Supabase functions not recieving data

const buffer = await file.arrayBuffer();
console.log(buffer); //THE BUFFER IS CONSOLE.LOGGED CORRECTLY

client.functions.invoke('processEpisode', {
  body: {
    audioBuffer: buffer,
    episodeId: createdEpisode.data?.[0].id,
  },
});

const body = await req.json();
  console.log(body); //{ audioBuffer: {}, episodeId: 21 }
  const { audioBuffer, episodeId } = body;