diff --git a/services/notifications/app/js/HealthCheckController.js b/services/notifications/app/js/HealthCheckController.js
index 57b24892b1..df14b9a496 100644
--- a/services/notifications/app/js/HealthCheckController.js
+++ b/services/notifications/app/js/HealthCheckController.js
@@ -11,79 +11,112 @@
  * DS207: Consider shorter variations of null checks
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
-const { ObjectId } = require("mongojs");
-const request = require("request");
-const async = require("async");
-const _ = require("underscore");
-const settings = require("settings-sharelatex");
-const { port } = settings.internal.notifications;
-const logger = require("logger-sharelatex");
+const { ObjectId } = require('mongojs')
+const request = require('request')
+const async = require('async')
+const _ = require('underscore')
+const settings = require('settings-sharelatex')
+const { port } = settings.internal.notifications
+const logger = require('logger-sharelatex')
 
-const mongojs = require('mongojs');
-const Settings = require('settings-sharelatex');
-const db = mongojs(Settings.mongo != null ? Settings.mongo.url : undefined, ['notifications']);
+const mongojs = require('mongojs')
+const Settings = require('settings-sharelatex')
+const db = mongojs(Settings.mongo != null ? Settings.mongo.url : undefined, [
+  'notifications'
+])
 
-module.exports = { 
-	check(callback){
-		const user_id = ObjectId();
-		const cleanupNotifications = callback=> db.notifications.remove({user_id}, callback);
+module.exports = {
+  check(callback) {
+    const user_id = ObjectId()
+    const cleanupNotifications = callback =>
+      db.notifications.remove({ user_id }, callback)
 
-		let notification_key = `smoke-test-notification-${ObjectId()}`;
-		const getOpts = endPath=> ({url:`http://localhost:${port}/user/${user_id}${endPath}`, timeout:5000});
-		logger.log({user_id, opts:getOpts(), key:notification_key, user_id}, "Health Check: running");
-		const jobs = [
-			function(cb){
-				const opts = getOpts("/");
-				opts.json = {key: notification_key, messageOpts:'', templateKey:'f4g5', user_id};
-				return request.post(opts, cb);
-			},
-			function(cb){
-				const opts = getOpts("/");
-				opts.json = true;
-				return request.get(opts, function(err, res, body){
-					if (err != null) {
-						logger.err({err}, "Health Check: error getting notification");
-						return callback(err);
-					} else if (res.statusCode !== 200) {
-						const e = `status code not 200 ${res.statusCode}`;
-						logger.err({err}, e);
-						return cb(e);
-					}
-					const hasNotification = _.some(body, notification=> (notification.key === notification_key) && (notification.user_id === user_id.toString()));
-					if (hasNotification) {
-						return cb(null, body);
-					} else {
-						logger.err({body, notification_key}, "Health Check: notification not in response");
-						return cb("notification not found in response");
-					}
-				});
-			}
-		];
-		return async.series(jobs, function(err, body){
-			if (err != null) {
-				logger.err({err}, "Health Check: error running health check");
-				return cleanupNotifications(() => callback(err));
-			} else {
-				const notification_id = body[1][0]._id;
-				notification_key = body[1][0].key;
-				let opts = getOpts(`/notification/${notification_id}`);
-				logger.log({notification_id, notification_key}, "Health Check: doing cleanup");
-				return request.del(opts, function(err, res, body){
-					if (err != null) {
-						logger.err(err, opts, "Health Check: error cleaning up notification");
-						return callback(err);
-					}
-					opts = getOpts("");
-					opts.json = {key: notification_key};
-					return request.del(opts, function(err, res, body){
-						if (err != null) {
-							logger.err(err, opts, "Health Check: error cleaning up notification");
-							return callback(err);
-						}
-						return cleanupNotifications(callback);
-					});
-				});
-			}
