Accessing Cloud Firestore using Google Services (Cloud Shell: console.cloud.google)

Getting Started with Cloud Firestore with Node.js - Firecasts

This is what the video above suggested, when you want to run your own NodeJS server.


const firebase_admin = require('firebase-admin');
const serviceAccount = require("/path/to/yourserviceaccountkey.json");
const admin = firebase_admin.initializeApp({
    credential: firebase_admin.credential.cert(serviceAccount)
});

What if I don’t have ServiceAccountKey.json?

Make sure to add and initialize the SDK by following these steps:

Add the Firebase Admin SDK to your server | Firebase Documentation

https://firebase.google.com/docs/admin/setup#initialize-sdk

By following the steps in that article, you can generate that JSON file.

An alternative (and easier) approach by just using the Google Cloud Shell:

Open Google Cloud Shell editor: https://console.cloud.google.com/home/

Create a new file.

Add the Firebase Admin SDK to your server

npm install firebase-admin

Now you have access to your firestore!


const admin = require('firebase-admin');
admin.initializeApp(
    {
        credential: admin.credential.applicationDefault(),
        projectId: "xxxxx-xxxx",
        databaseURL: "YOUR_DATABASE_URL", 
    }
);

// Initialize Cloud Firestore and get a reference to the service
const db = admin.firestore();

// Read or write to the firestore database

db.collection("users")
.get().then((querySnapshot) => {
    querySnapshot.forEach((doc) => {
			console.log(doc.data());
    }); 
});

References:

https://firebase.google.com/docs/admin/setup