Created db.js file to as source of mongoose connection

app.js

@@ -1,6 +1,6 @@
 const express = require("express"),
   routes = require("./apiRoutes"),
-  mongoose = require("mongoose"),
+  mongoose = require("./helpers/db"),
   path = require("path"),
   dotenv = require("dotenv"),
   bodyParser = require("body-parser"),
@@ -10,9 +10,6 @@ dotenv.config({ path: path.resolve(__dirname, ".env") });
 
 const app = express();
 
-mongoose.connect(process.env.STEIN_MONGO_URL, { useNewUrlParser: true });
-mongoose.Promise = require("bluebird");
-
 app.use(cors());
 app.use(bodyParser.json({ type: () => true }));
 app.use(bodyParser.urlencoded({ extended: false }));

controllers/updateRequestCount.js

@@ -1,5 +1,3 @@
-const mongoose = require("mongoose");
-
 module.exports = (req, res, next) => {
   const user = res.locals.user;
 

helpers/db.js

@@ -0,0 +1,9 @@
+const Mongoose = require("mongoose").Mongoose;
+
+const dbConnection = new Mongoose();
+
+dbConnection.Promise = require("bluebird");
+dbConnection.connect(process.env.STEIN_MONGO_URL, { useNewUrlParser: true });
+
+
+module.exports = dbConnection;

models/admin.js

@@ -1,4 +1,4 @@
-const mongoose = require("mongoose"),
+const mongoose = require("../helpers/db"),
   bcrypt = require("bcrypt");
 
 const schema = mongoose.Schema({

models/storage.js

@@ -1,4 +1,4 @@
-const mongoose = require("mongoose");
+const mongoose = require("../helpers/db");
 
 const schema = mongoose.Schema({
   googleId: {

models/user.js

@@ -1,4 +1,4 @@
-const mongoose = require("mongoose"),
+const mongoose = require("../helpers/db"),
   googleAuthLib = require("google-auth-library"),
   googleOAuthConfig = require("../helpers/authentication/configuration").google;