-		});
-	}
-};
+    let notification_key = `smoke-test-notification-${ObjectId()}`
+    const getOpts = endPath => ({
+      url: `http://localhost:${port}/user/${user_id}${endPath}`,
+      timeout: 5000
+    })
+    logger.log(
+      { user_id, opts: getOpts(), key: notification_key, user_id },
+      'Health Check: running'
+    )
+    const jobs = [
+      function(cb) {
+        const opts = getOpts('/')
+        opts.json = {
+          key: notification_key,
+          messageOpts: '',
+          templateKey: 'f4g5',
+          user_id
+        }
+        return request.post(opts, cb)
+      },
+      function(cb) {
+        const opts = getOpts('/')
+        opts.json = true
+        return request.get(opts, function(err, res, body) {
+          if (err != null) {
+            logger.err({ err }, 'Health Check: error getting notification')
+            return callback(err)
+          } else if (res.statusCode !== 200) {
+            const e = `status code not 200 ${res.statusCode}`
+            logger.err({ err }, e)
+            return cb(e)
+          }
+          const hasNotification = _.some(
+            body,
+            notification =>
+              notification.key === notification_key &&
+              notification.user_id === user_id.toString()
+          )
+          if (hasNotification) {
+            return cb(null, body)
+          } else {
+            logger.err(
+              { body, notification_key },
+              'Health Check: notification not in response'
+            )
+            return cb('notification not found in response')
+          }
+        })
+      }
+    ]
+    return async.series(jobs, function(err, body) {
+      if (err != null) {
+        logger.err({ err }, 'Health Check: error running health check')
+        return cleanupNotifications(() => callback(err))
+      } else {
+        const notification_id = body[1][0]._id
+        notification_key = body[1][0].key
+        let opts = getOpts(`/notification/${notification_id}`)
+        logger.log(
+          { notification_id, notification_key },
+          'Health Check: doing cleanup'
+        )
+        return request.del(opts, function(err, res, body) {
+          if (err != null) {
+            logger.err(
+              err,
+              opts,
+              'Health Check: error cleaning up notification'
+            )
+            return callback(err)
+          }
+          opts = getOpts('')
+          opts.json = { key: notification_key }
+          return request.del(opts, function(err, res, body) {
+            if (err != null) {
+              logger.err(
+                err,
+                opts,
+                'Health Check: error cleaning up notification'
+              )
+              return callback(err)
+            }
+            return cleanupNotifications(callback)
+          })
+        })
+      }
+    })
+  }
+}
diff --git a/services/notifications/app/js/Notifications.js b/services/notifications/app/js/Notifications.js
index f1edf123c9..ec4007e50f 100644
--- a/services/notifications/app/js/Notifications.js
+++ b/services/notifications/app/js/Notifications.js
@@ -11,104 +11,120 @@
  * DS207: Consider shorter variations of null checks
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
-let Notifications;
-const Settings = require('settings-sharelatex');
-const logger = require('logger-sharelatex');
-const mongojs = require('mongojs');
-const db = mongojs(Settings.mongo != null ? Settings.mongo.url : undefined, ['notifications']);
-const { ObjectId } = require("mongojs");
-const metrics = require('metrics-sharelatex');
+let Notifications
+const Settings = require('settings-sharelatex')
+const logger = require('logger-sharelatex')
+const mongojs = require('mongojs')
+const db = mongojs(Settings.mongo != null ? Settings.mongo.url : undefined, [
+  'notifications'
+])
+const { ObjectId } = require('mongojs')
+const metrics = require('metrics-sharelatex')
 
