You created a POST method on resource /orders in API Gateway but get a 403 Forbidden error when testing. What is the most likely cause?

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AWS - API Gateway

You created a POST method on resource /orders in API Gateway but get a 403 Forbidden error when testing. What is the most likely cause?

AThe MOCK integration is missing a response template.

BThe resource path <code>/orders</code> is misspelled in the client request.

CThe method does not have permission to invoke the backend service.

DThe API Gateway does not support POST methods.

Step-by-Step Solution

Solution:

Step 1: Understand 403 Forbidden in API Gateway
403 usually means permission denied to invoke backend or access resource.
Step 2: Check method permissions
POST method likely lacks permission to call backend service, causing 403 error.
Final Answer:
The method does not have permission to invoke the backend service. -> Option C
Quick Check:
403 = permission denied [OK]

Quick Trick: 403 means permission denied to backend [OK]

Common Mistakes:

MISTAKES

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