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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answers32
viewsImage Google profile in Firebase Firestorage
I’m having trouble with the following code: StorageReference imagemRef = storageReference .child("imagens") .child("perfil") .child(Jogador.uid + ".jpeg"); UploadTask uploadTask =…
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answer518
viewsError running "npm run Prod" command in Git Bash to build an Ionic 2 project
I have a publication ready project, which was created with Ionic 2 using Google’s Firebase API, but when I try to build the project for production, with the following command in Git Bash: "npm run…
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answer411
viewsCatch real-time id Firebase
I’m creating a new document in firebase and likes to take the id I’ll be creating to save in my collection, but how would I get it if I haven’t saved it in the database? Example: the id you will…
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answer297
viewsRecover Firebase Object value
Hello, I’m having trouble recovering the value of an Object in the Firebase Database. I have the following object on the base: I wanted to recover in case the value of lastId(108) for later, when…
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answer21
viewsRealtimedatabase Read data via Java Script
I have the following JSON "colecao" : { "id" : { "subid1" : 2, "subid2" : 1 } } I use the following commands to retrieve data from the Altime var dbrealtime = firebase.database(); var query =…
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answer156
viewsHow do I work with Firebase Storage offline?
I have been studying the functionalities of Storage (storage of media and files) and Firebase’s Realtime Database. In the case of Realtime DB, it is possible to enable data persistence while offline…
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answers144
viewsError accessing Firebase Storage in Android Studio App
I have a problem trying to set an image of Storage on ImageView from Android Studio, this error appears in logcat: User does not have permission to access this Object. Code: -13021 Httpresult: 403 ľ…
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answer31
viewsHow do I download a file that is in Storage by my app (Adnroid Studio)
I took a look at the documentation provided by Firebase and still did not understand how to download a file that is in Storage by my app using Android Studio, someone can help me?
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answer111
viewsSave a function’s results to an Ionic variable 3 + Firestore
How to save the result obtained in r.get('Quant') in a variable and return its value, because the first console.log shows the data I obtained, but the second does not, and the Return Quant always…
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answer62
viewsList returning null values
I am doing an item listing, in this listing I bring the following information id, idPostagem, description, nounUsuario and photoUsuario. Soon after setting the values, I checked them and I am all…
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answer481
viewsHow to keep the App always logged in with Firebase
How to get my App to log in after waxing? Ex: I logged in once and every time I start the application again it already starts logged in.
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answer28
viewsWhat is the error.code of an invalid email in the case of a user registration in Firebase?
I am creating a user registration panel in firebase with email and password through an application in React-Native, so, at the time of registration, I wanted to check if the e-mail entered is valid.…
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answers113
viewsproblems in passing data to new Activity
I’m having difficulty when I pass a dice using the put. Extras. My app is crashing and I can’t identify the reason. He is unable to pass the data from one Activity to another. Activity that sends…
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answer62
views"Table" for queries only - Firebase
I’m developing an app with firebase (Realtime) and ionic3. I don’t know much about this technology, and I couldn’t clear up a question with my research: It is possible to create a table for query…
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answers30
viewsI’m not able to register in APP
I’m trying to register using Firebase. Everything is correct there in Firebase, but when I click on Register in the APP, nothing happens, it seems that the button is without function. Can someone…
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answers541
viewsProblem in recovering data from firebase
I recently started working with Firebase and am still learning what can be done by reading the available documentation. But one problem I’m having is recovering the data within a function. The…
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answer352
viewsFirebase with Javascript - Get the Child title from the database
Good people, I need to capture with javascript the name of Childs 10th of 2017 and 11de2017 from the following image database: Initially I tried as follows: var datasWO =…
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answer171
viewsHow do I call a method within a loop?
I’m trying to perform a function ,which I have a call from another function within a loop, however the return function only loads the first method input. So, how do I call a method within a loop?…
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answer360
viewsHow to show the connected user’s Firebase ID on the screen?
I need to take getUid from the connected user and set the id in an editText. I left it down just to show what I want to do, because that way it doesn’t work. How can I call a getUid connected to any…
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answer97
viewsHow to compare two Child values in Firebase
I have two types of users: Vendedores and Usuarios. Applicants can display their data if the Ids are the same (already functional). Users should see Sellers' values if their child ("City") has the…
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answer816
viewsHow to reference another collection in Firebase’s Cloud Firestore
I’m starting to learn Firebase using Cloud Firestore. And I have a question: How can I relate collections? I see the collections as tables, so I would have a collection of Products, and a Category.…
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answer528
viewsCannot add Extension with name 'googleServices', as there is an Extension already Registered with that name
Please, help me out. Problems to connect firebase with firebase wizard in android studio. I’m trying to connect firebase Analytics with Ionic, and for that I have to connect with firebase. I…
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answer895
viewsFirebase for a List
I need to take all the data from firebase and create a list, to use in a listadaper that I created. This is the structure of the Bank in Firebase: As you can see, I want to get all the child…
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answers47
viewsI want to get the same ID
Good afternoon I wanted to know if it is possible to get the phone ID for the same functions or as in the example below. I want to put the ID that’s marked black under the "SMS". Is it possible to…
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answers49
viewsAndroid - Firestore - Searchview
how can I perform a search with firestore? for example, if you type a city, list the data related to that city. Thanks
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answer239
viewsLike button with jquery
Hello. I am a beginner and please need a help from you. I have the following challenge: Make a Like button with jquery and save it to firebase. I imagine you have to put an icon or button in html…
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answers66
viewsEmail and password in the Android Studio app not registered in Firebase
No type of error appears when I click to register the button, I have put all types of password sizes and even put my own valid email only that does not register in firebase authentication. private…
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answers11
viewsError accessing child node in Firebase
Guys, I’m having problems to access the child node in Firebase, is returning me this error, I wonder what should be modified to run the app normally, above is my code I’ve tried to run. It follows…
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answers252
viewsDelete firebase firestore collections
I have N collections created in my Cloud Firestore, and I would like to delete all of them if possible, as if I were going to reset my database because they were inserted wrong. I wonder if there is…
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answer143
viewsFirebase stopped saving to Realtime-database
From yesterday to today, firebase stopped saving any kind of data in the database and I would like to know why. I just yesterday was testing my Whatsapp app clone naturally, but without changing…
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answers691
viewsHow to change the zoom on a particular location in google maps api v3?
