Customer order application project

spring-boot-modules/spring-boot-microservices/README.md

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+--------------------------------- CustomerOrderApp installation steps----------------------------------
+
+1. Clone or download sample project from GitHub repo: https://github.com/eugenp/tutorials/tree/master/spring-boot-modules/customer-order-app
+2. Unzip project folder to local disk for example to: C:/baeldung-tutorials/customer-order-app
+3. Run `mvn clean install -DskipTests=true`
+4. Navigate to payment-service/payment-server module folder and type `mvn spring-boot:run`
+5. Open another CMD PROMPT window.
+   Navigate to order-service/order-server module folder and type `mvn spring-boot:run`
+6. Open another CMD PROMPT window. 
+   Navigate to customer-service module folder and type `mvn spring-boot:run`
+
+7. Launch the Postman application from your machine and import the collection of POST requests located in the _postman_ folder
+

spring-boot-modules/spring-boot-microservices/customer-service/.gitignore

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+#https://github.com/spring-projects/spring-boot/blob/master/.gitignore
+
+*#
+*.iml
+*.ipr
+*.iws
+*.jar
+*.sw?
+*~
+.#*
+.*.md.html
+.DS_Store
+.classpath
+.factorypath
+.gradle
+.idea
+.metadata
+.project
+.recommenders
+.settings
+.springBeans
+/build
+/code
+MANIFEST.MF
+_site/
+activemq-data
+bin
+build
+build.log
+dependency-reduced-pom.xml
+dump.rdb
+interpolated*.xml
+lib/
+manifest.yml
+overridedb.*
+target
+transaction-logs
+.flattened-pom.xml
+secrets.yml
+.gradletasknamecache
+.sts4-cache

spring-boot-modules/spring-boot-microservices/customer-service/pom.xml

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+<?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">
+    <parent>
+        <artifactId>CustomerOrderApp</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.baeldung.customerservice</groupId>
+    <artifactId>customer-service</artifactId>
+    <packaging>jar</packaging>
+
+    <properties>
+        <java.version>1.8</java.version>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <version>2.3.0.RELEASE</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-json</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-configuration-processor</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.baeldung.orderservice</groupId>
+            <artifactId>order-client</artifactId>
+            <version>1.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-maven-plugin</artifactId>
+                    <executions>
+                        <execution>
+                            <goals>
+                                <goal>repackage</goal>
+                            </goals>
+                            <configuration>
+                                <classifier>exec</classifier>
+                            </configuration>
+                        </execution>
+                    </executions>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+</project>

spring-boot-modules/spring-boot-microservices/customer-service/src/main/java/com/baeldung/customerservice/Customer.java

@@ -0,0 +1,14 @@
+package com.baeldung.customerservice;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@Data
+@AllArgsConstructor
+public class Customer {
+
+    private int id;
+    private String firstName;
+    private String lastName;
+
+}

spring-boot-modules/spring-boot-microservices/customer-service/src/main/java/com/baeldung/customerservice/CustomerApplication.java

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+package com.baeldung.customerservice;
+
+import com.baeldung.orderservice.client.OrderClient;
+import com.baeldung.orderservice.client.OrderClientImpl;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * Spring Boot application starter class
+ */
+@SpringBootApplication
+public class CustomerApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(CustomerApplication.class, args);
+    }
+
+    @Bean
+    public OrderClient getOrderClient() {
+
+        return new OrderClientImpl(new RestTemplateBuilder());
+    }
+
+}

spring-boot-modules/spring-boot-microservices/customer-service/src/main/java/com/baeldung/customerservice/CustomerService.java

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+package com.baeldung.customerservice;
+
+import com.baeldung.orderservice.client.OrderClient;
+import com.baeldung.orderservice.client.OrderDTO;
+import com.baeldung.orderservice.client.OrderResponse;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+
+@RestController
+public class CustomerService {
+
+    @Autowired
+    private OrderClient orderClient;
+
+    private List<Customer> customers = Arrays.asList(
+
+            new Customer(1, "John", "Smith"),
+            new Customer(2, "Deny", "Dominic"));
+
+
+    @GetMapping
+    public List<Customer> getAllCustomers() {
+        return customers;
+    }
+
+    @GetMapping("/{id}")
+    public Customer getCustomerById(@PathVariable int id) {
+        return customers.stream()
+                .filter(customer -> customer.getId() == id)
+                .findFirst()
+                .orElseThrow(IllegalArgumentException::new);
+    }
+
+
+    @PostMapping(value = "/order")
+    public String sendOrder(@RequestBody Map<String, Object> body) {
+
+        OrderDTO dto = new OrderDTO();
+        dto.setCustomerId((Integer) body.get("customerId"));
+        dto.setItemId((String) body.get("itemId"));
+
+        OrderResponse response = orderClient.order(dto);
+
+        return response.getStatus();
+    }
+
+}

spring-boot-modules/spring-boot-microservices/customer-service/src/main/resources/application.properties

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+#Spring Boot server configuration
+server.servlet.context-path=/customer-service
+server.port=8001
+

spring-boot-modules/spring-boot-microservices/customer-service/src/test/java/com/baeldung/customerservice/CustomerServiceTest.java

