Only one post updates in React, when I do another post it does not shows

Question

When I post an item it shows up right away. But when I post another i have to update the page to see it. I think i have to put a res.json() somewhere in my backend to make it work.

Here's my backend code:

router.post("/new", async (req, res, next) => {

const {
  title,
  description,
  imageUrl,
  genre,
  releaseYear
} = req.body;

const game = {
  title,
  description,
  imageUrl,
  genre,
  urlSlug: generateUrlSlug(title),
  releaseYear,
};
const db = req.app.locals.db;

if(!game) {
  // res.status(400).send();
}
else {
  await saveGame(game, db);  
  res.json(game)  
}

});

async function saveGame(game, db, res) {

const sql = `
  INSERT INTO game (
    title,
    description,
    imageurl,
    genre,
    urlslug,
    releaseyear
  ) VALUES ($1, $2, $3, $4, $5, $6)
`;

await db.query(sql, [
    game.title,
    game.description,
    game.imageUrl,
    game.genre,
    game.urlSlug,
    game.releaseYear

]);

}

and frontend

const [games, setGames] = useState([]);

useEffect(() => {
  getGames();
}, [])

const getGames = () => {
  fetch('http://localhost:5000/api/admin/games')
  .then((result) => {
    result.json().then((resp) => {
      setGames(resp)
    })
  })
}