this was in my git workspace - i don’t remember what this is

src/api/chat/route.ts

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+import { OpenAIStream, StreamingTextResponse } from "ai";
+import OpenAI from "openai";
+
+const openai = new OpenAI({
+  apiKey: process.env.OPENAI_API_KEY,
+});
+
+export const runtime = "edge";
+
+export async function POST(req: Request) {
+  const { messages, copilotkit_manually_passed_function_descriptions } =
+    await req.json();
+
+  const response = await openai.chat.completions.create({
+    model: "gpt-4",
+    stream: true,
+    messages,
+    functions: copilotkit_manually_passed_function_descriptions,
+  });
+
+  const stream = OpenAIStream(response, {
+    experimental_onFunctionCall: async (
+      { name, arguments: args },
+      createFunctionCallMessages
+    ) => {
+      return undefined; // returning undefined to avoid sending any messages to the client when a function is called. Temporary, bc currently vercel ai sdk does not support returning both text and function calls -- although the API does support it.
+    },
+  });
+
+  return new StreamingTextResponse(stream);
+}

src/api/copilotkit_chatlike/route.ts

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+import { OpenAIStream, StreamingTextResponse } from "ai";
+import OpenAI from "openai";
+import { CompletionCreateParamsStreaming } from "openai/resources/chat/completions";
+
+const openai = new OpenAI({
+  apiKey: process.env.OPENAI_API_KEY,
+});
+
+export const runtime = "edge";
+
+export async function POST(req: Request): Promise<Response> {
+  const forwardedProps = await req.json();
+
+  const response = await openai.chat.completions.create({
+    model: "gpt-4",
+    ...forwardedProps,
+    stream: true,
+  } as CompletionCreateParamsStreaming);
+
+  const stream = OpenAIStream(response);
+  return new StreamingTextResponse(stream);
+}

src/components/CopilotTextareaShowcase/CopilotTextareaShowcase.tsx

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+import React from "react";
+import {
+  CopilotTextarea,
+  HTMLCopilotTextAreaElement,
+} from "@copilotkit/react-textarea";
+
+const CopilotTextareaShowcase: React.FC = () => {
+  const handleChange = (
+    event: React.ChangeEvent<HTMLCopilotTextAreaElement>
+  ): void => {
+    console.log(event.target.value);
+  };
+
+  return (
+    <CopilotTextarea
+      value=""
+      onChange={handleChange}
+      autosuggestionsConfig={{
+        textareaPurpose: "comment",
+      }}
+    />
+  );
+};
+export default CopilotTextareaShowcase;