BAEL-4842 - Use React and Spring Boot to Build a Simple CRUD App

Initial source module for the article

spring-boot-modules/spring-boot-react/src/main/java/com/baeldung/springbootreact/BoostrapInitialData.java

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+package com.baeldung.springbootreact;
+
+import com.baeldung.springbootreact.domain.Client;
+import com.baeldung.springbootreact.repository.ClientRepository;
+import com.github.javafaker.Faker;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+
+import java.util.Locale;
+
+@Component
+public class BoostrapInitialData implements CommandLineRunner {
+
+    private final ClientRepository clientRepository;
+    private final Faker faker = new Faker(Locale.getDefault());
+
+    public BoostrapInitialData(ClientRepository clientRepository) {
+        this.clientRepository = clientRepository;
+    }
+
+    @Override
+    public void run(String... args) {
+        for (int i = 0; i < 10; i++) {
+            clientRepository.save(new Client(faker.name().fullName(), faker.internet().emailAddress()));
+        }
+    }
+}

spring-boot-modules/spring-boot-react/src/main/java/com/baeldung/springbootreact/SpringBootReactApplication.java

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+package com.baeldung.springbootreact;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringBootReactApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(SpringBootReactApplication.class, args);
+    }
+}

spring-boot-modules/spring-boot-react/src/main/java/com/baeldung/springbootreact/controller/ClientsController.java

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+package com.baeldung.springbootreact.controller;
+
+import com.baeldung.springbootreact.domain.Client;
+import com.baeldung.springbootreact.repository.ClientRepository;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.List;
+
+@RestController
+@RequestMapping("/clients")
+public class ClientsController {
+
+    private final ClientRepository clientRepository;
+
+    public ClientsController(ClientRepository clientRepository) {
+        this.clientRepository = clientRepository;
+    }
+
+    @GetMapping
+    public List getClients() {
+        return clientRepository.findAll();
+    }
+
+    @GetMapping("/{id}")
+    public Client getClient(@PathVariable Long id) {
+        return clientRepository.findById(id).orElseThrow(RuntimeException::new);
+    }
+
+    @PostMapping
+    public ResponseEntity createClient(@RequestBody Client client) throws URISyntaxException {
+        Client savedClient = clientRepository.save(client);
+        return ResponseEntity.created(new URI("/clients/" + savedClient.getId())).body(savedClient);
+    }
+
+    @PutMapping("{id}")
+    public ResponseEntity updateClient(@PathVariable Long id, @RequestBody Client client) {
+        Client currentClient = clientRepository.findById(id).orElseThrow(RuntimeException::new);
+        currentClient.setName(client.getName());
+        currentClient.setEmail(client.getEmail());
+        currentClient = clientRepository.save(client);
+
+        return ResponseEntity.ok(currentClient);
+    }
+
+    @DeleteMapping("/{id}")
+    public ResponseEntity deleteClient(@PathVariable Long id) {
+        clientRepository.deleteById(id);
+        return ResponseEntity.ok().build();
+    }
+
+}

spring-boot-modules/spring-boot-react/src/main/java/com/baeldung/springbootreact/domain/Client.java

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+package com.baeldung.springbootreact.domain;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "client")
+public class Client {
+
+    @Id
+    @GeneratedValue
+    private Long id;
+
+    private String name;
+    private String email;
+
+    public Client() {
+    }
+
+    public Client(String name, String email) {
+        this.name = name;
+        this.email = email;
+    }
+
+    public Client(Long id, String name, String email) {
+        this.id = id;
+        this.name = name;
+        this.email = email;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+}

spring-boot-modules/spring-boot-react/src/main/java/com/baeldung/springbootreact/repository/ClientRepository.java

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+package com.baeldung.springbootreact.repository;
+
+import com.baeldung.springbootreact.domain.Client;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface ClientRepository extends JpaRepository<Client, Long> {
+}