Using firestore in colab with python

Question

i'm trying to use firebase in colab with Python. But there is unsolvable error, so i need some help.

import firebase_admin
from firebase_admin import credentials
from firebase_admin import firestore


cred = credentials.Certificate('/content/myKey.json')
firebase_admin.initialize_app(cred) # error in this line
db = firestore.client()

ValueError: : The default Firebase app already exists. This means you called initialize_app() more than once without providing an app name as the second argument. In most cases you only need to call initialize_app() once. But if you do want to initialize multiple apps, pass a second argument to initialize_app() to give each app a unique name.

What can i do for solving this problem?

i also found similar answer with this, so i tried some many tips in there, like below.

import firebase_admin
from firebase_admin import credentials
from firebase_admin import firestore

if not firebase_admin._apps:
  cred = credentials.Certificate('/content/foodle-94e80-firebase-adminsdk-zr21t- f02504e9fb.json')
  firebase_admin.initialize_app(cred)
else:
  app = firebase_admin.get_app()

db = firestore.client(app) # new error in this line

but new error is confusing me.

DefaultCredentialsError: Could not automatically determine credentials. Please set GOOGLE_APPLICATION_CREDENTIALS or explicitly create credentials and re-run the application. For more information, please see https://cloud.google.com/docs/authentication/getting-started

What can i do?

Sonya · Accepted Answer · 2020-12-16 19:19:07Z

Looks like there's a default instance of the Firebase app getting initialized somewhere. When the default instance gets created, it uses GOOGLE_APPLICATION_CREDENTIALS instead of the credentials you pass in manually. You can either provide GOOGLE_APPLICATION_CREDENTIALS to the script, or ignore the default instance of the firebase app and create an explicitly named one.

To create an explicitly named app, change your code to provide a name:

import firebase_admin
from firebase_admin import credentials
from firebase_admin import firestore


cred = credentials.Certificate('/content/myKey.json')
firebase_admin.initialize_app(credential=cred, name='myApp') 
db = firestore.client()

To provide GOOGLE_APPLICATION_CREDENTIALS and use the default app:

If you're running your python script from the console, you can provide a value for that by running

export GOOGLE_APPLICATION_CREDENTIALS='/content/myKey.json'

In colab, you need to add this to your script:

import os
os.environ["GOOGLE_APPLICATION_CREDENTIALS"]="/content/myKey.json"

After this you can run your second example.

(To get the credentials JSON go to this page, select your firebase-adminsdk service account, click 'ADD KEY', 'Create new key', select JSON as your option and download the resulting file.)

Tobi · Accepted Answer · 2021-05-17 12:53:15Z

0

In my case it worked with

cred = credentials.Certificate("/content/drive/My Drive/Colab Notebooks/LALALA.json")
firebase_admin.initialize_app(cred)

answered May 17, 2021 at 12:53

Tobi

1,8122 gold badges30 silver badges44 bronze badges

Collectives™ on Stack Overflow

Using firestore in colab with python

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related