Firebase Admin SDK (Node.js) - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to initialize the Firebase Admin SDK.

Firebase

const admin = require('firebase-admin');

admin.[1]();

Drag options to blanks, or click blank then click option'

AlaunchApp

BinitializeApp

CinitFirebase

DstartApp

Attempts:

3 left

💡 Hint

Common Mistakes

Using a method name that does not exist like startApp or launchApp.

Forgetting to call the method as a function.

The initializeApp() method starts the Firebase Admin SDK so you can use its services.

2fill in blank

medium

Complete the code to get a Firestore database instance.

Firebase

const db = admin.[1]();

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Adatabase

BgetDatabase

CgetFirestore

Dfirestore

Attempts:

3 left

💡 Hint

Common Mistakes

Using getFirestore() which is not a method on admin directly.

Using database() which is for Realtime Database, not Firestore.

The firestore() method returns the Firestore database instance from the Admin SDK.

3fill in blank

hard

Fix the error in the code to send a message using Firebase Cloud Messaging.

Firebase

const message = { token: userToken, notification: { title: 'Hello', body: 'World' } };

admin.messaging().[1](message)
  .then(response => console.log('Sent:', response))
  .catch(error => console.error('Error:', error));

Drag options to blanks, or click blank then click option'

Asend

Bpublish

CsendMessage

Ddispatch

Attempts:

3 left

💡 Hint

Common Mistakes

Using sendMessage which does not exist in the Admin SDK.

Using publish or dispatch which are not Firebase methods.

The correct method to send a message with Firebase Cloud Messaging is send().

4fill in blank

hard

Fill in the blank to create a new user with email and password using Firebase Admin SDK.

Firebase

admin.auth().[1]({ email: userEmail, password: userPassword })
  .then(userRecord => console.log('User created:', userRecord.uid))
  .catch(error => console.error('Error:', error));

Drag options to blanks, or click blank then click option'

AregisterUser

BaddUser

CcreateUser

DnewUser

Attempts:

3 left

💡 Hint

Common Mistakes

Using addUser or registerUser which are not valid Admin SDK methods.

Using newUser which does not exist.

The method to create a new user is createUser().

5fill in blank

hard

Fill in the two blanks to update a user's display name and photo URL.

Firebase

admin.auth().updateUser(userId, { displayName: [1], photoURL: [2] })
  .then(userRecord => console.log('Updated user:', userRecord.uid))
  .catch(error => console.error('Error:', error));

Drag options to blanks, or click blank then click option'

A'New Name'

B'https://example.com/photo.jpg'

CuserId

D'Anonymous'

Attempts:

3 left

💡 Hint

Common Mistakes

Using userId as a value for displayName or photoURL.

Not using quotes around string values.

To update user profile fields, provide string values for displayName and photoURL.