Integrating AWS X-Ray

Objective

Use AWS X-Ray to trace and inspect the entire processing flow of API Gateway → Lambda → DynamoDB.
X-Ray helps visualize traces, latency, errors, and segments/subsegments to ensure the API behaves correctly and efficiently.

Implementation Steps

1. Access IAM Service

• Go to AWS Console → IAM

• Select Roles → LambdaAPIAccessRole

• Choose Add permissions → Attach policies → AWSXRayDaemonWriteAccess

2. Access Lambda

• Go to AWS Console → Lambda

• Select Functions → DynamoDB_API_Handler
• Go to
  Configuration → Monitoring and operations tools → Additional monitoring tools → Edit

• Under Lambda service traces, enable Enable

3. Access API Gateway

• Go to AWS Console → API Gateway

• Select APIs → FlyoraAPI
• Go to
  Stages → Logs and tracing → Edit

• Check X-Ray tracing

4. Testing

• Go to AWS Console → Lambda

• In the Test tab, click Create new event

• Event name: test

• Paste the JSON below into the event:

  {
  "resource": "/{myProxy+}",
  "path": "/api/v1/bird-types",
  "httpMethod": "GET",
  "headers": {},
  "multiValueHeaders": {},
  "queryStringParameters": {},
  "multiValueQueryStringParameters": {},
  "pathParameters": {},
  "stageVariables": {},
  "requestContext": {
      "identity": {}
  },
  "body": null,
  "isBase64Encoded": false
  }
  

• Save -> Test

• Next, go to AWS Console → X-ray

• In tab Traces, a new trace ID will appear

• Click it to view detailed trace information