Merge pull request #54 from overleaf/jpa-wait-for-mongo

[misc] complete the connection setup before starting the http server

services/chat/app.js

@@ -8,6 +8,7 @@
 const logger = require('logger-sharelatex')
 const settings = require('settings-sharelatex')
 
+const mongodb = require('./app/js/mongodb')
 const Server = require('./app/js/server')
 
 if (!module.parent) {
@@ -22,12 +23,20 @@ if (!module.parent) {
       settings.internal != null ? settings.internal.chat : undefined,
       (x1) => x1.host
     ) || 'localhost'
-  Server.server.listen(port, host, function (error) {
-    if (error != null) {
-      throw error
-    }
-    return logger.info(`Chat starting up, listening on ${host}:${port}`)
-  })
+  mongodb.clientConnecting
+    .then(() => {
+      Server.server.listen(port, host, function (err) {
+        if (err) {
+          logger.fatal({ err }, `Cannot bind to ${host}:${port}. Exiting.`)
+          process.exit(1)
+        }
+        return logger.info(`Chat starting up, listening on ${host}:${port}`)
+      })
+    })
+    .catch((err) => {
+      logger.fatal({ err }, 'Cannot connect to mongo. Exiting.')
+      process.exit(1)
+    })
 }
 
 module.exports = Server.server

services/chat/app/js/Features/Messages/MessageHttpController.js

@@ -17,7 +17,7 @@ const metrics = require('metrics-sharelatex')
 const MessageManager = require('./MessageManager')
 const MessageFormatter = require('./MessageFormatter')
 const ThreadManager = require('../Threads/ThreadManager')
-const { ObjectId } = require('../../mongojs')
+const { ObjectId } = require('../../mongodb')
 
 module.exports = MessageHttpController = {
   DEFAULT_MESSAGE_LIMIT: 50,

services/chat/app/js/Features/Messages/MessageManager.js

@@ -13,13 +13,12 @@
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
 let MessageManager
-const mongojs = require('../../mongojs')
-const { db } = mongojs
-const { ObjectId } = mongojs
-const async = require('async')
+const { ObjectId, getCollection } = require('../../mongodb')
 const metrics = require('metrics-sharelatex')
 const logger = require('logger-sharelatex')
 
+const messagesCollectionPromise = getCollection('messages')
+
 module.exports = MessageManager = {
   createMessage(room_id, user_id, content, timestamp, callback) {
     if (callback == null) {
@@ -32,7 +31,15 @@ module.exports = MessageManager = {
       timestamp
     }
     newMessageOpts = this._ensureIdsAreObjectIds(newMessageOpts)
-    return db.messages.save(newMessageOpts, callback)
+    messagesCollectionPromise.then((messages) =>
+      messages.insertOne(newMessageOpts, function (error, confirmation) {
+        if (error) {
+          return callback(error)
+        }
+        newMessageOpts._id = confirmation.insertedId
+        callback(null, newMessageOpts)
+      })
+    )
   },
 
   getMessages(room_id, limit, before, callback) {
@@ -44,19 +51,25 @@ module.exports = MessageManager = {
       query.timestamp = { $lt: before }
     }
     query = this._ensureIdsAreObjectIds(query)
-    const cursor = db.messages.find(query).sort({ timestamp: -1 }).limit(limit)
-    return cursor.toArray(callback)
+    messagesCollectionPromise.then((messages) =>
+      messages
+        .find(query)
+        .sort({ timestamp: -1 })
+        .limit(limit)
+        .toArray(callback)
+    )
   },
 
   findAllMessagesInRooms(room_ids, callback) {
     if (callback == null) {
       callback = function (error, messages) {}
     }
-    return db.messages.find(
-      {
-        room_id: { $in: room_ids }
-      },
-      callback
+    messagesCollectionPromise.then((messages) =>
+      messages
+        .find({
+          room_id: { $in: room_ids }
+        })
+        .toArray(callback)
     )
   },
 
@@ -64,11 +77,13 @@ module.exports = MessageManager = {
     if (callback == null) {
       callback = function (error) {}
     }
-    return db.messages.remove(
-      {
-        room_id
-      },
-      callback
+    messagesCollectionPromise.then((messages) =>
+      messages.deleteMany(
+        {
+          room_id
+        },
+        callback
+      )
     )
   },
 
