Add mongoDB and it's config

 const jwt = require("jsonwebtoken");
 const bcrypt = require("bcryptjs");
+// handles "exception" inside of async express routes
+// (Used for mongoDB error in this project)
 const asyncHandler = require("express-async-handler");
 
 // @desc Signup new user
@@ -29,7 +31,10 @@ const loginUser = asyncHandler(async (req, res) => {
   // Send response
 });
 
+const getSelf = asyncHandler(async (req, res) => {});
+
 module.exports = {
   signupUser,
   loginUser,
+  getSelf,
 };

-const colors = require("colors");
 const mongoose = require("mongoose");
+const colors = require("colors");
 
-const connectDB = async () => {};
+const connectDB = async () => {
+  try {
+    const conn = await mongoose.connect(process.env.MONGO_URI);
+    console.log(`MongoDB Connected: ${conn.connection.host}`.cyan.underline);
+  } catch (error) {
+    console.log(error);
+    process.exit(1);
+  }
+};
 
 module.exports = connectDB;

+const mongoose = require("mongoose");
+
+const userSchema = mongoose.Schema(
+  {
+    username: {
+      type: String,
+      required: [true, "Please add a username"],
+    },
+    email: {
+      type: String,
+      required: [true, "Please add a email"],
+    },
+    password: {
+      type: String,
+      required: [true, "Please add a password"],
+    },
+  },
+  {
+    timestamps: true,
+  }
+);
+
+const userModel = mongoose.model("User", userSchema);
+module.exports = userModel;