From d052a1bead492d2cae1900d7ddbb13a60d47e740 Mon Sep 17 00:00:00 2001
From: Francesco Novy <francesco.novy@sentry.io>
Date: Mon, 7 Aug 2023 09:24:30 +0200
Subject: [PATCH] fix(fastify): Make sure consturctor patching works with esm

---
 .../src/instrumentation.ts                                  | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/plugins/node/opentelemetry-instrumentation-fastify/src/instrumentation.ts b/plugins/node/opentelemetry-instrumentation-fastify/src/instrumentation.ts
index fcaf3114e6..f2f51e6885 100644
--- a/plugins/node/opentelemetry-instrumentation-fastify/src/instrumentation.ts
+++ b/plugins/node/opentelemetry-instrumentation-fastify/src/instrumentation.ts
@@ -198,13 +198,13 @@ export class FastifyInstrumentation extends InstrumentationBase {
   }
 
   private _patchConstructor(
-    original: () => FastifyInstance
-  ): () => FastifyInstance {
+    moduleExports: { fastify: () => FastifyInstance },
+    ): () => FastifyInstance {
     const instrumentation = this;
     this._diag.debug('Patching fastify constructor function');
 
     function fastify(this: FastifyInstance, ...args: any) {
-      const app: FastifyInstance = original.apply(this, args);
+      const app: FastifyInstance = moduleExports.fastify.apply(this, args);
       app.addHook('onRequest', instrumentation._hookOnRequest());
       app.addHook('preHandler', instrumentation._hookPreHandler());