Control Behavior of API's Front-end Interactions

Answer - A and C.

This is also mentioned in the AWS Documentation.

As an API developer, you control the behaviors of your API's frontend interactions by configuring the method request and a method response.

You control the behaviors of your API's backend interactions by setting up the integration request and integration response.

These involve data mappings between a method and its corresponding integration.

Options B and D are incorrect since these are used to control the behaviors of your API's backend interactions.

For more information on creating an API via the gateway, please refer to the below Link-

https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-create-api-from-example-console.html

API Gateway is a fully managed service that makes it easier for developers to create, publish, and manage APIs at any scale. It provides a range of features such as authentication, authorization, monitoring, and caching to help developers build robust and secure APIs. In this context, the question is asking about controlling the behavior of an API's front-end interactions.

To achieve this goal, you need to modify the configurations of the method and integration requests and responses. These configurations define how the API Gateway processes incoming requests and outgoing responses. Here's a detailed explanation of each option:

A. Modify the configuration of the Method request: The method request configuration defines how API Gateway handles incoming requests before they reach the backend integration. For example, you can specify the required headers, query parameters, or path parameters that must be present in the request to access the API. You can also configure request validation rules to ensure that the incoming data is in the correct format and meets specific criteria. Modifying the method request configuration is useful when you need to control how the API Gateway interacts with the front-end clients.

B. Modify the configuration of the Integration request: The integration request configuration defines how API Gateway sends the request to the backend integration. It includes information such as the HTTP method, endpoint URL, headers, and body. You can use this configuration to customize the request sent to the backend, add query parameters or modify the request payload. This is useful when you need to modify the request sent to the backend based on the requirements of the front-end clients.

C. Modify the configuration of the Method response: The method response configuration defines how API Gateway handles the response received from the backend integration. For example, you can specify the headers, status codes, or response templates to send back to the front-end clients. This configuration is useful when you need to customize the response sent back to the client based on the requirements.

D. Modify the configuration of the Integration response: The integration response configuration defines how API Gateway handles the response received from the backend integration before sending it to the front-end clients. It includes information such as the headers, status codes, and response templates. You can use this configuration to customize the response sent to the front-end clients based on the requirements. This is useful when you need to modify the response received from the backend based on the requirements of the front-end clients.

In summary, options A and B are correct as they involve modifying the configurations of the method and integration requests, respectively. Options C and D are incorrect as they involve modifying the configurations of the method and integration responses, respectively.