What is the best way to retrieve an array of objects from Firebase?

Question

What is the best way to retrieve an array of objects from Firebase?

I am looking to retrieve an array of objects containing sources from Firebase, organized by category. The structure of my Firebase data is as follows: view image here

Each authenticated user has their own array of sources with security rules for the database outlined here: view image here Every source consists of an array of articles and belongs to a specific category. I have used Vuefire to bind to the Firebase database. I've set up the initial code below, but I'm unsure about the next steps to group all sources by category.

var sources=[];
var db=firebase.database();
var id=auth.user().uid;
var userDb=db.ref(id);

javascript firebase firebase-realtime-database vue.js

Answer 1

Answer №1

Imagine a scenario where you need to fetch data from a Firebase database. Here's an example that can help you understand the process:

function fetchData(data) {
    var items = data.val();
    console.log(items, 'myItem') //the retrieved items
}

function handleErrors(err) {
    console.log('error:', err)
}

const userID = firebase.auth().currentUser.uid;
const dataRef = firebase.database().ref(userID);
dataRef.on('value', fetchData, handleErrors)

Answer 2

Imagine a scenario where you need to fetch data from a Firebase database. Here's an example that can help you understand the process:

function fetchData(data) {
    var items = data.val();
    console.log(items, 'myItem') //the retrieved items
}

function handleErrors(err) {
    console.log('error:', err)
}

const userID = firebase.auth().currentUser.uid;
const dataRef = firebase.database().ref(userID);
dataRef.on('value', fetchData, handleErrors)

What is the best way to retrieve an array of objects from Firebase?

Answer №1

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