createpost.ts

/** rest of code above **/

server.post("/create/draft", async (req, res) => {
  const { title, authorId } = req.body;
  // Use the createPost API from prisma client
  try {
    const draftPost = await prisma.createPost({
      title,
      author: {
        connect: {
          id: authorId
        }
      }
    });

    return res.send(draftPost).status(200);
  } catch (e) {
    console.error(e);

    return res.sendStatus(500);
  }
});

/** rest of code below **/