How can I track fetch whether json response came or not?

Question

JavaScript

const request = await fetch(url, {
     method: 'POST'
  });

if (request.ok) {
  const response = await request.json();
} else {
   console.log('Ошибка сервера');
 }

As after the request.ok condition, I can check if I received a json response, because if the layout comes, then the application will simply fly away from me.

Answer 1

probably request.json()throw up with an error if not JSON was returned there.
Therefore, it is enough to wrap in try..catch:

let response;
try {
  response = await request.json();
} catch (err) {
  console.error(err);
  return;
}