Firebase Emulator Suite - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start the Firebase Emulator Suite with Firestore emulator.

Firebase

firebase emulators:start --only [1]

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

Afunctions

Bdatabase

Chosting

Dfirestore

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'database' instead of 'firestore' which refers to the Realtime Database emulator.

Using 'hosting' or 'functions' which start other emulators.

The firestore emulator is started by specifying --only firestore in the command.

2fill in blank

medium

Complete the code to configure the Firebase Emulator Suite to use the Authentication emulator on port 9099.

Firebase

firebase emulators:start --only auth --[1]=9099

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

AauthPort

Bport

Cauth-port

Dauth_port

Attempts:

3 left

💡 Hint

Common Mistakes

Using camelCase or underscores in the flag name which are not valid in CLI flags.

Using a generic --port flag which does not specify the service.

The correct flag to specify the port for the Authentication emulator is --auth-port.

3fill in blank

hard

Fix the error in the Firebase Emulator Suite configuration file to correctly specify the Firestore emulator host and port.

Firebase

{
  "emulators": {
    "firestore": {
      "host": "[1]",
      "port": 8080
    }
  }
}

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

Alocalhost

B0.0.0.0

C127.0.0.1

Dfirebase

Attempts:

3 left

💡 Hint

Common Mistakes

Using 0.0.0.0 which listens on all interfaces but is not recommended here.

Using firebase which is not a valid hostname.

The Firestore emulator host should be set to localhost to run locally on your machine.

4fill in blank

hard

Fill both blanks to configure the Firebase Emulator Suite to start Firestore and Functions emulators.

Firebase

firebase emulators:start --only [1],[2]

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

Afirestore

Bdatabase

Cfunctions

Dhosting

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'database' instead of 'firestore' for Firestore emulator.

Using 'hosting' which starts the hosting emulator instead of functions.

To start both Firestore and Functions emulators, use --only firestore,functions.

5fill in blank

hard

Fill all three blanks to configure the Firebase Emulator Suite to start Firestore, Authentication, and Hosting emulators with their default ports.

Firebase

firebase emulators:start --only [1],[2],[3]

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

Afirestore

Bauth

Chosting

Dfunctions

Attempts:

3 left

💡 Hint

Common Mistakes

Including 'functions' which is not requested.

Using full service names instead of short emulator names.

The command starts Firestore, Authentication, and Hosting emulators by listing them separated by commas.