Return this from connect for chaining

server/src/bin/addUser.js

@@ -1,13 +1,13 @@
-import path from 'path'
-import config from 'config'
-import mongoose from 'mongoose'
-import { DB } from '../database'
-import credential from 'credential'
-import readlineSync from 'readline-sync'
-import crypto from 'crypto'
-import urlSafeBase64 from 'urlsafe-base64'
-import util from 'util'
-import autobind from 'autobind-decorator'
+import path from "path"
+import config from "config"
+import mongoose from "mongoose"
+import { DB } from "../database"
+import credential from "credential"
+import readlineSync from "readline-sync"
+import crypto from "crypto"
+import urlSafeBase64 from "urlsafe-base64"
+import util from "util"
+import autobind from "autobind-decorator"
 
 @autobind
 class AddUserTool {
@@ -18,7 +18,7 @@ class AddUserTool {
 
   async run() {
     try {
-      const mongoUri = config.get('uri.mongo')
+      const mongoUri = config.get("uri.mongo")
       const db = await new DB().connect(mongoUri)
 
       console.log(`Connected to MongoDB at '${mongoUri}'`)
@@ -27,10 +27,10 @@ class AddUserTool {
       let user = new User({
         administrator: true,
       })
-      user.firstName = readlineSync.question('First name? ')
-      user.lastName = readlineSync.question('Last name? ')
-      user.email = readlineSync.question('Email? ')
-      let password = readlineSync.question('Password? ', {hideEchoBack: true})
+      user.firstName = readlineSync.question("First name? ")
+      user.lastName = readlineSync.question("Last name? ")
+      user.email = readlineSync.question("Email? ")
+      let password = readlineSync.question("Password? ", { hideEchoBack: true })
       let cr = credential()
 
       const json = await util.promisify(cr.hash)(password)
@@ -40,7 +40,7 @@ class AddUserTool {
       const savedUser = await user.save()
 
       console.log(`User is ${user}`)
-    } catch(error) {
+    } catch (error) {
       console.log(`error: ${error.message}`)
     }
   }
@@ -48,14 +48,21 @@ class AddUserTool {
 
 const log = {
   info: console.info,
-  error: function() { console.error(chalk.red('error:', [...arguments].join(' ')))},
-  warning: function() { console.error(chalk.yellow('warning:', [...arguments].join(' ')))}
+  error: function() {
+    console.error(chalk.red("error:", [...arguments].join(" ")))
+  },
+  warning: function() {
+    console.error(chalk.yellow("warning:", [...arguments].join(" ")))
+  },
 }
 
-const tool = new AddUserTool('addUser', log)
+const tool = new AddUserTool("addUser", log)
 
-tool.run(process.argv.slice(2)).then((exitCode) => {
-  process.exit(exitCode)
-}).catch((err) => {
-  console.error(err)
-})
+tool
+  .run(process.argv.slice(2))
+  .then((exitCode) => {
+    process.exit(exitCode)
+  })
+  .catch((err) => {
+    console.error(err)
+  })

server/src/database/DB.js

@@ -29,6 +29,8 @@ export class DB {
     this.Activity = connection.model("Activity", Schemas.activitySchema)
     this.Team = connection.model("Team", Schemas.teamSchema)
     this.Counter = connection.model("Counter", Schemas.counterSchema)
+
+    return this
   }
 
   newObjectId(s) {