Why file storage is needed in Firebase - See It in Action

Why File Storage is Needed in Firebase

📖 Scenario: You are building a simple app where users can upload and share photos. You need a place to keep these photos safe and accessible.

🎯 Goal: Understand why file storage is important by setting up a basic Firebase Storage structure to hold user files.

📋 What You'll Learn

Create a dictionary called files with example file names and sizes

Add a configuration variable max_file_size to limit upload size

Write a loop using for file_name, size in files.items() to check files against the limit

Add a final configuration storage_bucket to specify the Firebase Storage location

💡 Why This Matters

🌍 Real World

Apps like photo sharing, document storage, and music apps need file storage to save user content securely.

💼 Career

Understanding file storage setup is key for cloud developers managing user data and building scalable apps.

1

Create example file data

Create a dictionary called files with these exact entries: 'photo1.jpg': 1500, 'document.pdf': 3000, 'music.mp3': 5000

Firebase

# Create a dictionary called files with file names and sizes
# Your code here

Need a hint?

Use curly braces to create a dictionary with keys as file names and values as sizes in KB.

2

Add a max file size limit

Add a variable called max_file_size and set it to 4000 to limit the size of files that can be uploaded

Firebase

files = {'photo1.jpg': 1500, 'document.pdf': 3000, 'music.mp3': 5000}
# Add max_file_size variable below
# Your code here

Need a hint?

Just create a variable and assign the number 4000 to it.

3

Check files against the size limit

Use a for loop with variables file_name and size to iterate over files.items() and check if each file size is less than or equal to max_file_size

Firebase

files = {'photo1.jpg': 1500, 'document.pdf': 3000, 'music.mp3': 5000}
max_file_size = 4000
# Loop through files and check size
# Your code here

Need a hint?

Use a for loop to go through each file and an if statement to compare sizes.

4

Specify the Firebase Storage bucket

Add a variable called storage_bucket and set it to the string 'gs://myapp-uploads' to specify the Firebase Storage location

Firebase

files = {'photo1.jpg': 1500, 'document.pdf': 3000, 'music.mp3': 5000}
max_file_size = 4000
for file_name, size in files.items():
    if size <= max_file_size:
        pass
# Add storage_bucket variable below
# Your code here

Need a hint?

Set the storage_bucket variable to the Firebase Storage URL string.