overleaf/services/notifications/app.js

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// Metrics must be initialized before importing anything else
require('@overleaf/metrics/initialize')
const metrics = require('@overleaf/metrics')
const Settings = require('@overleaf/settings')
const logger = require('@overleaf/logger')
logger.initialize('notifications-sharelatex')
const express = require('express')
const app = express()
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const methodOverride = require('method-override')
const bodyParser = require('body-parser')
const { mongoClient } = require('./app/js/mongodb')
const controller = require('./app/js/NotificationsController')
metrics.memory.monitor(logger)
metrics.open_sockets.monitor()
const HealthCheckController = require('./app/js/HealthCheckController')
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app.use(methodOverride())
app.use(bodyParser())
app.use(metrics.http.monitor(logger))
metrics.injectMetricsRoute(app)
app.post('/user/:user_id', controller.addNotification)
app.get('/user/:user_id', controller.getUserNotifications)
app.delete(
'/user/:user_id/notification/:notification_id',
controller.removeNotificationId
)
app.delete('/user/:user_id', controller.removeNotificationKey)
app.delete('/key/:key', controller.removeNotificationByKeyOnly)
app.get('/key/:key/count', controller.countNotificationsByKeyOnly)
app.delete('/key/:key/bulk', controller.deleteUnreadNotificationsByKeyOnlyBulk)
app.get('/status', (req, res) => res.send('notifications sharelatex up'))
app.get('/health_check', (req, res) =>
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HealthCheckController.check(function (err) {
if (err) {
logger.err({ err }, 'error performing health check')
res.sendStatus(500)
} else {
res.sendStatus(200)
}
})
)
app.get('*', (req, res) => res.sendStatus(404))
const host = Settings.internal?.notifications?.host || 'localhost'
const port = Settings.internal?.notifications?.port || 3042
mongoClient
.connect()
.then(() => {
app.listen(port, host, () =>
logger.debug(`notifications starting up, listening on ${host}:${port}`)
)
})
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.catch(err => {
logger.fatal({ err }, 'Cannot connect to mongo. Exiting.')
process.exit(1)
})