{
  "implementation_pattern": {
    "step1": {
      "action": "Receive HTTPS POST request",
      "details": "Extract headers and body"
    },
    "step2": {
      "action": "Validate HMAC signature",
      "details": "Compare X-Webhook-Signature with calculated hash"
    },
    "step3": {
      "action": "Check for duplicates",
      "details": "Query database for eventBatchId"
    },
    "step4": {
      "action": "Return 200 OK immediately",
      "details": "Respond quickly to SCALAR"
    },
    "step5": {
      "action": "Queue events for processing",
      "details": "Add to message queue or background job"
    },
    "step6": {
      "action": "Process events asynchronously",
      "details": "Parse, validate, and store events"
    },
    "step7": {
      "action": "Handle errors gracefully",
      "details": "Log failures, retry if needed"
    }
  }
}