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const express = require('express')

const isDevelopment = process.env.NODE_ENV === 'development'

// Catch unhandled promise rejections and passing them to Express's error handler

// https://medium.com/@Abazhenov/using-async-await-in-express-with-node-8-b8af872c0016

const asyncMiddleware = fn =>

(req, res, next) => {

Promise.resolve(fn(req, res, next)).catch(next)

}

module.exports = function (app) {

// Don't use the proxy's IP, use the requester's for rate limiting

// See https://expressjs.com/en/guide/behind-proxies.html

app.set('trust proxy', 1)

app.use(require('morgan')('dev', { skip: (req, res) => !isDevelopment }))

app.use(require('./rate-limit'))

if (isDevelopment) app.use(require('./webpack'))

app.use(require('./redirects/external'))

app.use(require('./redirects/help-to-docs'))

app.use(require('./set-fastly-cache-headers'))

app.use(require('./handle-invalid-paths'))

app.use(require('./loaderio-verification'))

app.use(require('./cors'))

app.use(require('./csp'))

app.use(require('helmet')())

app.use(require('./req-utils'))

app.use(require('./robots'))

app.use(require('./cookie-parser'))

app.use(require('./csrf'))

app.use(require('compression')())

app.use(require('connect-slashes')(false))

app.use('/dist', express.static('dist'))

app.use(express.json())

app.use('/events', require('./events'))

app.use(require('./categories-for-support-team'))

app.use(require('./enterprise-data-endpoint'))

app.use(require('./detect-language'))

app.use(asyncMiddleware(require('./context')))

app.use('/csrf', require('./csrf-route'))

app.use(require('./early-access-paths'))

app.use(require('./early-access-proxy'))

app.use(require('./find-page'))

app.use(require('./notices'))

app.use(require('./archived-enterprise-versions'))

app.use(require('./archived-enterprise-versions-assets'))

app.use('/assets', express.static('assets'))

app.use('/public', express.static('data/graphql'))

app.use(require('./redirects/language-code-redirects'))

// redirects need to be handled before the contextualizers

app.use(require('./redirects/handle-redirects'))

app.use(require('./contextualizers/graphql'))

app.use(require('./contextualizers/rest'))

app.use(require('./contextualizers/webhooks'))

app.use(require('./disable-caching-on-safari'))

app.get('/_500', asyncMiddleware(require('./trigger-error')))

app.use(require('./breadcrumbs'))

app.use(require('./featured-links'))

app.get('/*', asyncMiddleware(require('./render-page')))

app.use(require('./handle-errors'))

}