Most voted "firebase" questions
Firebase is a platform for real-time storage-based application development and data synchronization using client-side code only.
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answers848
viewsRead data from Firebase Altime databse
I am developing an angular application, and I need to read the recorded data in my firebase database. How would I read all the data that is inside object 9 for example ? I need to read this data and…
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answers40
viewsError trying to run firebase forgot-password
I am making the password forgot screen of firebase and is giving an error when I put the . sendPasswordResetEmail. That’s the version of my firebase : implementation…
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answer211
viewsMove an image of an Activity to the main screen
How can I pass an image of an Activity to another actiivity? I have an image on my settings screen, I want to send it to my main screen. I saved it in my sharedPreferences and would like to use the…
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answer36
viewsRecover snapshot inside a node
I need to retrieve all users within a user node, follow firebase structure: To recover these values I am making an addListenerForSingleValueEvent, follows code: private DatabaseReference…
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answer226
viewsFirebase: signInWithEmailAndPassword failed: Second argument "password" must be a Valid string
I’m getting a re-turn null for my second parameter along with signInWithEmailAndPassword method. This error inhibiting my authentication. public autenticar(email: string, senha: string): void {…
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answer139
viewsNuxt 2 how to serve the Assets correctly in Firebase Host
I’m building a new ssr application using Nuxt 2 and Firebase, I’m trying to deploy my application using Firebase Hosting and Cloud Functions as well as this video however the problem, the video is…
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answer86
viewsHow do I view a Firebase database drive?
I am having trouble recovering the drive content that is stored in Firebase, which has in turn user dHJldml6YW5AZ21haWwuY29t and email, and inside the email is organized by date of movement, for…
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answer577
viewsFirebase does not save data
so I’m having a little problem and I can’t solve it for studies I’m creating an app already famous and my doubt is the following when registering a user your name and email are not recorded in the…
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answer53
viewsHow to show data stored in Firebase on Ionic?
Provider import { AngularFireDatabase } from '@angular/fire/database'; import { Injectable } from '@angular/core'; @Injectable() export class ContatoProvider { private PATH = "contatos/";…
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answer71
viewsError while trying to integrate firebased cloud notification into Dart
Guys, I’m trying to push Notifications to my application users in Flutter, however when I do the method void initState() { \\\\\ } and configure the entire notification system, the compiler returns…
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answers535
viewsHow to access child node in Firebase?
I have the following tree on Firebase: How do I access to list the data within the node "holes"? I am using the following data listing method: public void recuperaFuros(){ DatabaseReference furosRef…
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answer419
viewsDelete a user from firebase Auth when an Activity is destroyed
I have an activity call ValidadorActivity, in this Activity I do a validation by SMS, right after the user registers. The register is made by Firebase Auth however is done before this validation, so…
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answer454
viewsI cannot make Firebase Cloud Messaging notification work in the web browser
I’m really lost on how to make notifications work. I find their documentation very confusing. But following as I understood and some tutorials, I think I managed to solve a good part and should be…
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answer95
viewsAfter the 0.7.0 update of firebase_auth I can no longer log in with Google. How do I proceed to log in with google+firebase?
After the user used the Google login option he used this code, but after updating the firebase_auth for version 0.8.0+1 this code broke: var fUser = await fAuth.linkWithGoogleCredential( idToken:…
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answer43
viewsCloud Firestore can’t get data out of onComplete
So my code is this:: SpinnerDialog spinner; String[] textoSeparado; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);…
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answer88
viewscom.google.firebase.database.Databaseexception: Failed to Convert a value of type java.lang.String to long
Error I’m wanting the Android app to take the data from Firebase and show them in a list and this is the error. com.google.firebase.database.DatabaseException: Failed to convert a value of type…
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answer1836
viewsHow to change the color of an Icon through Boolean Return in Flutter?
I have a method that queries books that are favorite in the Firestore database, the book page has a star icon in black color, use isFavorite method to query whether the open book is preferred by the…
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answer61
viewsHow do I access the iddoFeed and get all data independent of the logged in user
firebase.database().ref('feeds').once('value').then((snapshot) => { let feeds = [] snapshot.forEach((childItem) => { feeds.push({ key: childItem.key, id: childItem.val().id, id_user:…
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answer275
viewsQuery search android studio, firebase data listing problems
Could someone help me? The app recovers data from child("grupos") in debugging, but when I tie the knot, for example, child("grupos").child("nome"), the application of crash nor in debugging to see…
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answer156
viewsFirebase object always returning Undefined out of subscribe
I’m trying to do something simple. It happens that I need to obtain the quantity of stock of that item, at that given moment to then make the return and the feed of the stock correctly. I’ve built…
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answer511
viewsHow popular a Database Data Picker (Firebase) - React Native
I’m trying to popular this Picker with BD data (for when the person wants to delete, she choose by title), but it n fills in, and I don’t know if I’m doing it right. thanks for the help! :) export…
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answer439
viewsHow to Fill In My Fields with Data Selected by Picker and Update Data - React Native
How can I make so that when the "title" of the task is selected through the Picker it fills my other fields belonging to this task and can update my data? thanks for your help ;) export default…
firebase react react-native firebase-database reactive-programmingasked 5 years, 11 months ago Nuck 35 -
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answer900
viewsHow to Fill in My Fields through My React-Native and (Firebase) Database
How to Fill my Textinputs through my database so that the User can edit them and insert them again (replacing the old ones) for example:(take my email and password I have in BD and put in these…
firebase react react-native reactive-programmingasked 5 years, 11 months ago Edu_gamer _programer 1 -
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answers15
viewsCreate a user without current Logout - Firebase
When I am logged in to the App and create a new user automatically the active user becomes the newly created one. Some solution with Angularfire to get around this? collaborator.ts colaborador:…
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answer64
viewsHow to pull a specific firebase document using Swift?
