Implemented addEmployee and getEmployees

.gitignore

@@ -1,4 +1,4 @@
-node_modules
+/node_modules
 /examples
-.env
+/.env
 .vscode

controllers/Employee.controller.js

@@ -0,0 +1,34 @@
+const Employee = require("../models/Employee.model");
+
+const addEmployee = (req, res) => {
+  const { name, position, salary } = req.body;
+
+  const employee = new Employee({
+    name,
+    position,
+    salary,
+  });
+
+  employee
+    .save()
+    .then((createdEmployee) => {
+      res.json(createdEmployee);
+    })
+    .catch((error) => {
+      res.status(400).json(error);
+    });
+};
+
+const getEmployees = async (req, res) => {
+  try {
+    const employees = await Employee.find();
+    res.json(employees);
+  } catch (error) {
+    res.status(400).json(error);
+  }
+};
+
+module.exports = {
+  addEmployee,
+  getEmployees,
+};

models/Employee.model.js

@@ -0,0 +1,10 @@
+const mongoose = require("mongoose");
+const { Schema } = mongoose;
+
+const employeeSchema = new Schema({
+  name: String,
+  position: String,
+  salary: Number,
+});
+
+module.exports = Employee = mongoose.model('Employee', employeeSchema);