[Solved] Identify the error in this Python webhook verification snippet: import hmac import hashlib secret = "mysecret" payload = "data" signature = "abc123" computed = hmac.new(secret, payload.... | Rest API

Rest API - Webhooks and Events

Identify the error in this Python webhook verification snippet:

import hmac
import hashlib

secret = "mysecret"
payload = "data"
signature = "abc123"

computed = hmac.new(secret, payload.encode(), hashlib.sha256).hexdigest()
if computed == signature:
    print("Verified")
else:
    print("Not verified")

Apayload should not be encoded

Bhashlib.md5 should be used instead of sha256

Csecret should be encoded before use in hmac.new

Dsignature comparison should use != instead of ==

Step-by-Step Solution

Solution:

Step 1: Check data types for hmac.new
hmac.new requires the secret key as bytes, but secret is a string and not encoded.
Step 2: Identify correct fix
Encoding secret with secret.encode() fixes the error; payload encoding is correct.
Final Answer:
secret should be encoded before use in hmac.new -> Option C
Quick Check:
Secret must be bytes, so encode it [OK]

Quick Trick: Encode secret string before hmac.new call [OK]

Common Mistakes:

MISTAKES

Not encoding secret key
Changing payload encoding incorrectly
Using wrong hash function
Wrong comparison operator

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More Rest API Quizzes

Identify the error in this Python webhook verification snippet:

Step 1: Check data types for hmac.new

Step 2: Identify correct fix

Final Answer:

Quick Check:

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