58 lines
1.3 KiB
JavaScript
58 lines
1.3 KiB
JavaScript
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'use strict'
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const express = require('express')
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const hsts = require('hsts')
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const morgan = require('morgan')
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const shorthash = require('shorthash').unique
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const corser = require('corser')
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const compression = require('compression')
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const nocache = require('nocache')
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const pkg = require('./package.json')
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const departures = require('./lib/departures')
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const journeys = require('./lib/journeys')
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const api = express()
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module.exports = api
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api.use(hsts({maxAge: 24 * 60 * 60 * 1000}))
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morgan.token('id', (req, res) => req.headers['x-identifier'] || shorthash(req.ip))
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api.use(morgan(':date[iso] :id :method :url :status :response-time ms'))
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const allowed = corser.simpleRequestHeaders.concat(['User-Agent', 'X-Identifier'])
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api.use(corser.create({requestHeaders: allowed})) // CORS
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api.use(compression())
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api.use((req, res, next) => {
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if (!res.headersSent)
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res.setHeader('X-Powered-By', pkg.name + ' ' + pkg.homepage)
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next()
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})
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const noCache = nocache()
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api.get('/stations/:id/departures', noCache, departures)
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api.get('/journeys', noCache, journeys)
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api.use((err, req, res, next) => {
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if (process.env.NODE_ENV === 'dev') console.error(err)
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if (res.headersSent) return next(err)
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let msg = err.message
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let code = err.statusCode
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if (err.isHafasError) {
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msg = 'DB error: ' + msg
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code = 502
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}
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res.status(code).json({error: true, msg})
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next()
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})
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