What should the developer do to configure the API to meet these requirements?

A developer at a company recently created a serverless application to process and show data from

business reports. The application’s user interface (UI) allows users to select and start processing the files. The Ul displays a message when the result is available to view. The application uses AWS Step Functions with AWS Lambda functions to process the files. The developer used Amazon API Gateway and Lambda functions to create an API to support the UI.

The company’s Ul team reports that the request to process a file is often returning timeout errors because of the see or complexity of the files. The Ul team wants the API to provide an immediate response so that the Ul can deploy a message while the files are being processed. The backend process that is invoked by the API needs to send an email message when the report processing is complete.

What should the developer do to configure the API to meet these requirements?
A . Change the API Gateway route to add an X-Amz-Invocation-Type header win a sialic value of ‘Event’ in the integration request Deploy the API Gateway stage to apply the changes.
B . Change the configuration of the Lambda function that implements the request to process a file. Configure the maximum age of the event so that the Lambda function will ion asynchronously.
C . Change the API Gateway timeout value to match the Lambda function ominous value. Deploy the API Gateway stage to apply the changes.
D . Change the API Gateway route to add an X-Amz-Target header with a static value of ‘A sync’ in the integration request Deploy me API Gateway stage to apply the changes.

View Answer

Answer: A

Explanation:

This solution allows the API to invoke the Lambda function asynchronously, which means that the API will return an immediate response without waiting for the function to complete. The X-Amz-Invocation-Type header specifies the invocation type of the Lambda function, and setting it to ‘Event’ means that the function will be invoked asynchronously. The function can then use Amazon Simple Email Service (SES) to send an email message when the report processing is complete.

Reference: [Asynchronous invocation], [Set up Lambda proxy integrations in API Gateway]