I’m trying to get the map dee zoom into a certain markers location when they are created in Firebase. I’ve already tried to use the setZoom() setCenter() but what happens is this: I’d like him to go…
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answer144
viewsFirebase Authentication with googleAuth
here is the code I am using to log in, the firebase account is configured to receive the login Function signIn() { var Provider = new firebase.auth.Googleauthprovider(); firebase.auth().…
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answer107
viewsSender ID Cordova Plugin Push
I am developing an application that needs to be able to receive notifications via server, and for this, I opted to use a plugin called phonegap-plugin-push var push = PushNotification.init({…
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answer56
viewsError while trying to run the application with Gluon Mobile using Gradle build
Hello, I am trying to run my application however it gives the following error: please apply google-services plugin at the bottom of the build file. :compileJava FAILURE: Build failed with an…
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answer665
viewsHow to browse a list of javascript objects?
Well, I recovered this value from my firebase users node, however I am not able to recover the values, for example: name, cell phone, email. Note: I have tried this.obj[0]. name; and return me…
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answers689
viewsHow do I select this in the Firebase Cloud Firestore database?
how do I do this kind of select in the Firebase Cloud Firestore database ? _results = (await connection.query('select id from produtos where numero_serie = $_numeroSerie')) I need to get the product…
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answer60
viewsPriority in a notification using firebase
I am using Ionic and everything is configured to send the notification... I wanted to increase the importance of it because it does not make noise and does not appear in the upper corner as a…
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answer52
viewsGet back empty nodejs + firebase
Personal I need help with a get return with Node and firebase. receive an empty array. but in the console.log inside the foreach prints correct [ { cnpj: '03052164798-000179', address: 'Av Duque de…
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answers119
viewsHow to insert a Firesotre Cloud list into an Expandablelistview
How can I enter data obtained from the Cloud Firestore into a ExpandableListView? I have a document "Places" in a collection "Categories". The document has a vector, also called "Places", with 5…
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answer309
viewsUse more than one Firebase database in an app created in Flutter
Good evening Guys, I’m designing an app and I’m thinking about using flutter and Firebase. My project consists of a customer register where each company can have its customer portfolio online. Is…
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answer100
viewsReceiving json from a web server
I am working with firebase, and I am searching the server data with Httpwebrequest, I was able to recover this data in the following way; {"-L1od7ljenm8zhsps7ne":{"Age":"18…
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answer275
viewsListview displays only 1 item
I’m trying to bring the list of friends to be displayed, but only the first registered appears. I’m following a tutorial and my code is identical to the one I’m following. public class…
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answer42
viewsParameters Firebase bank
The flutter has to communicate with firebase the file google-services.json, would have some way to send parameters with the key of another firebase database and projectid?
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answer254
viewsHow to save additional data to the Firebase user account with Ionic app?
Hello I am using firebase authentication in my Ionic app, my question is : how can I save more data besides email and password in the user account? I want to save beyond the high email like: First…
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answer189
viewsHow to show in gridview the data from firebase Storage using Picasso?
Good morning to all. My doubt relates only to the display part of the Gridview image. See the steps that are already working: I can upload to Firebase Storage. Each time an image is sent to your…
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answer221
viewsRecover Data from Firebase with Multiple Child
I’m using this structure to save the data: private void salvar() { Protocolo protocolo = new Protocolo(); protocolo.setAssunto(edtAssunto.getText().toString());…
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answer49
viewsTwo Apps the Same Bank
I have two Apps are Delivery the two connect with each other from the restaurant and the other from the Customer where he can place orders and consult the menu, etc. My doubt is the following can I…
firebaseasked 5 years ago user168237 -
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answer173
viewsError reading Firebase data
I try to read the data from firebase and put in the view Recycler, however is giving this error. Error:(77, 73) error: constructor Firebaserecycleradapter in class Firebaserecycleradapter cannot be…
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answers62
viewsUse firebase custom authentication method in Vuejs
I am trying to run firestore authentication through a custom token (JWT). However I am facing problems to do so. The firestore documentation asks us to install the 'npm firebase-admin' library,…
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answer920
viewsImport data to Firebase with JSON file
I am having problems with importing data to firebase, I transformed an excel spreadsheet into csv and then converted to a JSON file, the registration in Firebase is performed normally, but I would…