[feat] Initial commit with Notion configuration

config.ts

+export const NOTION_KEY = process.env.NOTION_KEY;

lib/notion.ts

+import { NOTION_KEY } from "../config";
+
+interface NotionAuth {}
+
+/**
+ * Returns authentication configuration for a Notion API `fetch` call.
+ * @returns
+ */
+export function notionCall(): Partial<RequestInit> {
+  return {
+    headers: {
+      "Notion-Version": "2022-06-28",
+      Authorization: `Bearer ${NOTION_KEY}`,
+    },
+  };
+}

pages/api/hello.ts → pages/api/getTopicList.ts

 // Next.js API route support: https://nextjs.org/docs/api-routes/introduction
-import type { NextApiRequest, NextApiResponse } from 'next'
+import type { NextApiRequest, NextApiResponse } from "next";
 
 type Data = {
-  name: string
-}
+  name: string;
+};
 
 export default function handler(
   req: NextApiRequest,
   res: NextApiResponse<Data>
 ) {
-  res.status(200).json({ name: 'John Doe' })
+  res.status(200).json({ name: "John Doe" });
 }