-module.exports = (Notifications = {
+module.exports = Notifications = {
+  getUserNotifications(user_id, callback) {
+    if (callback == null) {
+      callback = function(err, notifications) {}
+    }
+    const query = {
+      user_id: ObjectId(user_id),
+      templateKey: { $exists: true }
+    }
+    return db.notifications.find(query, (err, notifications) =>
+      callback(err, notifications)
+    )
+  },
 
-	getUserNotifications(user_id, callback){
-		if (callback == null) { callback = function(err, notifications){}; }
-		const query = {
-			user_id: ObjectId(user_id),
-			templateKey: {"$exists":true}
-		};
-		return db.notifications.find(query, (err, notifications)=> callback(err, notifications));
-	},
+  _countExistingNotifications(user_id, notification, callback) {
+    if (callback == null) {
+      callback = function(err, count) {}
+    }
+    const query = {
+      user_id: ObjectId(user_id),
+      key: notification.key
+    }
+    return db.notifications.count(query, function(err, count) {
+      if (err != null) {
+        return callback(err)
+      }
+      return callback(null, count)
+    })
+  },
 
+  addNotification(user_id, notification, callback) {
+    return this._countExistingNotifications(user_id, notification, function(
+      err,
+      count
+    ) {
+      if (err != null) {
+        return callback(err)
+      }
+      if (count !== 0 && !notification.forceCreate) {
+        return callback()
+      }
+      const doc = {
+        user_id: ObjectId(user_id),
+        key: notification.key,
+        messageOpts: notification.messageOpts,
+        templateKey: notification.templateKey
+      }
+      // TTL index on the optional `expires` field, which should arrive as an iso date-string, corresponding to
+      // a datetime in the future when the document should be automatically removed.
+      // in Mongo, TTL indexes only work on date fields, and ignore the document when that field is missing
+      // see `README.md` for instruction on creating TTL index
+      if (notification.expires != null) {
+        try {
+          doc.expires = new Date(notification.expires)
+          const _testValue = doc.expires.toISOString()
+        } catch (error) {
+          err = error
+          logger.error(
+            { user_id, expires: notification.expires },
+            'error converting `expires` field to Date'
+          )
+          return callback(err)
+        }
+      }
+      return db.notifications.update(
+        { user_id: doc.user_id, key: notification.key },
+        doc,
+        { upsert: true },
+        callback
+      )
+    })
+  },
 
-	_countExistingNotifications(user_id, notification, callback){
-		if (callback == null) { callback = function(err, count){}; }
-		const query = {
-			user_id: ObjectId(user_id),
-			key: notification.key
-		};
-		return db.notifications.count(query, function(err, count){
-			if (err != null) { return callback(err); }
-			return callback(null, count);
-		});
-	},
+  removeNotificationId(user_id, notification_id, callback) {
+    const searchOps = {
+      user_id: ObjectId(user_id),
+      _id: ObjectId(notification_id)
+    }
+    const updateOperation = { $unset: { templateKey: true, messageOpts: true } }
+    return db.notifications.update(searchOps, updateOperation, callback)
+  },
 
-	addNotification(user_id, notification, callback){
-		return this._countExistingNotifications(user_id, notification, function(err, count){
-			if (err != null) { return callback(err); }
-			if ((count !== 0) && !notification.forceCreate) { return callback(); }
-			const doc = {
-				user_id: ObjectId(user_id),
-				key: notification.key,
-				messageOpts: notification.messageOpts,
-				templateKey: notification.templateKey
-			};
-			// TTL index on the optional `expires` field, which should arrive as an iso date-string, corresponding to
-			// a datetime in the future when the document should be automatically removed.
-			// in Mongo, TTL indexes only work on date fields, and ignore the document when that field is missing
-			// see `README.md` for instruction on creating TTL index
-			if (notification.expires != null) {
-				try {
-					doc.expires =  new Date(notification.expires);
-					const _testValue = doc.expires.toISOString();
-				} catch (error) {
-					err = error;
-					logger.error({user_id, expires: notification.expires}, "error converting `expires` field to Date");
-					return callback(err);
-				}
-			}
-			return db.notifications.update({user_id: doc.user_id, key: notification.key}, doc, {upsert: true}, callback);
-		});
-	},
+  removeNotificationKey(user_id, notification_key, callback) {
+    const searchOps = {
+      user_id: ObjectId(user_id),
+      key: notification_key
+    }
+    const updateOperation = { $unset: { templateKey: true } }
+    return db.notifications.update(searchOps, updateOperation, callback)
+  },
 
-	removeNotificationId(user_id, notification_id, callback){
-		const searchOps = {
-			user_id:ObjectId(user_id),
-			_id:ObjectId(notification_id)
-		};
-		const updateOperation =
-			{"$unset": {templateKey:true, messageOpts: true}};
-		return db.notifications.update(searchOps, updateOperation, callback);
-	},
+  removeNotificationByKeyOnly(notification_key, callback) {
+    const searchOps = { key: notification_key }
+    const updateOperation = { $unset: { templateKey: true } }
+    return db.notifications.update(searchOps, updateOperation, callback)
+  },
 
-	removeNotificationKey(user_id, notification_key, callback){
-		const searchOps = {
-			user_id:ObjectId(user_id),
-			key: notification_key
-		};
-		const updateOperation =
-			{"$unset": {templateKey:true}};
-		return db.notifications.update(searchOps, updateOperation, callback);
-	},
+  // hard delete of doc, rather than removing the templateKey
+  deleteNotificationByKeyOnly(notification_key, callback) {
+    const searchOps = { key: notification_key }
+    return db.notifications.remove(searchOps, { justOne: true }, callback)
+  }
+}
 
