Quarkus + React JS + MongoDB CRUD Example

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

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

Technologies used:

Back-End: 

  • Java 11
  • Quarkus 2.2.3Final
  • MongoDB
  • MongDB Panache

Front-End: 

  • React-router-dom 5+ 
  • Axios 0.19.2 
  • bootstrap 4.4.1

User Interface

-Add User:


-Retrieve all Users:

-Retrieve User by Id:

-Update User:

We divided this tutorial into two parts. 

PART 1 - Rest APIs Development using Quarkus
PART 2 - UI development using React JS

PART 1 - Rest APIs Development using Quarkus

Project Directory:


Maven[pom.xml]

A Project Object Model or POM is the fundamental unit of work in Maven. It is an XML file that contains information about the project and configuration details utilized by Maven to build the project. It contains default values for most projects. Some of the configurations that can be designated in the POM is the project dependencies, the plugins or goals that can be executed, the build profiles, and so on. Other information such as the project version, description, developers, mailing lists and such can withal be designated.
<?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
   http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>

   <groupId>com.knf.dev</groupId>
   <artifactId>quarkus-mongo-panache-crud</artifactId>
   <version>1.0</version>

   <properties>
      <compiler-plugin.version>3.8.1</compiler-plugin.version>
      <maven.compiler.parameters>true</maven.compiler.parameters>
      <maven.compiler.source>11</maven.compiler.source>
      <maven.compiler.target>11</maven.compiler.target>
      <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
      <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
      <quarkus-plugin.version>2.2.3.Final</quarkus-plugin.version>
     <quarkus.platform.artifact-id>quarkus-universe-bom</quarkus.platform.artifact-id>
      <quarkus.platform.group-id>io.quarkus</quarkus.platform.group-id>
      <quarkus.platform.version>2.2.3.Final</quarkus.platform.version>
      <surefire-plugin.version>2.22.1</surefire-plugin.version>
   </properties>

   <dependencyManagement>
      <dependencies>
         <dependency>
            <groupId>${quarkus.platform.group-id}</groupId>
            <artifactId>${quarkus.platform.artifact-id}</artifactId>
            <version>${quarkus.platform.version}</version>
            <type>pom</type>
            <scope>import</scope>
         </dependency>
      </dependencies>
   </dependencyManagement>

   <dependencies>
      <dependency>
         <groupId>io.quarkus</groupId>
         <artifactId>quarkus-resteasy-jsonb</artifactId>
      </dependency>
      <dependency>
         <groupId>io.quarkus</groupId>
         <artifactId>quarkus-mongodb-panache</artifactId>
      </dependency>
      <dependency>
         <groupId>io.quarkus</groupId>
         <artifactId>quarkus-junit5</artifactId>
         <scope>test</scope>
      </dependency>
      <dependency>
         <groupId>io.rest-assured</groupId>
         <artifactId>rest-assured</artifactId>
         <scope>test</scope>
      </dependency>
   </dependencies>

   <build>
      <plugins>
         <plugin>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-maven-plugin</artifactId>
            <version>${quarkus-plugin.version}</version>
            <executions>
               <execution>
                  <goals>
                     <goal>build</goal>
                  </goals>
               </execution>
            </executions>
         </plugin>
         <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>${compiler-plugin.version}</version>
         </plugin>
         <plugin>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>${surefire-plugin.version}</version>
            <configuration>
               <systemProperties>
<java.util.logging.manager>org.jboss.logmanager.LogManager</java.util.logging.manager>
               </systemProperties>
            </configuration>
         </plugin>
      </plugins>
   </build>

   <profiles>
      <profile>
         <id>native</id>
         <activation>
            <property>
               <name>native</name>
            </property>
         </activation>
         <build>
            <plugins>
               <plugin>
                  <artifactId>maven-failsafe-plugin</artifactId>
                  <version>${surefire-plugin.version}</version>
                  <executions>
                     <execution>
                        <goals>
                           <goal>integration-test</goal>
                           <goal>verify</goal>
                        </goals>
                        <configuration>
                           <systemProperties>
<native.image.path>${project.build.directory}/${project.build.finalName}-runner</native.image.path>
                           </systemProperties>
                        </configuration>
                     </execution>
                  </executions>
               </plugin>
            </plugins>
         </build>
         <properties>
            <quarkus.package.type>native</quarkus.package.type>
         </properties>
      </profile>
   </profiles>
</project>

application.properties

quarkus.mongodb.connection-string = mongodb://localhost:27017
quarkus.mongodb.database = test-user-data
quarkus.http.cors=true
quarkus.http.cors.origins=http://localhost:3000
quarkus.http.cors.methods=GET,PUT,POST,DELETE

