Your development team has set up the AWS API gateway service. The resources and methods have been set up. Now a staging environment has been set up to test the service. You need to monitor the end to end execution trace of the request to the API gateway. Which one of the following services can help you achieve this?

Answer options:

A.AWS Config
B.AWS X-Ray
C.AWS Cloudtrail
D.AWS Cloudwatch

Answer – B
The AWS Documentation mentions the following.
You can use AWS X-Ray to trace and analyze user requests as they travel through your Amazon API Gateway APIs to the underlying services. API Gateway supports AWS X-Ray tracing for all API Gateway endpoint types: regional, edge-optimized, and private. You can use AWS X-Ray with Amazon API Gateway in all regions where X-Ray is available.
X-Ray gives you an end-to-end view of an entire request. So you can analyze latencies in your APIs and their backend services. You can use an X-Ray service map to view the latency of an entire request and that of the downstream services that are integrated with X-Ray. And you can configure sampling rules to tell X-Ray which requests to record, at what sampling rates, according to criteria that you specify. If you call an API Gateway API from a service that`s already being traced, API Gateway passes the trace through, even if X-Ray tracing is not enabled on the API.
Option A is incorrect since this service is used to monitor configuration changes.
Option C is incorrect since this service is used for API monitoring.
Option D is incorrect since this service is used for logging purposes.
For more information on API gateway and X-Ray, please refer to the below URL-
https://docs.aws.amazon.com/apigateway/latest/developerguide/apigateway-xray.html