexrainbow.github.io/phaser3-rex-notes/docs/site/firebase-firestore/

问题 I'm trying to retrieve posts from a Firestore collection called "posts", which contains the post creator's userID and post description and this is possible by using both StreamBuilder and FutureBuilder(Not preferable, because it gets a snapshot only once and doesn't update when a field changes). However, I want to query another collection called "users" with the post creator's userID and retrieve the document that matches the userId. This was my first approach: StreamBuilder<QuerySnapshot>(