How to handle async errors?

controller1.js

const app = require('express')();

const getConvert = async (req, res, next) => {
  try {
    throw 'err';
    
  } catch (err) {
   next(err) 
  }
};

app.get('/', getConvert);
app.use((err, req, res, next) => {
  res.status(500).send('~~~');
});

app.listen(9000);

controller2.js

const app = require('express')();

const catchErr = fn => async (req, res, next) => {
  try {
    await fn(req, res, next);
  } catch (err) {
    next(err);
  }
};

const getConvert = async (req, res, next) => {
  throw 'err';
};

app.get('/', catchErr(getConvert));
app.use((err, req, res, next) => {
  res.status(500).send('~~~');
});

app.listen(9000);