APIGW HTTP API linking lambda and APIGW logs.

notes.md

Some configuration for AWS API Gateway HTTP API with logging based on https://www.alexdebrie.com/posts/api-gateway-access-logs/

BackendAPI:
  Type: AWS::Serverless::HttpApi
  Properties:
    DefaultRouteSettings:
      ThrottlingBurstLimit: 10
      ThrottlingRateLimit: 10
      DetailedMetricsEnabled: true
    AccessLogSettings:
      DestinationArn: !GetAtt BackendAccessLogGroup.Arn
      Format: '{"requestTime":"$context.requestTime","requestId":"$context.requestId","httpMethod":"$context.httpMethod","path":"$context.path","resourcePath":"$context.resourcePath","status":$context.status,"responseLatency":$context.responseLatency,"ip":"$context.identity.sourceIp","userAgent":"$context.identity.userAgent","integrationRequestId":"$context.integration.requestId","functionResponseStatus":"$context.integration.status","integrationLatency":"$context.integration.latency","integrationServiceStatus":"$context.integration.integrationStatus"}'

The first entry is a lambda log line and the second is API Gateway access log.

2021/11/23/[$LATEST]56604917d020438e8fb951c0cdafd3b6 2021-11-23T05:13:56.395000 {
  "level": "info",
  "version": "25f604d",
  "aws_request_id": "24571860-d277-4f87-abc12-5b404e4101b2",
  "amzn_trace_id": "Root=1-619c7894-63e493da38e160a91da230ab;Parent=5bdba4dc67b01709;Sampled=0",
  "dur": "197.583976ms",
  "ip": "x.x.x.x",
  "length": 1195,
  "method": "GET",
  "path": "/latency_data",
  "status": 200,
  "caller": "github.com/wolfeidau/echo-middleware@v1.1.0/zlog_requests.go:49",
  "message": "processed request"
}
2021/11/23/[$LATEST]56604917d020438e8fb951c0cdafd3b6 2021-11-23T05:13:56.396000 END RequestId: 24571860-d277-4f87-abc12-5b404e4101b2
2021/11/23/[$LATEST]56604917d020438e8fb951c0cdafd3b6 2021-11-23T05:13:56.396000 REPORT RequestId: 24571860-d277-4f87-abc12-5b404e4101b2	Duration: 199.05 ms	Billed Duration: 200 ms	Memory Size: 256 MB	Max Memory Used: 55 MB	
abc123abc123_.default-2021-11-23-05-13 2021-11-23T05:13:56.174000 {
  "requestTime": "23/Nov/2021:05:13:56 +0000",
  "requestId": "JPfHLjaFvHcEPcQ=",
  "httpMethod": "GET",
  "path": "/latency_data",
  "resourcePath": "-",
  "status": 200,
  "responseLatency": 220,
  "ip": "x.x.x.x",
  "userAgent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:94.0) Gecko/20100101 Firefox/94.0",
  "integrationRequestId": "24571860-d277-4f87-abc12-5b404e4101b2",
  "functionResponseStatus": "200",
  "integrationLatency": "215",
  "integrationServiceStatus": "200"
}

How is BackendAccessLogGroup setup?