Environment-based settings in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to load environment variables using Pydantic BaseSettings.

FastAPI

from pydantic import BaseSettings

class Settings(BaseSettings):
    app_name: str

settings = Settings([1])

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

Afile='.env'

Bconfig_file='.env'

Cenv_file='.env'

Dload_env='.env'

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect parameter names like config_file or file.

Not passing any parameter and expecting automatic loading.

The env_file parameter tells Pydantic to load variables from a .env file.

2fill in blank

medium

Complete the code to access the environment variable DATABASE_URL from settings.

FastAPI

from pydantic import BaseSettings

class Settings(BaseSettings):
    database_url: str

settings = Settings(env_file='.env')

print(settings.[1])

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

Adatabase_url

BDATABASE_URL

CDatabaseUrl

Ddb_url

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to access settings.DATABASE_URL instead of settings.database_url.

Using camelCase or other naming styles.

Attributes in the Settings class are accessed using lowercase snake_case names.

3fill in blank

hard

Fix the error in the code to correctly load environment variables with a custom .env file.

FastAPI

from pydantic import BaseSettings

class Settings(BaseSettings):
    secret_key: str

settings = Settings([1]='config.env')

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

Aenvpath

Benv_file

Cenvfile

Dfile_path

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect parameter names like envpath or envfile.

Using camelCase instead of snake_case.

The correct parameter name to specify a custom environment file is env_file.

4fill in blank

hard

Fill both blanks to create a settings class that reads API_KEY and DEBUG from environment variables.

FastAPI

from pydantic import BaseSettings

class Settings(BaseSettings):
    api_key: [1]
    debug: [2]

settings = Settings(env_file='.env')

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

Astr

Bbool

Cint

Dfloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using int or float for API key or debug values.

Mixing up the types for api_key and debug.

api_key is a string and debug is a boolean flag.

5fill in blank

hard

Fill all three blanks to create a settings class that loads HOST, PORT, and USE_SSL with correct types.

FastAPI

from pydantic import BaseSettings

class Settings(BaseSettings):
    host: [1]
    port: [2]
    use_ssl: [3]

settings = Settings(env_file='.env')

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

Astr

Bint

Cbool

Dfloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using float for port number.

Using string for use_ssl instead of bool.

Mixing types between host, port, and use_ssl.

host is a string, port is an integer, and use_ssl is a boolean.