Node.js + Vue.js + Mongo DB - CRUD example - MEVN stack development example

Hello everyone, today we will learn how to build a full-stack application that is a basic User Management Application using Node.js, MongoDB, and Vue.js.GitHub repository link is provided at the end of this tutorial. You can download the source code.

  • Node.js Express exports REST APIs & interacts with MongoDB Database utilizing Mongoose ODM.
  • Vue.js is an open-source, progressive JavaScript framework for building utilizer interfaces. Vue fortifies the component-based approach to building web apps – it includes single-file components that are independent and loosely coupled to enable better code reuse and more expeditious development

After completing this tutorial what we will build? 

We will build a full-stack web application that is a basic User Management Application with CRUD features: 
  • Create User 
  • List User
  • Update User
  • Delete User 

Following is the screenshot of our application -

-Retrieve all Users:


-Add a User:


-Update User:


We divided this tutorial into two parts. 

PART 1 - Rest APIs Development using Node.js and Express
PART 2 - UI development using Vue.js

PART 1 - Rest APIs Development using Node.js and Express

These are APIs that Node.js Express App will export:

  1. GET all User's        :     /api/v1/users
  2. GET User by ID     :     /api/v1/users/{_id}
  3. POST User             :     /api/v1/users 
  4. PUT User               :     /api/v1/users/{_id} 
  5. DELETE User       :     /api/v1/users/{_id}

Back end project structure:


The package.json file 

A package.json is a JSON file that subsists at the root of a Javascript/Node project. It holds metadata pertinent to the project and is utilized for managing the project's dependencies, scripts, version, and a whole lot more.
{
  "name": "node_app",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "nodemon index.ts",
    "seed": "ts-node ./seed/seed.ts",
    "lint": "eslint . --ext .ts"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "@types/bcryptjs": "^2.4.2",
    "@types/cors": "^2.8.6",
    "@types/express": "^4.17.6",
    "@types/express-fileupload": "^1.1.5",
    "@types/jsonwebtoken": "^8.5.0",
    "@types/mongoose": "^5.7.20",
    "@types/node": "^14.0.1",
    "@types/properties-reader": "^2.1.0",
    "bcryptjs": "^2.4.3",
    "body-parser": "^1.19.0",
    "chai": "^4.2.0",
    "chai-http": "^4.3.0",
    "confi": "^9.10.1",
    "cors": "^2.8.5",
    "custom-env": "^2.0.1",
    "del": "^6.0.0",
    "dotenv": "^8.2.0",
    "express": "^4.17.1",
    "express-fileupload": "^1.2.0",
    "jsonwebtoken": "^8.5.1",
    "lodash": "^4.17.20",
    "lokijs": "^1.5.11",
    "mocha": "^8.2.1",
    "mongodb": "^3.5.7",
    "mongoose": "^5.9.14",
    "mongoose-seed": "^0.6.0",
    "morgan": "^1.10.0",
    "multer": "^1.4.2",
    "properties-reader": "^2.1.1",
    "ts-node": "^8.10.1",
    "typescript": "^3.9.2"
  },
  "devDependencies": {
    "@typescript-eslint/eslint-plugin": "^4.7.0",
    "@typescript-eslint/parser": "^4.7.0",
    "eslint": "^6.8.0",
    "eslint-config-airbnb-base": "^14.1.0",
    "eslint-plugin-import": "^2.20.2",
    "nodemon": "^2.0.3"
  }
}


The db.ts file

import mongoose = require('mongoose');

import UserDoc = require('./models/user.model')
export const connectionString = 'mongodb://localhost/user-dev';

mongoose.connect(connectionString, {
  useNewUrlParser: true,
  useUnifiedTopology: true,
  useCreateIndex: true,
  useFindAndModify: false,
});

export const models = { UserDoc };


