version con express js que no funciona

supabase/functions/openai-webhook-responses/index.ts

@@ -0,0 +1,48 @@
+// Follow this setup guide to integrate the Deno language server with your editor:
+// https://deno.land/manual/getting_started/setup_your_environment
+// This enables autocomplete, go to definition, etc.
+
+// Setup type definitions for built-in Supabase Runtime APIs
+import "@supabase/functions-js/edge-runtime.d.ts";
+import express from "express";
+import OpenAI from "openai";
+
+const app = express();
+const client = new OpenAI({
+  webhookSecret: Deno.env.get("OPENAI_WEBHOOK_SECRET"),
+});
+
+app.use(express.text({ type: "application/json" }));
+
+app.post("/webhook", async (req: express.Request, res: express.Response) => {
+  try {
+    const event = await client.webhooks.unwrap(req.body, req.headers);
+
+    if (event.type === "response.completed") {
+      const response_id = event.data.id;
+      const response = await client.responses.retrieve(response_id);
+      const output_text = response.output
+        .filter((item) => item.type === "message")
+        .flatMap((item) => item.content)
+        .filter((contentItem) => contentItem.type === "output_text")
+        .map((contentItem) => contentItem.text)
+        .join("");
+
+      console.log("Response output:", output_text);
+    }
+    res.status(200).send();
+  } catch (error) {
+    if (error instanceof OpenAI.InvalidWebhookSignatureError) {
+      console.error("Invalid signature", error);
+      res.status(400).send("Invalid signature");
+    } else {
+      throw error;
+    }
+  }
+});
+
+Deno.serve(async (req) => {
+  console.log("Inicio de openai-webhook-responses");
+
+  return await app.handle(req);
+});