RenacerApi/pages/api/getTopicList.ts

// Next.js API route support: https://nextjs.org/docs/api-routes/introduction
import type { NextApiRequest, NextApiResponse } from "next";
import { DatabaseType, getDatabaseId, notion } from "../../lib/notion";

interface Topic {
  blockId: string;
  name: string;
}

interface Error {
  status: string;
}

function getTopicsInDatabase(notionResp: any): Topic[] {
  return notionResp.results.map((block: any) => ({
    blockId: block.id,
    name: block.properties.Name.title[0].plain_text,
  }));
}

export default async function handler(
  req: NextApiRequest,
  res: NextApiResponse<Topic[] | Error>
) {
  const {
    query: { type },
  } = req;
  const blockId = getDatabaseId(type as DatabaseType);
  if (!blockId) {
    res.status(404).json({ status: "Not found." });
  } else {
    const resp = await notion.databases.query({
      database_id: blockId,
      sorts: [
        {
          property: "Created",
          direction: "ascending",
        },
      ],
    });
    res.status(200).json(getTopicsInDatabase(resp));
  }
}