The collection.ts file

const collections = {
  users: 'users'
};

export = collections


The user.model.ts file inside the model package

import mongoose from 'mongoose';
import collections from '../collections';
import { User } from '../interface/user.interface';

const schema = new mongoose.Schema(
  {
    firstName: {
      type: String,
    },
    lastName: {
      type: String
    },
    emailId: {
      type: String,
      unique: true
    }
  },
);

schema.set('toJSON', { virtuals: true });

export = mongoose.model<User>(collections.users, schema);


The user.interface.ts file inside the interface package

import { Document } from 'mongoose';

export interface User extends Document{
    firstName: string;
    lastName: string;
    emailId: string;
    
}


The user.routes.ts file

import { Router, Request, Response } from 'express';
import { updateUser, findById, 
       deleteUserById,saveUserData,getAllUsers } 
               from '../services/user.service';

const router = Router();

router.post('/users', (req: Request, res: Response) => {
  saveUserData(req, res);
});
router.put('/users/:id', (req: Request, res: Response) => {
  updateUser(req, res);
});
router.get('/users', (req: Request, res: Response) => {
  getAllUsers(req, res);
});
router.delete('/users/:id', (req: Request, res: Response) => {
  deleteUserById(req, res);
});
router.get('/users/:id', (req: Request, res: Response) => {
  findById(req, res);
});
export = router


The user.service.ts file

import { Request, Response } from 'express';
import { models } from '../db/db';

const { UserDoc } = models;

//get all user
export async function 
     getAllUsers(request: Request, response: Response): 
                     Promise<Response> {

  try {
    const data = await UserDoc.find();
    console.log(data)
    return response.status(200).send(data);
  } catch (error) {
    console.log(Error)
    return response.status(500).
           send({ message: "Technical Error" });
  }
}

//Save new user
export async function 
        saveUserData(request: Request, response: Response): 
                      Promise<Response> {

  console.log(request.body)
  try {
    const data = new UserDoc(request.body);
    await data.save();
    return response.status(200).send({ data });
  } catch (error) {
    console.log(error)
    return response.status(500).
        send({ message: "Technical Error" });
  }
}

//get user by id
export async function 
         findById(request: Request, response: Response): 
                          Promise<Response> {

  try {
    const data = await UserDoc.findById(request.params.id);
    return response.status(200).send(data);
  } catch (error) {
    console.log(Error)
    return response.status(500).
          send({ message: "Technical Error" });
  }

}

//delete user
export async function 
          deleteUserById(request: Request, response: Response): 
                                 Promise<Response> {

  try {
    console.log(request.params.id)
    const data = await UserDoc.remove({ _id: request.params.id });
    console.log(data)
    return response.status(200).
          send({ data: "Deleted Successfully" });
  } catch (error) {
    console.log(Error)
    return response.status(500).
         send({ message: "Technical Error" });
  }
}

export async function 
       updateUser(request: Request, response: Response): 
                               Promise<Response> {

  try {
    console.log(request.body)
    const data = await UserDoc.
         findOneAndUpdate({ _id: request.params.id },
            request.body, { new: true });
    console.log(data)
    return response.status(200).
        send({ data: "Successfully Updated" });
  } catch (error) {
    console.log(Error)
    return response.status(500).
       send({ message: "Technical Error" });
  }
}


The index.ts file

import express from 'express';
import cors from 'cors';
import bodyParser from 'body-parser';
import user from './routes/user.routes';
const morgan = require('morgan');
const fileUpload = require('express-fileupload');
const fs = require('fs');
//if (process.env.NODE_ENV !== 'production') {
//require('dotenv').config();
//}

const app = express();
app.use(fileUpload({
  createParentPath: true
}));

app.use(morgan('common', {
  stream: fs.createWriteStream('./' + new Date().
               toISOString().substr(0, 10) 
                             + '.log', { flags: 'a' })
}));
app.use(morgan('dev'));
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
app.use(cors());
app.use('/api/v1/', user)
app.listen(8081, () => {
  // eslint-disable-next-line no-console
  console.log('App listening on port 8081!');
});