-	removeNotificationByKeyOnly(notification_key, callback){
-		const searchOps =
-			{key: notification_key};
-		const updateOperation =
-			{"$unset": {templateKey:true}};
-		return db.notifications.update(searchOps, updateOperation, callback);
-	},
-
-	// hard delete of doc, rather than removing the templateKey
-	deleteNotificationByKeyOnly(notification_key, callback){
-		const searchOps =
-			{key: notification_key};
-		return db.notifications.remove(searchOps, {justOne: true}, callback);
-	}
-});
-
-
-[
-	'getUserNotifications',
-	'addNotification'
-].map(method => metrics.timeAsyncMethod(Notifications, method, 'mongo.Notifications', logger));
+;['getUserNotifications', 'addNotification'].map(method =>
+  metrics.timeAsyncMethod(Notifications, method, 'mongo.Notifications', logger)
+)
diff --git a/services/notifications/app/js/NotificationsController.js b/services/notifications/app/js/NotificationsController.js
index 82201ba645..27587da25d 100644
--- a/services/notifications/app/js/NotificationsController.js
+++ b/services/notifications/app/js/NotificationsController.js
@@ -10,46 +10,77 @@
  * DS207: Consider shorter variations of null checks
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
-const Notifications = require("./Notifications");
-const logger = require("logger-sharelatex");
-const metrics = require('metrics-sharelatex');
+const Notifications = require('./Notifications')
+const logger = require('logger-sharelatex')
+const metrics = require('metrics-sharelatex')
 
 module.exports = {
+  getUserNotifications(req, res) {
+    logger.log(
+      { user_id: req.params.user_id },
+      'getting user unread notifications'
+    )
+    metrics.inc('getUserNotifications')
+    return Notifications.getUserNotifications(
+      req.params.user_id,
+      (err, notifications) => res.json(notifications)
+    )
+  },
 
-	getUserNotifications(req, res){
-		logger.log({user_id: req.params.user_id}, "getting user unread notifications");
-		metrics.inc("getUserNotifications");
-		return Notifications.getUserNotifications(req.params.user_id, (err, notifications)=> res.json(notifications));
-	},
+  addNotification(req, res) {
+    logger.log(
+      { user_id: req.params.user_id, notification: req.body },
+      'adding notification'
+    )
+    metrics.inc('addNotification')
+    return Notifications.addNotification(req.params.user_id, req.body, function(
+      err,
+      notifications
+    ) {
+      if (err != null) {
+        return res.send(500)
+      } else {
+        return res.send()
+      }
+    })
+  },
 
-	addNotification(req, res){
-		logger.log({user_id: req.params.user_id, notification:req.body}, "adding notification");
-		metrics.inc("addNotification");
-		return Notifications.addNotification(req.params.user_id, req.body, function(err, notifications){
-			if (err != null) {
-				return res.send(500);
-			} else {
-				return res.send();
-			}
-		});
-	},
+  removeNotificationId(req, res) {
+    logger.log(
+      {
+        user_id: req.params.user_id,
+        notification_id: req.params.notification_id
+      },
+      'mark id notification as read'
+    )
+    metrics.inc('removeNotificationId')
+    return Notifications.removeNotificationId(
+      req.params.user_id,
+      req.params.notification_id,
+      (err, notifications) => res.send()
+    )
+  },
 
-	removeNotificationId(req, res){
-		logger.log({user_id: req.params.user_id, notification_id: req.params.notification_id}, "mark id notification as read");
-		metrics.inc("removeNotificationId");
-		return Notifications.removeNotificationId(req.params.user_id, req.params.notification_id, (err, notifications)=> res.send());
-	},
+  removeNotificationKey(req, res) {
+    logger.log(
+      { user_id: req.params.user_id, notification_key: req.body.key },
+      'mark key notification as read'
+    )
+    metrics.inc('removeNotificationKey')
+    return Notifications.removeNotificationKey(
+      req.params.user_id,
+      req.body.key,
+      (err, notifications) => res.send()
+    )
+  },
 
-	removeNotificationKey(req, res){
-		logger.log({user_id: req.params.user_id, notification_key: req.body.key}, "mark key notification as read");
-		metrics.inc("removeNotificationKey");
-		return Notifications.removeNotificationKey(req.params.user_id, req.body.key, (err, notifications)=> res.send());
-	},
-
-	removeNotificationByKeyOnly(req, res){
-		const notification_key = req.params.key;
-		logger.log({notification_key}, "mark notification as read by key only");
-		metrics.inc("removeNotificationKey");
-		return Notifications.removeNotificationByKeyOnly(notification_key, (err, notifications)=> res.send());
-	}
-};
+  removeNotificationByKeyOnly(req, res) {
+    const notification_key = req.params.key
+    logger.log({ notification_key }, 'mark notification as read by key only')
+    metrics.inc('removeNotificationKey')
+    return Notifications.removeNotificationByKeyOnly(
+      notification_key,
+      (err, notifications) => res.send()
+    )
+  }
+}