You are working on a REST API where you require to pass client submitted method requests as it is to a Lambda Function. Which of the following can be set as an Integration type for this requirement?

Answer options:

A."type": "aws_proxy"
B."type": "aws"
C."type": "http_proxy"
D."type": "mock"

Correct Answer – A
Integration Type “Aws_Proxy” can be used for an API method to be integrated with the Lambda Function where incoming requests from the clients are passed as input to Lambda Function.
Option B is incorrect with AWS integration. There is a mapping between method request & integration request along with method response & integration response. This is not a suitable integration type for passing client requests to the Lambda function directly.
Option C is incorrect as the "http_proxy" integration allows clients to access backend HTTP endpoints. This is not a suitable integration type for passing client requests to the Lambda function directly.
Option D is incorrect as mock integration type is used to test integration type with API Gateway sending response without sending request to backend.
 For more information on choosing API Gateway API Integration type, refer to the following URL-
https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-api-integration-types.html