Questions tagged as 'firebase-database'

Tagged questions
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What is Firebase?

I have not been on Android for some time and I have not had a chance to mess with Firebase. But he is very quoted in the questions of the SOPT. After all, what is Firebase? Is it a set of technologies? What are your most frequently used...
asked by 22.04.2018 / 01:48
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Firebase getDisplayName () returns empty

I have the following code that should return the user data logged in by Firebase, it returns the user with no problem, ID and Email, but the value of the name returns empty or null. As if the unnamed user was registered, but the user name usuall...
asked by 19.11.2018 / 21:25
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Firebase database resets data when logo

I was studying FireBase and I created a login method with email and password, but I did not want to use this, so I learned how to use Google Auth, so I decided to associate the google auth account in the database. When I log in with the accou...
asked by 09.05.2018 / 05:01
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Firebase data reading always returns null

I'm trying to read data from users that are stored in Firebase through an Android application. I'm always having null in TextViews, but I see the value in the Logcat of Android Studio. I have already checked my security rules and they...
asked by 24.02.2018 / 22:41
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I can not save data in the Firebase database - React Native

I can not save data in the Firebase - React Native database. I have already installed and imported Firebase into the project, the code looks like this: componentWillMount(){ var config = { apiKey: "***************************", auth...
asked by 07.12.2018 / 14:50
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Failed to connect database: Connection lost to database - Firebird and Delphi application

I have a server with over sixty client databases that currently operate with Firebird 3.0.3.32900 and an application in Delphi that is responsible for synchronizing logs from one end to the other. To exemplify, the application is responsible for...
asked by 03.12.2018 / 15:50
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Retrieve the amount of children that have a node

How do I retrieve the amount of children I have in a node? I already have the correct path, I just need to know how I can tell the children of this node. private DatabaseReference qtdeFilRef; qtdeFilhosRef.child("primeiroNo").child("seg...
asked by 21.09.2018 / 13:57
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Data coming from Firebase takes time to finish loading and disrupts the ordering of objects

I'm trying to sort an object by a value that comes from Firebase. I use a JsonParcer class to list the database and according to the ID get the field I need in Firebase, which in the case is a coordinate so that with it I calculate the distance....
asked by 26.12.2018 / 00:32
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Error uploading with FireBaseStorage.net with Xamarin

I developed the following routine to upload images. var task = new FirebaseStorage("xxxxxx.appspot.com") .Child("data") .Child("random") .Child("file.png") .PutAsync(img); When I...
asked by 26.08.2018 / 21:40
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Multi-Tenant with firebase

I'm starting a web system and it will be multi-tenant, I want to do using the firebase database, but I have not yet come up with a way to associate a user with a tenant (company) so he only has access to that company's tree. I use the following...
asked by 31.03.2018 / 01:13