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carbon/api/server.js

70 lines
1.9 KiB
JavaScript

const express = require('express')
const cors = require('cors')
const compression = require('compression')
const morgan = require('morgan')
const bodyParser = require('body-parser')
const puppeteer = require('puppeteer')
const port = parseInt(process.env.PORT, 10) || 4000
const dev = process.env.NODE_ENV !== 'production'
process.on('SIGINT', process.exit)
if (!dev) {
const LOGS_ID = `${process.env.LOGS_SECRET_PREFIX}:${process.env.NOW_URL}`
require('now-logs')(LOGS_ID)
}
function wrap(handler) {
return (req, res) =>
handler(req, res).catch(err => {
// eslint-disable-next-line
console.log('ERR:', err)
res.status(400).end()
})
}
const puppeteerParams = dev
? {}
: {
executablePath: '/usr/bin/chromium-browser',
args: ['--no-sandbox', '--disable-setuid-sandbox']
}
puppeteer.launch(puppeteerParams).then(browser => {
// set up
const server = express()
const imageHandler = require('./handlers/image')(browser)
const unsplashHandler = require('./handlers/unsplash')
const oembedHandler = require('./handlers/oembed')
if (dev) {
server.use(morgan('tiny'))
}
server.use(
cors({
origin(origin, callback) {
return origin === 'https://carbon.now.sh' || !origin
? callback(null, true)
: callback(new Error('Not allowed by CORS'))
}
})
)
server.use(compression())
// api endpoints
server.post('/twitter', bodyParser.json({ limit: '5mb' }), require('./handlers/twitter'))
server.post('/image', bodyParser.json({ limit: '5mb' }), wrap(imageHandler))
server.get('/unsplash/random', wrap(unsplashHandler.randomImages))
server.get('/unsplash/download/:imageId', wrap(unsplashHandler.downloadImage))
server.all('/oembed', oembedHandler)
server.listen(port, '0.0.0.0', err => {
if (err) throw err
// eslint-disable-next-line
console.log(`> Ready on http://localhost:${port}`)
})
})