fix problems from changing to es6 imports

config/db.js

@@ -1,11 +1,11 @@
-import { connect } from "mongoose";
-import { get } from "config";
-const mongoURI = get("mongoURI");
+import mongoose from "mongoose";
+import config from "config";
+const mongoURI = config.get("mongoURI");
 
 // Connects to database
 const connectDB = async () => {
   try {
-    await connect(mongoURI, {
+    await mongoose.connect(mongoURI, {
       // Change deprecated settings to resolve warnings
       useUnifiedTopology: true,
       useNewUrlParser: true,

routes/api/auth.js

@@ -1,5 +1,5 @@
-import { Router } from "express";
-const router = Router();
+import express from "express";
+const router = express.Router();
 
 // @route   GET api/auth
 // @desc    Test route

server.js

@@ -1,5 +1,7 @@
 import express from "express";
-import connectDB from "./config/db";
+import connectDB from "./config/db.js";
+
+import auth from "./routes/api/auth.js";
 
 const app = express();
 
@@ -9,7 +11,7 @@ connectDB();
 app.get("/", (req, res) => res.send("API Running"));
 
 // Define Routes
-app.use("/api/auth", require("./routes/api/auth"));
+app.use("/api/auth", auth);
 
 const PORT = process.env.port || 5000;