Download the dependencies using the following command

npm install

Run our backend application using the following command

npm start



PART 2 - UI development using Vue.js

Now we are going to develop a Vue.js web application. 

package structure - Front end




The package.json file

{
  "name": "frontend-vuejs",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "serve": "vue-cli-service serve",
    "build": "vue-cli-service build",
    "lint": "vue-cli-service lint"
  },
  "dependencies": {
    "axios": "^0.18.0",
    "vue": "^2.6.6",
    "vue-router": "^3.0.2"
  },
  "devDependencies": {
    "@vue/cli-plugin-babel": "^3.5.0",
    "@vue/cli-plugin-eslint": "^3.5.0",
    "@vue/cli-service": "^3.5.0",
    "babel-eslint": "^10.0.1",
    "eslint": "^5.8.0",
    "eslint-plugin-vue": "^5.0.0",
    "vue-template-compiler": "^2.5.21"
  },
  "eslintConfig": {
    "root": true,
    "env": {
      "node": true
    },
    "extends": [
      "plugin:vue/essential",
      "eslint:recommended"
    ],
    "rules": {},
    "parserOptions": {
      "parser": "babel-eslint"
    }
  },
  "postcss": {
    "plugins": {
      "autoprefixer": {}
    }
  },
  "browserslist": [
    "> 1%",
    "last 2 versions",
    "not ie <= 8"
  ]
}


Components

Vue Components are one of the important features of VueJS that creates custom elements, which can be reused in HTML

User.vue

<template>
  <div>
    <h3>User</h3>
    <div class="container">
      <form @submit="validateAndSubmit">
        <div v-if="errors.length">
          <div
            class="alert alert-danger"
            v-bind:key="index"
            v-for="(error, index) in errors"
          >
            {{ error }}
          </div>
        </div>
        <fieldset class="form-group">
          <label>First Name</label>
          <input type="text" class="form-control" 
                     v-model="firstName" />
        </fieldset>
        <fieldset class="form-group">
          <label>Last Name</label>
          <input type="text" class="form-control" 
                     v-model="lastName" />
        </fieldset>
        <fieldset class="form-group">
          <label>Email Id</label>
          <input type="text" class="form-control" 
                    v-model="emailId" />
        </fieldset>
        <button class="btn btn-success" type="submit">Save</button>
      </form>
    </div>
  </div>
</template>
<script>
import UserDataService from "../service/UserDataService";

export default {
  name: "User",
  data() {
    return {
      firstName: "",
      lastName: "",
      emailId: "",
      errors: [],
    };
  },
  computed: {
    id() {
      return this.$route.params.id;
    },
  },
  methods: {
    refreshUserDetails() {
      UserDataService.retrieveUser(this.id).then((res) => {
        this.firstName = res.data.firstName;
        this.lastName = res.data.lastName;
        this.emailId = res.data.emailId;
      });
    },
    validateAndSubmit(e) {
      e.preventDefault();
      this.errors = [];
      if (!this.firstName) {
        this.errors.push("Enter valid values");
      } else if (this.firstName.length < 5) {
        this.errors.
            push("Enter atleast 5 characters in First Name");
      }
      if (!this.lastName) {
        this.errors.push("Enter valid values");
      } else if (this.lastName.length < 5) {
        this.errors.
            push("Enter atleast 5 characters in Last Name");
      }
      if (this.errors.length === 0) {
        if (this.id == -1) {
          UserDataService.createUser({
            firstName: this.firstName,
            lastName: this.lastName,
            emailId: this.emailId,
          }).then(() => {
            this.$router.push("/users");
          });
        } else {
          UserDataService.updateUser(this.id, {
            id: this.id,
            firstName: this.firstName,
            lastName: this.lastName,
            emailId: this.emailId,
          }).then(() => {
            this.$router.push("/users");
          });
        }
      }
    },
  },
  created() {
    this.refreshUserDetails();
  },
};
</script>


