API key management in Prompt Engineering / GenAI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to load the API key from an environment variable.

Prompt Engineering / GenAI

import os
api_key = os.getenv([1])

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

A"api_key"

BAPI_KEY

C"API_KEY"

Dapi_key

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around the environment variable name.

The environment variable name must be a string, so it needs quotes. "API_KEY" is the correct string key.

2fill in blank

medium

Complete the code to check if the API key is missing and raise an error.

Prompt Engineering / GenAI

if [1] is None:
    raise ValueError("API key is missing")

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

Aapi_key is None

Bapi_key

Capi_key == ''

Dnot api_key

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' instead of 'is' to check None.

Checking if api_key is None is the correct way to detect a missing environment variable.

3fill in blank

hard

Fix the error in the code to securely store the API key in a variable.

Prompt Engineering / GenAI

def store_key():
    [1] = os.getenv("API_KEY")
    return api_key

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

Aapi_key

BAPI_KEY

Ckey

DapiKey

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different variable name than the one returned.

The variable used inside the function must match the returned variable name. Using 'api_key' is correct.

4fill in blank

hard

Fill both blanks to create a function that validates the API key length and raises an error if invalid.

Prompt Engineering / GenAI

def validate_key(key):
    if len(key) [1] 32:
        raise ValueError("Invalid API key length")
    return True

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

A==

B>

C!=

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '>' instead of '<' for length check.

The API key length should be less than 32 to raise an error if too short.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps API key names to their masked versions if the key length is valid.

Prompt Engineering / GenAI

masked_keys = [1]: key[:4] + '****' + key[-4:] for [2], key in keys.items() if len(key) [3] 32

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

A{name

Bname

C<=

Dkey

Attempts:

3 left

💡 Hint

Common Mistakes

Missing curly braces in comprehension.

Using wrong comparison operator.

The dictionary comprehension syntax requires curly braces and key-value pairs. The length check uses '<=' to allow keys of length 32.