@@ -80,20 +95,17 @@ module.exports = MessageManager = {
       _id: message_id,
       room_id
     })
-    return db.messages.update(
-      query,
-      {
-        $set: {
-          content,
-          edited_at: timestamp
-        }
-      },
-      function (error) {
-        if (error != null) {
-          return callback(error)
-        }
-        return callback()
-      }
+    messagesCollectionPromise.then((messages) =>
+      messages.updateOne(
+        query,
+        {
+          $set: {
+            content,
+            edited_at: timestamp
+          }
+        },
+        callback
+      )
     )
   },
 
@@ -105,12 +117,9 @@ module.exports = MessageManager = {
       _id: message_id,
       room_id
     })
-    return db.messages.remove(query, function (error) {
-      if (error != null) {
-        return callback(error)
-      }
-      return callback()
-    })
+    messagesCollectionPromise.then((messages) =>
+      messages.deleteOne(query, callback)
+    )
   },
 
   _ensureIdsAreObjectIds(query) {

services/chat/app/js/Features/Threads/ThreadManager.js

@@ -12,12 +12,12 @@
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
 let ThreadManager
-const mongojs = require('../../mongojs')
-const { db } = mongojs
-const { ObjectId } = mongojs
+const { ObjectId, getCollection } = require('../../mongodb')
 const logger = require('logger-sharelatex')
 const metrics = require('metrics-sharelatex')
 
+const roomsCollectionPromise = getCollection('rooms')
+
 module.exports = ThreadManager = {
   GLOBAL_THREAD: 'GLOBAL',
 
@@ -50,38 +50,35 @@ module.exports = ThreadManager = {
       }
     }
 
-    return db.rooms.update(query, { $set: update }, { upsert: true }, function (
-      error
-    ) {
-      if (error != null) {
-        return callback(error)
-      }
-      return db.rooms.find(query, function (error, rooms) {
-        if (rooms == null) {
-          rooms = []
-        }
+    roomsCollectionPromise.then((rooms) =>
+      rooms.updateOne(query, { $set: update }, { upsert: true }, function (
+        error
+      ) {
         if (error != null) {
           return callback(error)
         }
-        return callback(null, rooms[0])
+        rooms.findOne(query, callback)
       })
-    })
+    )
   },
 
   findAllThreadRooms(project_id, callback) {
     if (callback == null) {
       callback = function (error, rooms) {}
     }
-    return db.rooms.find(
-      {
-        project_id: ObjectId(project_id.toString()),
-        thread_id: { $exists: true }
-      },
-      {
-        thread_id: 1,
-        resolved: 1
-      },
-      callback
+    roomsCollectionPromise.then((rooms) =>
+      rooms
+        .find(
+          {
+            project_id: ObjectId(project_id.toString()),
+            thread_id: { $exists: true }
+          },
+          {
+            thread_id: 1,
+            resolved: 1
+          }
+        )
+        .toArray(callback)
     )
   },
 
@@ -89,20 +86,22 @@ module.exports = ThreadManager = {
     if (callback == null) {
       callback = function (error) {}
     }
-    return db.rooms.update(
-      {
-        project_id: ObjectId(project_id.toString()),
-        thread_id: ObjectId(thread_id.toString())
-      },
-      {
-        $set: {
-          resolved: {
-            user_id,
-            ts: new Date()
+    roomsCollectionPromise.then((rooms) =>
+      rooms.updateOne(
+        {
+          project_id: ObjectId(project_id.toString()),
+          thread_id: ObjectId(thread_id.toString())
+        },
+        {
+          $set: {
+            resolved: {
+              user_id,
+              ts: new Date()
+            }
           }
-        }
-      },
-      callback
+        },
+        callback
+      )
     )
   },
 
@@ -110,17 +109,19 @@ module.exports = ThreadManager = {
     if (callback == null) {
       callback = function (error) {}
     }
-    return db.rooms.update(
-      {
-        project_id: ObjectId(project_id.toString()),
-        thread_id: ObjectId(thread_id.toString())
-      },
-      {
-        $unset: {
-          resolved: true
-        }
-      },
-      callback
+    roomsCollectionPromise.then((rooms) =>
+      rooms.updateOne(
+        {
+          project_id: ObjectId(project_id.toString()),
+          thread_id: ObjectId(thread_id.toString())
+        },
+        {
+          $unset: {
+            resolved: true
+          }
+        },
+        callback
+      )
     )
   },
 
