fix(tracer): include request pathname in trace data

Author: dreamorosi

Diff for: packages/tracer/src/provider/ProviderService.ts

@@ -28,7 +28,7 @@ import { addUserAgentMiddleware } from '@aws-lambda-powertools/commons';
 import type { DiagnosticsChannel } from 'undici-types';
 import {
   findHeaderAndDecode,
-  getOriginURL,
+  getRequestURL,
   isHttpSubsegment,
 } from './utilities.js';
 
@@ -107,16 +107,18 @@ class ProviderService implements ProviderServiceInterface {
       const { request } = message as DiagnosticsChannel.RequestCreateMessage;
 
       const parentSubsegment = this.getSegment();
-      if (parentSubsegment && request.origin) {
-        const origin = getOriginURL(request.origin);
+      const requestURL = getRequestURL(request);
+      if (parentSubsegment && requestURL) {
         const method = request.method;
 
-        const subsegment = parentSubsegment.addNewSubsegment(origin.hostname);
+        const subsegment = parentSubsegment.addNewSubsegment(
+          requestURL.hostname
+        );
         subsegment.addAttribute('namespace', 'remote');
 
         (subsegment as HttpSubsegment).http = {
           request: {
-            url: origin.hostname,
+            url: `${requestURL.protocol}//${requestURL.hostname}${requestURL.pathname}`,
             method,
           },
         };

Diff for: packages/tracer/src/provider/utilities.ts

@@ -1,5 +1,6 @@
 import { URL } from 'node:url';
 import type { Segment, Subsegment } from 'aws-xray-sdk-core';
+import type { DiagnosticsChannel } from 'undici-types';
 import type { HttpSubsegment } from '../types/ProviderService.js';
 
 const decoder = new TextDecoder();
@@ -52,12 +53,24 @@ const isHttpSubsegment = (
 };
 
 /**
- * Convert the origin url to a URL object when it is a string
+ * Convert the origin url to a URL object when it is a string and append the path if provided
  *
- * @param origin The origin url
+ * @param origin The request object containing the origin url and path
  */
-const getOriginURL = (origin: string | URL): URL => {
-  return origin instanceof URL ? origin : new URL(origin);
+const getRequestURL = (
+  request: DiagnosticsChannel.Request
+): URL | undefined => {
+  if (typeof request.origin === 'string') {
+    return new URL(`${request.origin}${request.path || ''}`);
+  }
+
+  if (request.origin instanceof URL) {
+    request.origin.pathname = request.path || '';
+
+    return request.origin;
+  }
+
+  return undefined;
 };
 
-export { findHeaderAndDecode, isHttpSubsegment, getOriginURL };
+export { findHeaderAndDecode, isHttpSubsegment, getRequestURL };