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app.js
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app.js
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const express = require('express')
const path = require('path')
const multiply = require('./multiply')
const routes = require('./routes/index')
const app = express()
// view engine setup
app.set('views', path.join(__dirname, 'views'))
app.set('view engine', 'pug')
app.use(express.json())
app.use(express.urlencoded({ extended: false }))
app.use(express.static(path.join(__dirname, 'public')))
app.use(multiply({ by: 10 }))
app.use('/', routes)
// catch 404 and forward to error handler
app.use((req, res, next) => {
const err = new Error('Not Found')
err.status = 404
next(err)
})
// error handlers
// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
app.use((err, req, res, next) => {
res.status(err.status || 500)
res.render('error', {
message: err.message,
error: err,
})
})
}
// production error handler
// no stacktraces leaked to user
app.use((err, req, res, next) => {
res.status(err.status || 500)
res.render('error', {
message: err.message,
error: {},
})
})
module.exports = app