fix: trace Cloud SDK outbound requests (getter-only exports)

CHANGELOG.md

@@ -12,6 +12,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
 ### Fixed
 
+- Cloud SDK outbound requests are traced again (patch getter-only `@sap-cloud-sdk/http-client` exports via `Object.defineProperty`)
+
 ## Version 2.0.1 - 2026-07-03
 
 ### Fixed

lib/tracing/cloud_sdk.js

@@ -15,7 +15,10 @@ function _cloudSdkSpanName(destination, requestConfig) {
   return `${method}${path ? ' ' + path : ''}`
 }
 
-// REVISIT: unverified!
+// Instruments @sap-cloud-sdk/http-client's exports (the outbound path CAP uses by
+// default when the cloud sdk is installed) to emit a CLIENT span per remote call.
+// Note: cloud sdk v4 exposes executeHttpRequest(WithOrigin) as getter-only properties,
+// so a plain assignment silently fails -> we must use Object.defineProperty with a value.
 module.exports = () => {
   try {
     require.resolve('@sap-cloud-sdk/http-client')
@@ -25,26 +28,22 @@ module.exports = () => {
 
   const cloudSDK = require('@sap-cloud-sdk/http-client')
   const { executeHttpRequest: _execute, executeHttpRequestWithOrigin: _executeWithOrigin } = cloudSDK
-  cloudSDK.executeHttpRequest = wrap(_execute, {
+  const _executeHttpRequest = wrap(_execute, {
     wrapper: function executeHttpRequest(destination, requestConfig) {
-      return trace(
-        _cloudSdkSpanName(destination, requestConfig),
-        _execute,
-        this,
-        arguments,
-        { kind: SpanKind.CLIENT, outbound: destination.name }
-      )
+      return trace(_cloudSdkSpanName(destination, requestConfig), _execute, this, arguments, {
+        kind: SpanKind.CLIENT,
+        outbound: destination.name
+      })
     }
   })
-  cloudSDK.executeHttpRequestWithOrigin = wrap(_executeWithOrigin, {
+  Object.defineProperty(cloudSDK, 'executeHttpRequest', { value: _executeHttpRequest, writable: true, configurable: true })
+  const _executeHttpRequestWithOrigin = wrap(_executeWithOrigin, {
     wrapper: function executeHttpRequestWithOrigin(destination, requestConfig) {
-      return trace(
-        _cloudSdkSpanName(destination, requestConfig),
-        _executeWithOrigin,
-        this,
-        arguments,
-        { kind: SpanKind.CLIENT, outbound: destination.name }
-      )
+      return trace(_cloudSdkSpanName(destination, requestConfig), _executeWithOrigin, this, arguments, {
+        kind: SpanKind.CLIENT,
+        outbound: destination.name
+      })
     }
   })
+  Object.defineProperty(cloudSDK, 'executeHttpRequestWithOrigin', { value: _executeHttpRequestWithOrigin, writable: true, configurable: true })
 }