use async/await without try/catch

try-catch-wrapper.js

const request = async (url) => {
  const res = await fetch(url);
  if (!res.ok) throw new Error(res.statusText);

  return res.json()
}

// 1. HOF
// HOF to add try/catch to async function
const catch = fn => async (...params) => {
  try {
    return [null, await fn(...params)];
  } catch (err) {
    return [err];
  }
}

// now can use await without try/catch
const get = catch(request);

const [err, data] = await get('https://...');
if (err) console.error(data); // handle error

// 2. Wrap promise
const to = async (promise) => {
  try {
    return [null, await promise];
  } catch(err) {
    return [err];
  }
};

const [err, data] = await to(request('https://...'));