Export nested notion databases to GitHub repo using typescript

handle-notion-database.md

Hey 👋 This is the function I've created for exporting specific notion database to GitHub Repo in my telegram bot (full code) The function supports nested databases.

Database example.

ctx is used for telegram bot you can ignore it.

const handleDatabases = async (
  databaseId: string,
  pagesToPublish: any,
  parentSlug = ""
) => {
  return new Promise(async (resolve, reject) => {
    try {
      const { results } = await notion.databases.query({
        database_id: databaseId,
      });
      const pages = results.filter((res) => res.object === "page");
      pages.forEach(async (page: any) => {
        if (page?.properties?.Slug?.rich_text?.[0]?.plain_text) {
          pagesToPublish[page.properties.Slug.rich_text[0].plain_text] = {
            slug: page.properties.Slug.rich_text[0].plain_text,
            isPublish: page.properties?.Published?.checkbox || false,
            path: `${parentSlug || ""}${
              page.properties.Slug.rich_text[0].plain_text
            }`,
            page,
          };
        } else {
          // return ctx.reply("Please add a slug to the page");
          console.error("Please add a slug to the page");
        }
      });

      for await (let page of Object.values(pagesToPublish)) {
        const { slug, page: pageInfo } = page as any;
        const mdblocks = await n2m.pageToMarkdown(pageInfo.id);
        const finalMdBlocks = [];
        mdblocks?.forEach(async (block: any, index) => {
          if (index === mdblocks?.length - 1) {
            return;
          }
          if (block.type === "child_database") {
            const databaseId = block.parent.split("(").pop().split(")")[0];
            pagesToPublish[slug].children = {
              databaseId,
              slug,
              parentSlug: `${parentSlug || ""}${slug}`,
            };
          } else {
            finalMdBlocks.push(block);
          }
        });

        pagesToPublish[slug].mdBlocks = finalMdBlocks;
      }

      for await (let page of Object.keys(pagesToPublish)) {
        const { children, slug } = pagesToPublish[page] as any;
        if (children?.databaseId) {
          pagesToPublish[slug].childs = await handleDatabases(
            children.databaseId,
            {},
            `${children.parentSlug}`
          );
        }
      }

      console.log(util.inspect(pagesToPublish, false, null, true));
      return resolve(pagesToPublish);
    } catch (error) {
      return reject(error.message);
    }
  });
};


const pagesToPublish = await handleDatabases(
  process.env.NOTION_DATABASE_ID,
  {}
);