express custom error code example

Example 1: how to handle all error of all router in express

const handleErrorAsync = func => (req, res, next) => {
    func(req, res, next).catch((error) => next(error));
};

Example 2: express error handling

app.use(function (err, req, res, next) {
  console.error(err.stack)
  res.status(500).send('Something broke!')
})

Example 3: express generator error handling

app.get('/', function (req, res) {
  throw new Error('BROKEN') // Express will catch this on its own.
})

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Javascript Example

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