Recent questions tagged FireBase

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I can't setup the updated version of firebase on android studio. I've created json file of the project on the site ... .0' How can I fix it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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firebase - Using Stream Building with a specific Firestore document

I am building a Flutter application and I am having trouble understanding how to implement Firestore. Out of the tutorials I ... ), ); } ); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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826 views

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firebase - NSError * domain: @"com.google.HTTPStatus" - code: 404

I am trying to read images from Firebase storage, and I am getting this error: NSError * domain: @"com. ... of my products' images stored: See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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firebase - Push notifications using FCM not received when app is killed android

public class Notification extends FirebaseMessagingService { private static final String TAG = "MyFirebaseNotification"; ... or background. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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912 views

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firebase rules not working

I'm following the Firebase security tutorial. I have this simple structure: - requests - request_id: {...} - ... ago. Can someone explain why? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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926 views

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firebase - When are writeFields specified in Firestore requests and what replaces them?

The simulator now displays an error message trying to access request.writeFields. Before that writeFields in Firestore ... I only want age. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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firebase - Cloud Firestore security rules: how to check is property exists?

I need to check is property exists in document in store. allow update, delete: if resource.data.uid; in code above ... can check is uid in data? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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firebase - FCM for android: popup system notification when app is in background

Is it possible to show popup for firebase system notification (when app is in background) on the top of screen ... -only pushes - nothing helps. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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879 views

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firebase - Retrieve only specific keys from collection

I would like to store an array of notes, where each note contains a title and a body. Is it possible to ... just retrieve the list of titles? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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firebase - MissingPluginException(No implementation found for method show on channel dexterous.com/flutter/local_notifications)

I've try implement Firebase Cloud Messaging with Flutter, and i was success until i use 'Local Notification' plugin ... : 'Custom_Sound', ); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.8k views

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firebase - ImportError: Failed to import the Cloud Firestore library for Python

Trying to integrate Google firestore API at python server ... File "/home/daffolap-355/repos/subscriptions/ ... app dev_appserver app.yaml See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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firebase - Flutter - Fetch Data from firestore and display it in a dropdown list

I'm trying to fetch data from firestore and display it in a dropdown menu. I tried declaring the list like the ... Colors.black), ); }), See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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866 views

1 answer

firebase - Firestore security rule: How to ensure uniqueness of values in document?

Can the below security rule ensure uniqueness of firstName, lastName, username, and email before creating a document ... allowed to be created? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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944 views

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firebase - What are the benefits of using a root collection in Firestore vs. a subcollection?

With the advent of collection group queries, it isn't clear to me what benefit there is in using ... subcollections / collection group queries? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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732 views

1 answer

firebase - Android - Client-side sorting with FirebaseRecyclerAdapter

I'm building an application with Firebase on Android. The scenario for my application is as follows. Look ... achieve this scenario gracefully. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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753 views

1 answer

firebase - AngularJS “Wire up a Backend” example not loading data on edit dialog

I'm new to Firebase... I'm trying to get the "Wire up a Backend" example at Angularjs' home page to run ... .$remove">Delete</button> </form> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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firebase - How to recursively delete collection in firestore?

I needed a way to quickly clear an entire firestore DB but couldn't find great documentation for how to do it ... use this on production data! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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823 views

1 answer

firebase - Is it possible to run aggregation queries in Firestore?

Stack: Ionic Nodejs/Express Cloud Firestore I am tasked with writing an app that takes dates in "day" ... and polling the desired collection? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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890 views

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firebase - Firestore security rules in to prevent sensitive field

I am modeling a database with Firestore, for a small company. I have a collection of departments. Each ... have a collection of employees. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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firebase - Flutter - Unhandled Exception: [core/duplicate-app]

I am building a flutter app with firebase. The firebase services I am using are Realtime database and Authentication. ... this issue? Thank you! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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984 views

1 answer

firebase - Cloud Firestore: How to set a field in document to null

I use a collection of documents that I use to identify user groups. My intention is to only fill in the ... there something else I should do? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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778 views

1 answer

firebase - GeoFire: How to add extra conditions within the query?

I am wondering if it is possible to add extra conditions to the query? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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firebase - Get parents from Firestore Collection Group Query, WITHOUT RETRIEVING SONS

I am designing a Firestore Database and am wondering about the cost implications of the following architecture... ... parent documents? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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822 views

1 answer

firebase - Is it possible to use any kind of database in Flutter Desktop

After 2 weeks of UI code for my desktop app I just found out that firebase doesn't support flutter desktop, ... and Rest API isn't enough. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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firebase - Cloud Firestore ReactJS Error: Missing or insufficient permissions

I'm fairly new to Cloud Firestore particularly security roles, but being that they're significantly important I'd ... check of roles does not. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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964 views

1 answer

firebase - Firestore: request for a list of collection IDs

Firestore documentation says: Queries other than document reads For queries other than document reads, such as a request ... . Anyone knows how? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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946 views

1 answer

firebase - Firestore security rules based on request query value

I'm trying to secure requests to a collection to allow any single get, but only to allow list if a ... collection and secure it that way? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

1 answer

firebase - How to access Cloud Firestore from Google Sheets?

I am trying to access Cloud Firestore database from Google sheet with the help of FirestoreGoogleAppsScript example, but as ... 7, file "Code") See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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