Users.vue

<template>
  <div class="container">
    <h3>All Users</h3>
    <div v-if="message" class="alert alert-success">
              {{ this.message }}</div>
    <div class="container">
      <table class="table">
        <thead>
          <tr>
           
            <th>First Name</th>
            <th>Last Name</th>
            <th>Email Id</th>
            <th>Update</th>
            <th>Delete</th>
          </tr>
        </thead>
        <tbody>
          <tr v-for="user in users" v-bind:key="user.id">
          
            <td>{{ user.firstName }}</td>
            <td>{{ user.lastName }}</td>
            <td>{{ user.emailId }}</td>
            <td>
              <button class="btn btn-warning" 
                 v-on:click="updateUser(user.id)">
                  Update
              </button>
            </td>
            <td>
              <button class="btn btn-danger" 
                 v-on:click="deleteUser(user.id)">
                  Delete
              </button>
            </td>
          </tr>
        </tbody>
      </table>
      <div class="row">
        <button class="btn btn-success"
               v-on:click="addUser()">Add</button>
      </div>
    </div>
  </div>
</template>
<script>
import UserDataService from "../service/UserDataService";

export default {
  name: "Users",
  data() {
    return {
      users: [],
      message: "",
    };
  },
  methods: {
    refreshUsers() {
      UserDataService.retrieveAllUsers().then((res) => {
        this.users = res.data;
      });
    },
    addUser() {
      this.$router.push(`/user/-1`);
    },
    updateUser(id) {
      this.$router.push(`/user/${id}`);
    },
    deleteUser(id) {
      UserDataService.deleteUser(id).then(() => {
        this.refreshUsers();
      });
    },
  },
  created() {
    this.refreshUsers();
  },
};
</script>


UserDataService.js

import axios from 'axios'

const USER_API_URL = 'http://localhost:8081/api/v1'

class UserDataService {

    retrieveAllUsers() {

        return axios.get(`${USER_API_URL}/users`);
    }

    retrieveUser(id) {

        return axios.get(`${USER_API_URL}/users/${id}`);
    }

    deleteUser(id) {

        return axios.delete(`${USER_API_URL}/users/${id}`);
    }

    updateUser(id, user) {

        return axios.put(`${USER_API_URL}/users/${id}`, user);
    }

    createUser(user) {

        return axios.post(`${USER_API_URL}/users`, user);
    }   
}

export default new UserDataService()


App.vue

<template>
  <div class="container">
    <div class="navbar-header">
      <a class="navbar-brand" href="#">Node.js + Mongo DB + 
                      Vue.js CRUD Application</a><br/><br/>
    </div>
    <router-view/>
  </div>
</template>

<script>
export default {
  name: "app"
};
</script>

<style>
@import url(https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css);
</style>


routes.js

import Vue from "vue";
import Router from "vue-router";

Vue.use(Router);

const router = new Router({
    mode: 'history',
    routes: [
        {
            path: "/",
            name: "Users",
            component: () => import("./components/Users"),
        },
        {
            path: "/users",
            name: "Users",
            component: () => import("./components/Users"),
        },
        {
            path: "/user/:id",
            name: "User",
            component: () => import("./components/User"),
        },
    ]
});

export default router;


main.js

import Vue from 'vue'
import App from './App.vue'
import router from './routes';

Vue.config.productionTip = false

new Vue({
  router,
  render: h => h(App),
}).$mount('#app')


## Install the dependencies

npm install

### Run the application in local

npm run serve

 App running at:- Local:   http://localhost:8080/ 

Download Source code

Popular posts from this blog

Learn Java 8 streams with an example - print odd/even numbers from Array and List

