overleaf/services/chat/app.js

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// Metrics must be initialized before importing anything else
import '@overleaf/metrics/initialize.js'
import logger from '@overleaf/logger'
import settings from '@overleaf/settings'
import { mongoClient } from './app/js/mongodb.js'
import { createServer } from './app/js/server.js'
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const port = settings.internal.chat.port
const host = settings.internal.chat.host
mongoClient
.connect()
.then(async () => {
const { server } = await createServer()
server.listen(port, host, function (err) {
if (err) {
logger.fatal({ err }, `Cannot bind to ${host}:${port}. Exiting.`)
process.exit(1)
}
logger.debug(`Chat starting up, listening on ${host}:${port}`)
})
})
.catch(err => {
logger.fatal({ err }, 'Cannot connect to mongo. Exiting.')
process.exit(1)
})