Create Document - User.java

package com.knf.dev.model;

import io.quarkus.mongodb.panache.PanacheMongoEntity;
import org.bson.types.ObjectId;

public class User  {

   public ObjectId id;
   private String firstName;
   private String lastName;
   private String emailId;

   public ObjectId getId() {
      return id;
   }

   public void setId(ObjectId id) {
      this.id = id;
   }

   public String getFirstName() {
      return firstName;
   }

   public void setFirstName(String firstName) {
      this.firstName = firstName;
   }

   public String getLastName() {
      return lastName;
   }

   public void setLastName(String lastName) {
      this.lastName = lastName;
   }

   public String getEmailId() {
      return emailId;
   }

   public void setEmailId(String emailId) {
      this.emailId = emailId;
   }

   public User(ObjectId id, String firstName, String lastName, String emailId) {
      this.id = id;
      this.firstName = firstName;
      this.lastName = lastName;
      this.emailId = emailId;
   }

   public User() {
      super();
   }

}

Create UserRepository.java

package com.knf.dev.repository;

import com.knf.dev.model.User;
import io.quarkus.mongodb.panache.PanacheMongoRepository;

import javax.enterprise.context.ApplicationScoped;

@ApplicationScoped
public class UserRepository implements PanacheMongoRepository<User> {

}

Create UserController.java

package com.knf.dev.controller;

import com.knf.dev.model.User;
import com.knf.dev.repository.UserRepository;
import io.quarkus.mongodb.panache.PanacheQuery;
import org.bson.types.ObjectId;

import javax.inject.Inject;
import javax.ws.rs.*;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.util.List;

@Path("/api/users")
public class UserController {

    private final UserRepository userRepository;

    @Inject
    public UserController(UserRepository userRepository) {
        this.userRepository = userRepository;
    }

    @GET
    public List<User> getUsers() {
        return userRepository.listAll();
    }

    @GET
    @Path("/{id}")
    @Produces(MediaType.APPLICATION_JSON)
    public User getUser
            (@PathParam("id") String id) {
        return userRepository.findById(new ObjectId(id));
    }

    @PUT
    @Path("/{id}")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    public void updateUser
            (@PathParam("id") String id, User user) {
        user.setId(new ObjectId(id));
        userRepository.update(user);
    }

    @POST
    public Response addUser(User user) {
        userRepository.persist(user);
        return Response.status(Response.Status.CREATED).build();
    }

    @DELETE
    @Path("/{id}")
    public void deleteUser(@PathParam("id") String id) {
        User user = userRepository.findById(new ObjectId(id));
        userRepository.delete(user);
    }
}

Verify REST APIs

Build application jar file: mvn clean package

Start the application: java -jar quarkus-run.jar

1. Add User

2. Find User

3. Fetch All Users

4. Update User

5. Delete User


PART 2 - UI Development using React JS

Project Structure of Front-End:


package.json

It is used by the npm CLI (and yarn) to identify your project and understand how to handle the project's dependencies. It's the package. json file that enables npm to start your project, run scripts, install dependencies, publish to the NPM registry, and many other useful tasks.

{
"name": "react-frontend",
"version": "0.1.0",
"private": true,
"dependencies": {
"@testing-library/jest-dom": "^4.2.4",
"@testing-library/react": "^9.5.0",
"@testing-library/user-event": "^7.2.1",
"axios": "^0.19.2",
"bootstrap": "^4.5.0",
"react": "^16.13.1",
"react-dom": "^16.13.1",
"react-router-dom": "^5.2.0",
"react-scripts": "3.4.1"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
}
}


