Retry and failure handling in Rest API - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to retry the API call once if it fails.

Rest API

response = requests.get(url)
if response.status_code != 200:
    response = requests.[1](url)

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

Aget

Bdelete

Cpost

Dput

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different HTTP method like post or put for retry.

Not retrying the request at all.

The retry should use the same HTTP method get to fetch the resource again.

2fill in blank

medium

Complete the code to catch exceptions during the API call and retry once.

Rest API

try:
    response = requests.get(url)
except [1]:
    response = requests.get(url)

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

AValueError

BTypeError

CKeyError

Drequests.exceptions.RequestException

Attempts:

3 left

💡 Hint

Common Mistakes

Catching unrelated exceptions like ValueError or KeyError.

Not catching exceptions at all.

Use requests.exceptions.RequestException to catch all request-related errors.

3fill in blank

hard

Fix the error in the retry logic to limit retries to 3 attempts.

Rest API

max_retries = 3
attempt = 0
while attempt < max_retries:
    try:
        response = requests.get(url)
        if response.status_code == 200:
            break
    except requests.exceptions.RequestException:
        pass
    [1] += 1

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

Aurl

Battempt

Cresponse

Dmax_retries

Attempts:

3 left

💡 Hint

Common Mistakes

Incrementing the wrong variable.

Not incrementing any variable causing infinite loop.

The variable attempt must be incremented to count retries and avoid infinite loops.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that retries only for status codes 500 or 502.

Rest API

retry_status = {code: True for code in [[1], [2]]}

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

A500

B404

C502

D403

Attempts:

3 left

💡 Hint

Common Mistakes

Including client error codes like 404 or 403.

Using the same code twice.

Status codes 500 and 502 indicate server errors where retrying is appropriate.

5fill in blank

hard

Fill all three blanks to build a retry loop that waits 2 seconds between attempts and stops after 5 tries.

Rest API

import time
max_attempts = [1]
attempt = 0
while attempt < max_attempts:
    try:
        response = requests.get(url)
        if response.status_code == 200:
            break
    except requests.exceptions.RequestException:
        pass
    time.sleep([2])
    attempt [3] 1

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

A5

B2

C+=

D-=

Attempts:

3 left

💡 Hint

Common Mistakes

Using too few or too many retries.

Forgetting to increment the attempt counter.

Using wrong operator for increment.

The loop retries 5 times, waits 2 seconds between tries, and increments attempt by 1 each time.