Example 1: Java 8 program to print odd numbers from a List   import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; /*Java 8 Program to find Odd Numbers from a List*/ public class DriverClass { public static void main( String [] args) { List < Integer > numbers = Arrays. asList( 1 , 4 , 8 , 40 , 11 , 22 , 33 , 99 ); List < Integer > oddNumbers = numbers.stream(). filter(o -> o % 2 != 0 ). collect(Collectors.toList()); System.out.println(oddNumbers); } } 1. Initialize List using Arrays.asList() method. Java's built-in Arrays.asList() method converts an array into a list. This method takes an array as an argument and returns a List object. 2.  Java List interface provides stream() method which returns a sequential Stream with list of Integer as its source. 3. The Java stream filter(...
Read more

Java Stream API - How to convert List of objects to another List of objects using Java streams?

Image
In this section, we will show you how to convert a List of objects to another List of objects in Java using the Java streams map(). The ‘map’ method maps each element to its corresponding result. Java Stream API   The Java Stream API provides a functional programming approach over the object oriented capabilities of Java. It is used for processing collections of objects. The Stream in Java can be defined as a sequence of elements from a source List, Set or Array. Most of the stream operations return a Stream. This avails engender a chain of stream operations(stream pipe-lining). The streams withal support the aggregate or terminal operations on the elements. for example, finding the sum or maximum element or finding the average etc...Stream operations can either be executed sequentially or parallel. when performed parallelly, it is called a parallel stream.   Stream map() Method   The Java 8 Stream map() is an intermediate operation. It converts Stream<obj1> to Str...
Read more

Registration and Login with Spring Boot + Spring Security + Thymeleaf

Image
In this section, we will learn how to create user registration and login using Spring boot, Spring security, Thymeleaf, JPA, and H2DB. The GitHub repository link is provided at the end of this tutorial. You can download the source code. Technologies used: Spring Boot 2.5.5  Spring Data JPA  Spring Security  Thymeleaf  Maven 3+  Java 17  H2 Database   User Interface User Registration Authentication Failed Authentication success Sign out Final Project Structure: Complete pom.xml: <? xml version ="1.0" encoding ="UTF-8" ?> < project xmlns ="http://maven.apache.org/POM/4.0.0" xmlns: xsi ="http://www.w3.org/2001/XMLSchema-instance" xsi :schemaLocation ="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" > < modelVersion >4.0.0</ modelVersion > < parent > < groupId >org.springframework.boot</ groupId > < artifactId >spring-boot-starter-pare...
Read more

Java, Spring Boot Mini Project - Library Management System - Download

Image
Hello everyone, Hope you are doing well. Here, we provide a Library Management System mini-project for beginners, it's free for download. Maybe you can build more on top of this project and create your own product, that's all about you. The source code download link is provided at the end of this post. 1. Benefit of this project You could cover the following technologies and features by learning and debugging this mini project. Java 17 Java Stream Java Lamda Expressions Java Records Functional programming Object-oriented programming var Keyword in Java Generics in Java Java Switch Spring boot 2.6.4 Spring Security Thymeleaf template engine OpenCSV Spring Data JPA Server Side Pagination H2 Database  Bootstrap HTML CSS and more... 2. Objective Of Spring Boot On Library Management System The main objective of this project is to manage the details of the books, author, category, and publisher. Only Admin/Librarian will manage all these activities. Also, they can export the data in ...
Read more

ReactJS, Spring Boot JWT Authentication Example

Image
In this tutorial, we’ll create a user registration & login example using ReactJS, Spring Boot, Spring Security, and JWT authentication. You could download the source code from our Github repository, the download link is provided at the end of this tutorial. Technologies used Backend Technologies: Java 17 Spring Boot 2.7.0 Spring Security Spring Data JPA JWT H2 Database Frontend Technologies: React 17.0.1 Axios 0.27.2 Redux 4.0.5 Bootstrap 4.5.2 ReactJS - SpringBoot - JWT - Flow Backend Project Directory: Frontend Project Directory: Following is the screenshot of our application - User Registration: User Signin: Profile View: Access Resource: We will build two projects:  1. Backend:   spring-boot-security-jwt 2. Frontend: react-redux-jwt Project 1: spring-boot-security-jwt Pom.xml <?xml version = "1.0" encoding = "UTF-8" ?> <project xmlns = "http://maven.apache.org/POM/4.0.0" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"...
Read more