CreateUserComponent.jsx


import React, { Component } from 'react'
import UserService from '../services/UserService';
class CreateUserComponent extends Component {
constructor(props) {
super(props)
this.state = {
// step 2
id: this.props.match.params.id,
firstName: '',
lastName: '',
emailId: ''
}
this.changeFirstNameHandler = this.changeFirstNameHandler.bind(this);
this.changeLastNameHandler = this.changeLastNameHandler.bind(this);
this.saveOrUpdateUser = this.saveOrUpdateUser.bind(this);
}
// step 3
componentDidMount() {
// step 4
if (this.state.id === '_add') {
return
} else {
UserService.getUserById(this.state.id).then((res) => {
let user = res.data;
this.setState({
firstName: user.firstName,
lastName: user.lastName,
emailId: user.emailId
});
});
}
}
saveOrUpdateUser = (e) => {
e.preventDefault();
let user = {
firstName: this.state.firstName, lastName: this.state.lastName,
emailId: this.state.emailId
};
console.log('user => ' + JSON.stringify(user));
// step 5
if (this.state.id === '_add') {
UserService.createUser(user).then(res => {
this.props.history.push('/users');
});
} else {
UserService.updateUser(user, this.state.id).then(res => {
this.props.history.push('/users');
});
}
}
changeFirstNameHandler = (event) => {
this.setState({ firstName: event.target.value });
}
changeLastNameHandler = (event) => {
this.setState({ lastName: event.target.value });
}
changeEmailHandler = (event) => {
this.setState({ emailId: event.target.value });
}
cancel() {
this.props.history.push('/users');
}
getTitle() {
if (this.state.id === '_add') {
return <h3 className="text-center">Add User</h3>
} else {
return <h3 className="text-center">Update User</h3>
}
}
render() {
return (
<div>
<br></br>
<div className="container">
<div className="row">
<div className="card col-md-6 offset-md-3 offset-md-3">
{
this.getTitle()
}
<div className="card-body">
<form>
<div className="form-group">
<label> First Name: </label>
<input placeholder="First Name" name="firstName" className="form-control"
value={this.state.firstName} onChange={this.changeFirstNameHandler} />
</div>
<div className="form-group">
<label> Last Name: </label>
<input placeholder="Last Name" name="lastName" className="form-control"
value={this.state.lastName} onChange={this.changeLastNameHandler} />
</div>
<div className="form-group">
<label> Email Id: </label>
<input placeholder="Email Address" name="emailId" className="form-control"
value={this.state.emailId} onChange={this.changeEmailHandler} />
</div>
<button className="btn btn-success" onClick={this.saveOrUpdateUser}>
Save</button>
<button className="btn btn-danger" onClick={this.cancel.bind(this)} style=
{{ marginLeft: "10px" }}>Cancel</button>
</form>
</div>
</div>
</div>
</div>
</div>
)
}
}
export default CreateUserComponent


ListUserComponent.jsx


import React, { Component } from 'react'
import UserService from '../services/UserService'
class ListUserComponent extends Component {
constructor(props) {
super(props)
this.state = {
users: []
}
this.addUser = this.addUser.bind(this);
this.editUser = this.editUser.bind(this);
this.deleteUser = this.deleteUser.bind(this);
}
deleteUser(id) {
UserService.deleteUser(id).then(res => {
this.setState({ users: this.state.users.filter(user =>
user.id !== id) });
});
}
viewUser(id) {
this.props.history.push(`/view-user/${id}`);
}
editUser(id) {
this.props.history.push(`/add-user/${id}`);
}
componentDidMount() {
UserService.getUsers().then((res) => {
this.setState({ users: res.data });
});
}
addUser() {
this.props.history.push('/add-user/_add');
}
render() {
return (
<div>
<h2 className="text-center">Users List</h2>
<div className="row">
<button className="btn btn-primary" onClick={this.addUser}>
Add User</button>
</div>
<br></br>
<div className="row">
<table className="table table-striped table-bordered">
<thead>
<tr>
<th> User First Name</th>
<th> User Last Name</th>
<th> User Email Id</th>
<th> Actions</th>
</tr>
</thead>
<tbody>
{
this.state.users.map(
user =>
<tr key={user.id}>
<td> {user.firstName} </td>
<td> {user.lastName}</td>
<td> {user.emailId}</td>
<td>
<button onClick={() => this.editUser(user.id)} className="btn btn-
info">Update </button>
<button style={{ marginLeft: "10px" }} onClick=
{() => this.deleteUser(user.id)} className="btn btn-danger">Delete </button>
<button style={{ marginLeft: "10px" }} onClick=
{() => this.viewUser(user.id)} className="btn btn-info">View </button>
</td>
</tr>
)
}
</tbody>
</table>
</div>
</div>
)
}
}
export default ListUserComponent


