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Question 289 - DVA-C02 discussion

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A company is using the AWS Serverless Application Model (AWS SAM) to develop a social media application. A developer needs a quick way to test AWS Lambda functions locally by using test event payloads. The developer needs the structure of these test event payloads to match the actual events that AWS services create.

A.

Create shareable test Lambda events. Use these test Lambda events for local testing.

Answers
A.

Create shareable test Lambda events. Use these test Lambda events for local testing.

B.

Store manually created test event payloads locally. Use the sam local invoke command with the file path to the payloads.

Answers
B.

Store manually created test event payloads locally. Use the sam local invoke command with the file path to the payloads.

C.

Store manually created test event payloads in an Amazon S3 bucket. Use the sam local invoke command with the S3 path to the payloads.

Answers
C.

Store manually created test event payloads in an Amazon S3 bucket. Use the sam local invoke command with the S3 path to the payloads.

D.

Use the sam local generate-event command to create test payloads for local testing.

Answers
D.

Use the sam local generate-event command to create test payloads for local testing.

Suggested answer: D

Explanation:

Comprehensive Detailed Step by Step Explanation with All AWS Developer

Reference:

The AWS Serverless Application Model (SAM) includes features for local testing and debugging of AWS Lambda functions. One of the most efficient ways to generate test payloads that match actual AWS event structures is by using the sam local generate-event command.

sam local generate-event: This command allows developers to create pre-configured test event payloads for various AWS services (e.g., S3, API Gateway, SNS). These generated events accurately reflect the format that the service would use in a live environment, reducing the manual work required to create these events from scratch.

Operational Overhead: This approach reduces overhead since the developer does not need to manually create or maintain test events. It ensures that the structure is correct and up-to-date with the latest AWS standards.

Alternatives:

Option A suggests using shareable test events, but manually creating or sharing these events introduces more overhead.

Option B and C both involve manually storing and maintaining test events, which adds unnecessary complexity compared to using sam local generate-event.

AWS SAM CLI documentation

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asked 23/10/2024
Rostyslav Skrypnyk
48 questions
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