app use not taking err req res next) code example
Example 1: express error handling
app.use(function (err, req, res, next) {
console.error(err.stack)
res.status(500).send('Something broke!')
})
Example 2: express error middleware
function errorHandler (err, req, res, next) {
if (res.headersSent) {
return next(err)
}
res.status(500)
res.render('error', { error: err })
}