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How to Sync Data from Firebase to Google Sheets

>Click here to Import Firebase to a Lido Spreadsheet

We have always talked about utilizing the power of Google Sheets to analyze huge amounts of data, helping us extrapolate meaningful insights about our market and the performance of our campaigns and products.


Today, we will connect Firebase Realtime Database to Google Sheets. If you're looking to connect Firestore instead of Firebase, we've written a separate guide for connecting Firestore to Google Sheets here.

For our reference, our simple database contains the following entry:

Firebase Realtime Database
Firebase Realtime Database


For the code to work, you should use the same Google account as the one you use for your Firebase database. Let’s start!

How to Connect Firebase to Google Sheets

Step 1: Open Google Apps Script in the Script editor

Go to Tools in the main menu, then click Script editor.

Tools, Script editor
Tools, Script editor

A new tab or window will load, leading you to Google Apps Script. 

Apps script, untitled project, blank code.gs
Apps script, untitled project, blank code.gs


Step 2: Add the FirebaseApp Library

On the left side of the screen, you would see a list of Files, Libraries, and Services. We want to use the FirebaseApp library and the Google Sheets API Services.

First, we will add the FirebaseApp library. Click the plus sign in the Libraries box. A box labeled Add a Library will appear. On the Script ID, add the following:


1hguuh4Zx72XVC1Zldm_vTtcUUKUA6iBUOoGnJUWLfqDWx5WlOJHqYkrt


Click Look up. You will get the following screen:

Add a library, Script ID, Version, Identifier
Add a library, Script ID, Version, Identifier


You will be asked to select the version and identifier. You can leave them as is.

Step 3: Authorize FirebaseApp to Access your Data

You need to authorize FirebaseApp to access your data. Click Review permissions.

Authorization required. Click Review permissions.
Authorization required. Click Review permissions.


You will be asked to choose an account to continue. Most of the time this should list the account you are currently using for your project. 

Choose an account, for selecting the Google account for access.
Choose an account, for selecting the Google account for access.


A list of permissions required will be listed after selecting the Google account. Click Allow.

List of permissions required
List of permissions required

Step 4: Add the Google Sheets API

To add the Google Sheets API, click the plus sign besides the Services box. A pop-up window will appear listing the Advanced Google Services that you can use. Look for Google Sheets API, then click Add.

Add a service. Google Sheets API highlighted.
Add a service. Google Sheets API highlighted.


Step 5: Add our Custom Code

Add the following code:

function getAllData() {

  var ss = SpreadsheetApp.getActiveSpreadsheet();

  var sheets = ss.getSheets();

  var sheet = ss.getActiveSheet();

 

  var firebaseUrl = "insert_the_firebase_url_here";

  var base = FirebaseApp.getDatabaseByUrl(firebaseUrl);

  var dataSet = [base.getData()];

  // the following lines will depend on the structure of your data

  //

 

  var rows = [],

      data;

 

  for (i = 0; i < dataSet.length; i++) {

    data = dataSet[i];

    rows.push([data.id, data.name]);

  }

 

  dataRange = sheet.getRange(1, 1, rows.length, 2);

  dataRange.setValues(rows);

 

}


You need to replace the insert_the_firebase_url_here with the actual URL of your Firebase database. You can access it by going to your Firebase database, and then clicking Realtime database.

The link will appear on the top of the box containing the data of your database. In the picture below, it has been erased on purpose for security. 

Firebase Realtime Database. The URL is erased for security.
Firebase Realtime Database. The URL is erased for security.


Step 6: Import Firebase Data to Google Sheets

Save the code by either clicking the Save button or by pressing Ctrl+S, then click Run.

Apps Script, Save button greyed out. Run button besides Save button.
Apps Script, Save button greyed out. Run button besides Save button.


The data will automatically appear in your Google Sheets.

Google Sheets. Data from Firebase loaded.
Google Sheets. Data from Firebase loaded.


I would like to add a lot of reminders before repurposing the code to export firebase to google sheets:


  • The following line strongly depends on the structure of your Realtime database:


rows.push([data.id, data.name])


You need to change the “words” following the data variable to the ones you actually use in your Realtime database.


  • Again, this method to sync firebase to google sheets only works if you are using the same Google account for both Google Sheets and Firebase. You may be asked for permission to access Firebase via the Apps Script. Allow it. If you will access a Firebase which is not hosted in your Google account, You need to ask for the service account credentials, which can be generated via Google Cloud Platform.


It took me hours to figure out this code to manage data across firebase and google sheets. I assembled the code from the following sources:

1- Quickstart: Read and write data in Firebase from Apps Script - Google Apps Script Examples

Sync a Google Sheets spreadsheet to a Firebase Realtime database

google script - json into google sheet


And I’ll be honest, it's a heck of a challenge. 


Consider that the hours you spend coding this could have, instead, been spent actually seeing the final metrics and making the right decisions for your business. 


I know a quicker way. 


It’s called Lido.


You don’t need to scour the web for a good working code only to find out you still need to modify it so that you can connect your Firebase to Google Sheets. Sign up here.


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