spotify api error parsing json

//mandatory to parse to JSON before posting the request

const getPlaylistId = async (playlistName) => {
  const userId = await getUserId();
  const body = JSON.stringify({
    name: playlistName,
  });

  const responseCreatedPlaylist = await fetch(
    `https://cors-anywhere.herokuapp.com/${baseUrl}/users/${userId}/playlists`,
    {
      method: "POST",
      headers: { 
        "Authorization": `Bearer ${accessToken}`, 
		"Content-Type": 
		"application/json" 
		},
      body,
    }
  );
  const { id } = await responseCreatedPlaylist.json();

  return id;
};