Cloud Functions setup in Firebase - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the first step to set up Firebase Cloud Functions?

Initialize your Firebase project locally using firebase init functions. This sets up the necessary files and folders for Cloud Functions.

beginner

Which file contains the main code for Firebase Cloud Functions?

The index.js or index.ts file inside the functions folder contains the main Cloud Functions code.

beginner

How do you deploy your Firebase Cloud Functions to the cloud?

Run firebase deploy --only functions in your terminal to upload and activate your Cloud Functions in Firebase.

intermediate

What is the purpose of the package.json file in Cloud Functions setup?

It manages dependencies and scripts for your Cloud Functions project, like which Node.js packages your functions need.

intermediate

Why should you test Cloud Functions locally before deploying?

Testing locally helps catch errors early and ensures your functions work as expected, saving time and avoiding deployment issues.

Which command initializes Cloud Functions in a Firebase project?

A firebase create functions

B firebase start functions

C firebase deploy functions

D firebase init functions

The command firebase init functions sets up the Cloud Functions environment locally.

Where do you write your Firebase Cloud Functions code?

A In the <code>functions/index.js</code> file

B In the <code>public/index.html</code> file

C In the Firebase console only

D In the <code>database.rules.json</code> file

Cloud Functions code is written in functions/index.js or index.ts.

What does firebase deploy --only functions do?

A Starts the local emulator

B Uploads only Cloud Functions to Firebase

C Deletes all Cloud Functions

D Deploys the entire Firebase project

This command deploys only the Cloud Functions part of your Firebase project.

Which file lists the Node.js packages your Cloud Functions need?

A package.json

B firebase.json

C index.js

D functions.json

package.json manages dependencies for your Cloud Functions.

Why is local testing of Cloud Functions recommended?

A To deploy faster

B To avoid writing code

C To catch errors before deployment

D To skip authentication

Local testing helps find and fix errors early, making deployment smoother.

Describe the basic steps to set up and deploy a Firebase Cloud Function.

Think about starting, coding, preparing, and sending your function to the cloud.

Explain why managing dependencies with package.json is important in Cloud Functions setup.

Consider what happens if your function needs a library that isn't installed.