AWS Certified Developer Associate · Free Practice Question Medium
Question 56
A Developer is creating an AWS Lambda function that generates a new file each time it runs. Each new file must be checked into an AWS CodeCommit repository hosted in the same AWS account.
How should the Developer accomplish this?
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A
After the new file is created in Lambda, use cURL to invoke the CodeCommit API. Send the file to the repository
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B
Use an AWS SDK to instantiate a CodeCommit client. Invoke the put_file method to add the file to the repository
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C
When the Lambda function starts, use the Git CLI to clone the repository. Check the new file into the cloned repository and push the change
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D
Upload the new file to an Amazon S3 bucket. Create an AWS Step Function to accept S3 events. In the Step Function, add the new file to the repository
Reveal correct answer
Correct answer: B
Explanation
The Developer can use the AWS SDK to instantiate a CodeCommit client. For instance, the code might include the following:
The client can then be used with put_file which adds or updates a file in a branch in an AWS CodeCommit repository, and generates a commit for the addition in the specified branch.
The request syntax is as follows:
CORRECT: "Use an AWS SDK to instantiate a CodeCommit client. Invoke the put_file method to add the file to the repository" is the correct answer.
INCORRECT: "When the Lambda function starts, use the Git CLI to clone the repository. Check the new file into the cloned repository and push the change" is incorrect as there is no need to clone a repository, a file just needs to be added to an existing repository.
INCORRECT: "After the new file is created in Lambda, use cURL to invoke the CodeCommit API. Send the file to the repository" is incorrect as a URL cannot be used to invoke a CodeCommit client and upload and check in the file.
INCORRECT: "Upload the new file to an Amazon S3 bucket. Create an AWS Step Function to accept S3 events. In the Step Function, add the new file to the repository" is incorrect as Step Functions is not triggered by S3 events.
References:
https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/codecommit.html
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Discussion
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