update pay function

boilerplate-chakra-pro-main/app/essayAPI.ts

@@ -0,0 +1,29 @@
+import { EssayBody } from '@/types/types';
+import { OpenAIStream } from '@/utils/streams/essayStream';
+
+export const runtime = 'edge';
+
+const handler = async (req: Request): Promise<Response> => {
+  try {
+    const {
+      topic,
+      words,
+      essayType,
+      model,
+      apiKey
+    } = (await req.json()) as EssayBody;
+
+    if (!apiKey) {
+      return new Response('API key not found', { status: 500 });
+    }
+
+    const stream = await OpenAIStream(topic, essayType, words, model, apiKey);
+
+    return new Response(stream);
+  } catch (error) {
+    console.error(error);
+    return new Response('Error', { status: 500 });
+  }
+};
+
+export default handler;