[Solved] What is wrong with this AWS Lambda handler function in Python?def handler(event): return 'Done' — Ans: Missing the required context parameter | AWS

AWS - Lambda

What is wrong with this AWS Lambda handler function in Python?

def handler(event):
    return 'Done'

AMissing the required <code>context</code> parameter

BReturn value must be a dictionary

CFunction name must be <code>lambda_handler</code>

DNo error, this is valid

Step-by-Step Solution

Solution:

Step 1: Check function parameters
AWS Lambda handler functions must accept two parameters: event and context. This function only has event.
Step 2: Validate other options
Return type can vary by trigger, so returning a string is allowed. Function name can be configured, so handler is acceptable. Hence, only missing context is an error.
Final Answer:
Missing the required context parameter -> Option A
Quick Check:
Lambda handler needs event and context parameters [OK]

Quick Trick: Always include event and context parameters [OK]

Common Mistakes:

MISTAKES

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What is wrong with this AWS Lambda handler function in Python?