Start backend

.env

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+APP_NAME=HR
+PORT=5000
+NODE_ENV=development
+
+STATIC_DIR=assets

.gitignore

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+**node_modules

server/.gitignore

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-/node_modules
+**node_modules
+/node_modules
+.env

server/app/controllers/employeeController.js

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+const Employee = require("../../models/employeeModel");
+
+// Create and Save a new employee
+exports.create = (req, res) => {
+  // Validate request
+  if (!req.body.email) {
+    return res.status(400).send({
+      message: "Email can not be empty",
+    });
+  }
+
+  // Create a employee
+  const employee = new Employee({
+    first_name: req.body.first_name || "First name is required",
+    last_name: req.body.last_name || "last name is required",
+    user_name: req.body.user_name || "First name is required",
+    email: req.body.email || "Email is required",
+    employee_id: req.body.first_name || "ID is required",
+    joining_date: req.body.joining_date,
+    phone_number: req.body.phone_number,
+    qualification: req.body.qualification,
+    department: req.body.department,
+    designation: req.body.designation,
+  });
+
+  // Save employee in the database
+  employee
+    .save()
+    .then((data) => {
+      res.send(data);
+    })
+    .catch((err) => {
+      res.status(500).send({
+        message: err.message || "Some error occurred while adding employee.",
+      });
+    });
+};
+
+// Retrieve and return all employees from the database.
+exports.findAll = (req, res) => {
+  Employee.find()
+    .then((employees) => {
+      res.send(employees);
+    })
+    .catch((err) => {
+      res.status(500).send({
+        message:
+          err.message || "Some error occurred while retrieving employees.",
+      });
+    });
+};
+
+// Find a single employee with a employeeId
+exports.findOne = (req, res) => {
+  Employee.findById(req.params.employeeId)
+    .then((employee) => {
+      if (!employee) {
+        return res.status(404).send({
+          message: "Employee not found with id " + req.params.employeeId,
+        });
+      }
+      res.send(employee);
+    })
+    .catch((err) => {
+      if (err.kind === "ObjectId") {
+        return res.status(404).send({
+          message: "Employee not found with id " + req.params.employeeId,
+        });
+      }
+      return res.status(500).send({
+        message: "Error retrieving employee with id " + req.params.employeeId,
+      });
+    });
+};
+
+// Update a employee identified by the employeeId in the request
+exports.update = (req, res) => {
+  // Validate Request
+  if (!req.body.email) {
+    return res.status(400).send({
+      message: "Email can not be empty",
+    });
+  }
+
+  // Find employee and update it with the request body
+  Employee.findByIdAndUpdate(
+    req.params.employeeId,
+    {
+      first_name: req.body.first_name,
+      last_name: req.body.last_name,
+      user_name: req.body.user_name,
+      email: req.body.email,
+      employee_id: req.body.employee_id,
+      joining_date: req.body.joining_date,
+      phone_number: req.body.phone_number,
+      qualification: req.body.qualification,
+      department: req.body.department,
+      designation: req.body.designation,
+    },
+    { new: true }
+  )
+    .then((employee) => {
+      if (!employee) {
+        return res.status(404).send({
+          message: "Employee not found with id " + req.params.employeeId,
+        });
+      }
+      res.send(employee);
+    })
+    .catch((err) => {
+      if (err.kind === "ObjectId") {
+        return res.status(404).send({
+          message: "Employee not found with id " + req.params.employeeId,
+        });
+      }
+      return res.status(500).send({
+        message: "Error updating employee with id " + req.params.employeeId,
+      });
+    });
+};
+
+// Delete a employee with the specified employeeid in the request
+exports.delete = (req, res) => {
+  Employee.findByIdAndRemove(req.params.employeeId)
+    .then((employee) => {
+      if (!employee) {
+        return res.status(404).send({
+          message: "Employee not found with id " + req.params.employeeId,
+        });
+      }
+      res.send({ message: "Employee deleted successfully!" });
+    })
+    .catch((err) => {
+      if (err.kind === "ObjectId" || err.name === "NotFound") {
+        return res.status(404).send({
+          message: "Employee not found with id " + req.params.employeeId,
+        });
+      }
+      return res.status(500).send({
+        message: "Could not delete employee with id " + req.params.employeeId,
+      });
+    });
+};

server/app/controllers/index.js

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+const employeeController = require("./employeeController");
+const userController = require("./user.controller");
+
+module.exports = {
+  employeeController,
+  userController,
+};