Which solution will meet these requirements?
Set up an Amazon API Gateway REST API with a gateway response configured for status code 200. Add response templates that contain sample responses captured from the real third-party API.
Set up an AWS AppSync GraphQL API with a data source configured for each third-party API. Specify an integration type of Mock. Configure integration responses by using sample responses captured from the real third-party API.
Create an AWS Lambda function for each third-party API. Embed responses captured from the real third-party API. Configure Amazon Route 53 Resolver with an inbound endpoint for each Lambda function’s Amazon Resource Name (ARN).
Set up an Amazon API Gateway REST API for each third-party API. Specify an integration request type of Mock. Configure integration responses by using sample responses captured from the real third-party API.
Explanations:
While setting up an Amazon API Gateway REST API with a gateway response configured for status code 200 can simulate a successful response, it does not allow for mock integration responses tailored to the specific scenarios that the developer may want to test. It lacks flexibility for various response types that may be needed for comprehensive testing.
AWS AppSync is designed primarily for GraphQL applications and does not support mocking REST API calls. Although it allows for mock data responses, it is not an appropriate choice for integrating with RESTful third-party payment APIs, which are the focus of this integration.
Creating AWS Lambda functions for each third-party API and embedding responses captured from the real APIs would require an additional layer of management and routing (using Amazon Route 53 Resolver), which complicates the architecture unnecessarily. This approach does not focus on simulating API calls effectively for the purpose of testing the integration code.
Setting up an Amazon API Gateway REST API for each third-party API with an integration request type of Mock allows the developer to create a controlled testing environment. This setup enables the simulation of various responses that can be configured according to the developer’s testing needs, effectively validating the integration code without invoking the actual third-party APIs.
I value that the answer is:
Set up an Amazon API Gateway REST API for each third-party API. Specify an integration request type of Mock. Configure integration responses by using sample responses captured from the real third-party API.