UpdateUserComponent.jsx


import React, { Component } from 'react'
import UserService from '../services/UserService';
class UpdateUserComponent extends Component {
constructor(props) {
super(props)
this.state = {
id: this.props.match.params.id,
firstName: '',
lastName: '',
emailId: ''
}
this.changeFirstNameHandler = this.changeFirstNameHandler.bind(this);
this.changeLastNameHandler = this.changeLastNameHandler.bind(this);
this.updateUser = this.updateUser.bind(this);
}
componentDidMount() {
UserService.getUserById(this.state.id).then((res) => {
let user = res.data;
this.setState({
firstName: user.firstName,
lastName: user.lastName,
emailId: user.emailId
});
});
}
updateUser = (e) => {
e.preventDefault();
let user = {
firstName: this.state.firstName, lastName: this.state.lastName,
emailId: this.state.emailId
};
console.log('user => ' + JSON.stringify(user));
console.log('id => ' + JSON.stringify(this.state.id));
UserService.updateUser(user, this.state.id).then(res => {
this.props.history.push('/users');
});
}
changeFirstNameHandler = (event) => {
this.setState({ firstName: event.target.value });
}
changeLastNameHandler = (event) => {
this.setState({ lastName: event.target.value });
}
changeEmailHandler = (event) => {
this.setState({ emailId: event.target.value });
}
cancel() {
this.props.history.push('/users');
}
render() {
return (
<div>
<br></br>
<div className="container">
<div className="row">
<div className="card col-md-6 offset-md-3 offset-md-3">
<h3 className="text-center">Update User</h3>
<div className="card-body">
<form>
<div className="form-group">
<label> First Name: </label>
<input placeholder="First Name" name="firstName" className="form-control"
value={this.state.firstName} onChange={this.changeFirstNameHandler} />
</div>
<div className="form-group">
<label> Last Name: </label>
<input placeholder="Last Name" name="lastName" className="form-control"
value={this.state.lastName} onChange={this.changeLastNameHandler} />
</div>
<div className="form-group">
<label> Email Id: </label>
<input placeholder="Email Address" name="emailId" className="form-control"
value={this.state.emailId} onChange={this.changeEmailHandler} />
</div>
<button className="btn btn-success" onClick={this.updateUser}>Save</button>
<button className="btn btn-danger" onClick={this.cancel.bind(this)} style=
{{ marginLeft: "10px" }}>Cancel</button>
</form>
</div>
</div>
</div>
</div>
</div>
)
}
}
export default UpdateUserComponent



ViewUserComponent.jsx


import React, { Component } from 'react'
import UserService from '../services/UserService'
class ViewUserComponent extends Component {
constructor(props) {
super(props)
this.state = {
id: this.props.match.params.id,
user: {}
}
}
componentDidMount() {
UserService.getUserById(this.state.id).then(res => {
this.setState({ user: res.data });
})
}
render() {
return (
<div>
<br></br>
<div className="card col-md-6 offset-md-3">
<h3 className="text-center"> View User Details</h3>
<div className="card-body">
<div className="row">
<label> User First Name: </label>
<div> {this.state.user.firstName}</div>
</div>
<div className="row">
<label> User Last Name: </label>
<div> {this.state.user.lastName}</div>
</div>
<div className="row">
<label> User Email ID: </label>
<div> {this.state.user.emailId}</div>
</div>
</div>
</div>
</div>
)
}
}
export default ViewUserComponent


UserService.js


import axios from 'axios';
const USER_API_BASE_URL = "http://localhost:8080/api/users";
class UserService {
getUsers() {
return axios.get(USER_API_BASE_URL);
}
createUser(user) {
return axios.post(USER_API_BASE_URL, user);
}
getUserById(userId) {
return axios.get(USER_API_BASE_URL + '/' + userId);
}
updateUser(user, userId) {
return axios.put(USER_API_BASE_URL + '/' + userId, user);
}
deleteUser(userId) {
return axios.delete(USER_API_BASE_URL + '/' + userId);
}
}
export default new UserService()


Run


npm install 


 npm start



Download the source code: 

git clone:


More Quarkus Related topics,

Kotlin + Quarkus

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Java - Blowfish Encryption and decryption Example

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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.IllegalBlockSizeExc
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Spring boot video streaming example-HTML5

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

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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 bucket Fr
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