A company’s web app publishes JSON logs with transaction status to CloudWatch Logs.

Create an OpenSearch cluster and subscription filter to send logs; create OpenSearch dashboard with queries for success.

Create a CloudWatch subscription filter with Lambda to parse logs and publish custom metrics; create CloudWatch dashboard with metric graph.

Create a CloudWatch metric filter on the log group with a pattern matching success; create CloudWatch dashboard with metric graph.

Create a Kinesis data stream subscribed to the log group; filter logs by success; send to Lambda; Lambda publishes custom metrics; dashboard uses metric graph.