Top 5 Java ORM tools - 2024

Image
  The term ORM refers to object-relational mapping, which uses objects to adapt programming languages to database systems while allowing them to function with SQL and object-oriented programming ideas. Any kind of database management system that can accomplish object mapping to the table in the virtual system is suitable for the implementation of ORM. Java has a wide variety of ORM tools, some of which are mentioned below: 1. Hibernate Hibernate is a lightweight, open-source, non-invasive Java ORM (Object-Relational Mapping) framework that allows developers to create objects that function independently of database software and create persistence logic in any Java or JavaEE application. It offers an abstraction layer, so developers don't have to bother about implementations; Hibernate handles these tasks internally, such as connecting to databases and creating queries to carry out CRUD operations, among other things. Persistence logic development is done with it. Persistence logic r...
Read more

Java - Blowfish Encryption and decryption Example

Image
Blowfish is an encryption method developed by Bruce Schneier in 1993 as an alternative to the DES encryption method. It is significantly faster than DES and provides good encryption speed, although no effective cryptanalysis technique has been found to date. It is one of the first secure block ciphers that is not protected by any patents and is therefore freely available for anyone to use. This is a symmetric block cipher algorithm. Block size: 64 bits Key size: variable size from 32 to 448 bits number of subsections: 18 [P-array] number of rounds: 16 number of substitution blocks: 4 [each with 512 records of 32 bits each] develop  Example 1: Encryption and decryption using Blowfish import java.io.UnsupportedEncodingException; import java.nio.charset.Charset; import java.security.InvalidKeyException; import java.security.NoSuchAlgorithmException; import java.util.Base64; import javax.crypto.BadPaddingException; import javax.crypto.Cipher; import javax.crypto.IllegalBlockSiz...
Read more

Spring boot video streaming example-HTML5

Image
Hello everyone, Today we will learn how to stream MP4 video using Spring Boot and Spring Web Flux.  The Source code download link is provided at the end of this post. New, Quarkus Practice User Interface   Project Structure: G radle(build.gradle) plugins { id 'org.springframework.boot' version '2.5.4' id 'io.spring.dependency-management' version '1.0.11.RELEASE' id 'java' } group = 'com.knf.demo' version = '0.0.1-SNAPSHOT' sourceCompatibility = '11' repositories { mavenCentral() } dependencies { implementation 'org.springframework.boot:spring-boot-starter-webflux' testImplementation 'org.springframework.boot:spring-boot-starter-test' testImplementation 'io.projectreactor:reactor-test' } test { useJUnitPlatform() } Service (VideoStreamingService.java) package  com.knf.demo.service ; import org.springframework.beans.factory.annotation. Autowired ; import org.springframework...
Read more

Google Cloud Storage + Spring Boot - File Upload, Download, and Delete

Image
In this section, we will learn  how to  create a simple spring boot application to perform different file operations such as upload, download, list, and delete files from the Google Cloud Storage. 1.  A little bit of Background Google Cloud Storage Cloud Storage is a managed service for storing unstructured data. Store any amount of data and retrieve it as often as you like. More Info - click here! Spring Boot Spring Boot makes it easy to create stand-alone, production-grade Spring-based Applications that you can "just run".  More Info - click here! 2. Create a GCP Project First, Sign into the Google console at  https://console.cloud.google.com . You can create a new project by first selecting the project dropdown in the top left and selecting " New Project ". Next, specify your GCP  Project name  and  Project ID . Then  Click on the " CREATE " button. Copy " Project ID " and keep it for future purposes. 3. Create a Google Cloud Storage bucke...
Read more