Init MongoDB

 SERVER_PORT=4000
+MONGO_URL=mongodb://localhost:27017/jaksimsamil
\ No newline at end of file

 const express = require("express");
 const morgan = require("morgan");
+const mongoose = require("mongoose");
 const app = express();
 require("dotenv").config();
-
+const { SERVER_PORT, MONGO_URL } = process.env;
 app.use(
   morgan("[:date[iso]] :method :status :url :response-time(ms) :user-agent")
 );
@@ -10,6 +11,14 @@ app.use(express.json());
 app.use(express.urlencoded({ extended: false }));
 app.use("/api", require("./api"));
 
-app.listen(process.env.SERVER_PORT, () => {
+mongoose
+  .connect(MONGO_URL, { useNewUrlParser: true, useFindAndModify: false })
+  .then(() => {
+    console.log("Connected to MongoDB");
+  })
+  .catch((e) => {
+    console.log(e);
+  });
+app.listen(SERVER_PORT, () => {
   console.log("Server is running on port", process.env.SERVER_PORT);
 });

@@ -4,9 +4,11 @@
   "main": "index.js",
   "license": "MIT",
   "dependencies": {
+    "dotenv": "^8.2.0",
     "eslint-config-prettier": "^6.11.0",
     "express": "^4.17.1",
     "fs": "^0.0.1-security",
+    "mongoose": "^5.9.17",
     "morgan": "^1.10.0",
     "path": "^0.12.7"
   },