I’m trying to get a document inside a collection, but I can only get it all at once. The way in the firebase looks like this: Collection: digital-liquors. Documents: adult(That’s what I’m trying to…
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answers14
viewsI’m not getting through Firebase
var inputEmail = Document.getElementById('inputEmail'); var inputName = Document.getElementById('inputName'); var addBtn = Document.getElementById('addBtn'); //By clicking the button…
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answer63
viewsRecord data in different child classes Android Firebase
I’m trying to record some data in another child class in the firebase, but without success, follows code. However unsuccessfully, when I run the application first the client data is recorded, and…
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answer129
viewsHow to add Child node in Child firebase android
I would like to know how I can add a new node inside my Child 88d4c350-d2db-4765-b7da-0652b1278bd7 that is inside Child ETE, without overwriting the two tests? public void salvar(){ try { if…
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answers86
viewsHow do I access the url that returns me in the.log console?
I am doing a photo upload to firebase Storage, everything goes well, the file is transferred and recorded inside. But when I sign up within the task I can’t get the image download url to record to a…
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answer33
viewsMy app is picking up the same settings even after using Finish
I’m a beginner on android and I’m developing a chat app in which I connect two people based on their preferences. When one of the two people ends the conversation and decides to go back to the queue…
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answer286
viewsHow to Iterate on Datasnapshot correctly in Firebase?
I am 8 days trying to get from firebase the records I put there. However, I can never bring them properly. --- Android for Firebase private void initPreencheLista() { listCelula.clear(); novaRef =…
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answer553
viewsReading of Firebase data
Whoa, that’s all right? I’m doing a college project using the Firebase and the React Native. I developed a screen where I want to publish texts and show everyone who is using the application. I was…
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answer153
viewsGet data from each firebase key with javascript
I have the following registration at firebase: And I’m trying to get the values "Female", "Male" and "Mixed" of each record and in case it is "true" I mark a checkbox, but apparently my code is not…
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answer187
viewsProblems with the method . getDownloadUrl( );
I’m having trouble updating the method. getDownloadUrl( ); from firebase, I’m trying to save an image in Storege and lego after taking the url and saving it as a path in Database. private void…
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answers58
viewsHow do I make a data typed in an input go to a java script function?
How do I make the data typed in a form input go to a variable or that is viewed by that variable, the variable in question is: var emailAddress = "[email protected]"; The form in question is:…
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answer82
viewsProblem in Firebase Notification. Does not display when going through notification
I’m having a problem with the notification. I tried both Notification and Notificationcompat simply does not display it. Receives the firebase response well, but when showing the notification does…
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answer233
viewsConnection app with firebase
Good afternoon, I have the following error in my logcat, when trying to register an email and password in firebase Authentication, where it jumps to my "Else" of "Alert" and soon after the error in…
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answer69
viewsIs it possible for me to record information using one user.uid in firebase?
I have no knowledge about the area, so at the moment I have many doubts and one of them is this: I have a script that the proposal is to get the user.uid when it is logged in via email and password…
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answer175
viewsUri in image is not appearing
Ola, So I’m doing a project, and I need the user image to appear right away when it’s loaded. For this I’m using firebase Storage, and I can get the URL of the image I need, which in this case is :…
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answer737
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answer185
viewsSum fields of a Firebase Bank
I need to add the fields of my bank Firebase, that is the field Receita that is inside the collection Dados follows the picture below: I am using the following code to make a simple read, sets to…
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answers434
viewsHow to recover documents from a Firestore(Firebase) collection in the right way?
I want to recover all documents from an internal collection of a document in the Firestore for an array, in case this collection has 2 documents, however after running the code below the…
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answers1959
viewshow to wait for a finished method to execute the next in angular?
Well, I’m doing an Angular course, I’m trying to understand the concept of Observables and Promisses, but I’m a little confused, I’m using Firebase to create a simple application, where I use email…
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answer29
viewsProblem trying to recycle multiple fragments ( Youtubeplayerfragment )
I am trying to view youtube videos using Youtubeplayerfragment through Recyclerview, the links are saved in Firebase but if there is more than one link when it will inflate a new layout I get the…
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answers66
viewsHow to await the return of information using Firebase Realtime Database
I’m having trouble working with asynchronous Firebase Database data I need to identify the type of logged-in user: public Static String getTipoUsuario(){ User = query User(); Return…
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answer81
viewsFirebase IOS token does not work... returns null value
I’m having a problem in an application made in Xamarin, I use Firebase Cloud Messaging to receive Push, but when the code generates the Token it returns null value, someone could help me? THAT IS…
c# ios firebase xamarin firebase-cloud-messagingasked 5 years, 7 months ago Oscar Augusto da Silva 1 -
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answers52
viewsHow to use reduce() on a map() with data coming from the Firestore
I have an array of data coming from the firestore. With the data received by the firestore I make a map to make the display available as a table. When I try to make a table reduce to compute the sum…
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answer101
viewsSave data to Firebase
My code is like this: import React from 'react'; import './addAssalariado.css' import * as firebase from "firebase/app"; export default function addAssalariado(){ function add(){ var name =…
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answer548
viewsDart/Flutter verification/validation in the Firebase Firestore database
I’m trying to do a Dart/Flutter check/validation in the Firebase Firestore database to not save the same serial number string twice in the database, but I’m doing something wrong because it keeps…
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answer241
viewsHow to make only the user who saved the String can see Flutter/Firebase?
This is a code that saves a String qr code that does not repeat in the database, but this way everyone can access this data. I already got the user ID but I still can’t filter to just see the list.…