@@ -135,16 +136,18 @@ module.exports = ThreadManager = {
       if (error != null) {
         return callback(error)
       }
-      return db.rooms.remove(
-        {
-          _id: room._id
-        },
-        function (error) {
-          if (error != null) {
-            return callback(error)
+      roomsCollectionPromise.then((rooms) =>
+        rooms.deleteOne(
+          {
+            _id: room._id
+          },
+          function (error) {
+            if (error != null) {
+              return callback(error)
+            }
+            return callback(null, room._id)
           }
-          return callback(null, room._id)
-        }
+        )
       )
     })
   }

services/chat/app/js/mongodb.js

@@ -0,0 +1,15 @@
+const Settings = require('settings-sharelatex')
+const { MongoClient, ObjectId } = require('mongodb')
+
+const clientConnecting = MongoClient.connect(Settings.mongo.url)
+const dbPromise = clientConnecting.then((client) => client.db())
+
+async function getCollection(name) {
+  return (await dbPromise).collection(name)
+}
+
+module.exports = {
+  clientConnecting,
+  ObjectId,
+  getCollection
+}

services/chat/app/js/mongojs.js

@@ -1,9 +0,0 @@
-// TODO: This file was created by bulk-decaffeinate.
-// Sanity-check the conversion and remove this comment.
-const Settings = require('settings-sharelatex')
-const mongojs = require('mongojs')
-const db = mongojs(Settings.mongo.url, ['rooms', 'messages'])
-module.exports = {
-  db,
-  ObjectId: mongojs.ObjectId
-}

services/chat/app/js/router.js

@@ -12,7 +12,7 @@
  */
 let Router
 const MessageHttpController = require('./Features/Messages/MessageHttpController')
-const { ObjectId } = require('./mongojs')
+const { ObjectId } = require('./mongodb')
 
 module.exports = Router = {
   route(app) {

services/chat/package.json

@@ -24,7 +24,7 @@
     "express": "4.17.1",
     "logger-sharelatex": "^2.2.0",
     "metrics-sharelatex": "^2.5.0",
-    "mongojs": "3.1.0",
+    "mongodb": "^3.6.0",
     "request": "^2.88.2",
     "settings-sharelatex": "^1.1.0"
   },

services/chat/test/acceptance/js/DeletingAMessageTests.js

@@ -8,7 +8,7 @@
  * DS102: Remove unnecessary code created because of implicit returns
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
-const { ObjectId } = require('../../../app/js/mongojs')
+const { ObjectId } = require('../../../app/js/mongodb')
 const { expect } = require('chai')
 
 const ChatClient = require('./helpers/ChatClient')

services/chat/test/acceptance/js/DeletingAThreadTests.js

@@ -9,7 +9,7 @@
  * DS102: Remove unnecessary code created because of implicit returns
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
-const { ObjectId } = require('../../../app/js/mongojs')
+const { ObjectId } = require('../../../app/js/mongodb')
 const { expect } = require('chai')
 const crypto = require('crypto')
 

services/chat/test/acceptance/js/EditingAMessageTests.js

@@ -9,7 +9,7 @@
  * DS102: Remove unnecessary code created because of implicit returns
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
-const { ObjectId } = require('../../../app/js/mongojs')
+const { ObjectId } = require('../../../app/js/mongodb')
 const { expect } = require('chai')
 
 const ChatClient = require('./helpers/ChatClient')

services/chat/test/acceptance/js/GettingMessagesTests.js

@@ -10,7 +10,7 @@
  * DS102: Remove unnecessary code created because of implicit returns
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
-const { ObjectId } = require('../../../app/js/mongojs')
+const { ObjectId } = require('../../../app/js/mongodb')
 const { expect } = require('chai')
 const async = require('async')
 const crypto = require('crypto')

services/chat/test/acceptance/js/ResolvingAThreadTests.js

@@ -10,7 +10,7 @@
  * DS102: Remove unnecessary code created because of implicit returns
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
-const { ObjectId } = require('../../../app/js/mongojs')
+const { ObjectId } = require('../../../app/js/mongodb')
 const { expect } = require('chai')
 const crypto = require('crypto')
 

services/chat/test/acceptance/js/SendingAMessageTests.js

@@ -11,7 +11,7 @@
  * DS102: Remove unnecessary code created because of implicit returns
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
-const { ObjectId } = require('../../../app/js/mongojs')
+const { ObjectId } = require('../../../app/js/mongodb')
 const { expect } = require('chai')
 
 const ChatClient = require('./helpers/ChatClient')

services/chat/test/acceptance/js/helpers/ChatApp.js

@@ -12,7 +12,6 @@
  * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
  */
 const app = require('../../../../app')
-require('logger-sharelatex').logger.level('error')
 
 module.exports = {
   running: false,