@@ -0,0 +1,33 @@
+package com.baeldung.customerservice;
+
+import com.baeldung.orderservice.client.OrderClient;
+import com.baeldung.orderservice.client.OrderDTO;
+import com.baeldung.orderservice.client.OrderResponse;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringBootTest(classes = CustomerApplication.class)
+public class CustomerServiceTest {
+
+    @Autowired
+    private OrderClient orderClient;
+
+    @Test
+    public void testAddOrderSuccess(){
+
+
+        OrderDTO dto = new OrderDTO(2,"A152");
+
+        OrderResponse response = orderClient.order(dto);
+
+        Assert.assertNotNull("Order Id not generated", response.getOrderId());
+        Assert.assertEquals("A152", response.getProductId());
+        Assert.assertEquals("CREATED", response.getStatus());
+    }
+
+}

spring-boot-modules/spring-boot-microservices/customer-service/src/test/resources/application.properties

@@ -0,0 +1,2 @@
+local.server.port=8001
+server.servlet.context-path=/customer-service

spring-boot-modules/spring-boot-microservices/order-service/.gitignore

@@ -0,0 +1,41 @@
+#https://github.com/spring-projects/spring-boot/blob/master/.gitignore
+
+*#
+*.iml
+*.ipr
+*.iws
+*.jar
+*.sw?
+*~
+.#*
+.*.md.html
+.DS_Store
+.classpath
+.factorypath
+.gradle
+.idea
+.metadata
+.project
+.recommenders
+.settings
+.springBeans
+/build
+/code
+MANIFEST.MF
+_site/
+activemq-data
+bin
+build
+build.log
+dependency-reduced-pom.xml
+dump.rdb
+interpolated*.xml
+lib/
+manifest.yml
+overridedb.*
+target
+transaction-logs
+.flattened-pom.xml
+secrets.yml
+.gradletasknamecache
+.sts4-cache

spring-boot-modules/spring-boot-microservices/order-service/order-client/pom.xml

@@ -0,0 +1,17 @@
+<?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>
+    <parent>
+        <!-- Your own application should inherit from spring-boot-starter-parent -->
+        <groupId>com.baeldung.orderservice</groupId>
+        <artifactId>order-service</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <artifactId>order-client</artifactId>
+    <groupId>com.baeldung.orderservice</groupId>
+    <name>order-client</name>
+    <description>Order service client module</description>
+    <url>http://projects.spring.io/spring-boot/</url>
+
+</project>

spring-boot-modules/spring-boot-microservices/order-service/order-client/src/main/java/com/baeldung/orderservice/client/OrderClient.java

@@ -0,0 +1,6 @@
+package com.baeldung.orderservice.client;
+
+public interface OrderClient {
+
+    OrderResponse order(OrderDTO orderDTO);
+}

spring-boot-modules/spring-boot-microservices/order-service/order-client/src/main/java/com/baeldung/orderservice/client/OrderClientImpl.java

@@ -0,0 +1,35 @@
+package com.baeldung.orderservice.client;
+
+import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestTemplate;
+
+
+@Component
+public class OrderClientImpl implements OrderClient {
+
+    private RestTemplate restTemplate;
+
+    public OrderClientImpl(RestTemplateBuilder builder) {
+
+        this.restTemplate = builder.build();
+    }
+
+    @Override
+    public OrderResponse order(OrderDTO orderDTO) {
+
+        String serviceUrl = "http://localhost:8002/order-service";
+        HttpHeaders headers = new HttpHeaders();
+        headers.setContentType(MediaType.APPLICATION_JSON);
+
+        HttpEntity<OrderDTO> request = new HttpEntity<>(orderDTO, headers);
+
+        OrderResponse orderResponse = restTemplate.postForObject(serviceUrl + "/create", request, OrderResponse.class);
+
+        return orderResponse;
+
+    }
+}

spring-boot-modules/spring-boot-microservices/order-service/order-client/src/main/java/com/baeldung/orderservice/client/OrderDTO.java

@@ -0,0 +1,16 @@
+package com.baeldung.orderservice.client;
+
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class OrderDTO {
+
+    private int customerId;
+    private String itemId;
+
+}

spring-boot-modules/spring-boot-microservices/order-service/order-client/src/main/java/com/baeldung/orderservice/client/OrderResponse.java

@@ -0,0 +1,15 @@
+package com.baeldung.orderservice.client;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class OrderResponse {
+
+    private int orderId;
+    private String productId;
+    private String status;
+}

spring-boot-modules/spring-boot-microservices/order-service/order-client/src/main/resources/application.properties

@@ -0,0 +1 @@
+server.port=8002

spring-boot-modules/spring-boot-microservices/order-service/order-server/pom.xml

@@ -0,0 +1,29 @@
+<?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">
+    <parent>
+        <artifactId>order-service</artifactId>
+        <groupId>com.baeldung.orderservice</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.baeldung.orderservice</groupId>
+    <artifactId>order-server</artifactId>
+    <dependencies>
+        <dependency>
+            <groupId>com.baeldung.orderservice</groupId>
+            <artifactId>order-client</artifactId>
+            <version>1.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.baeldung.paymentservice</groupId>
+            <artifactId>payment-client</artifactId>
+            <version>1.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+
+</project>

spring-boot-modules/spring-boot-microservices/order-service/order-server/src/main/java/com/baeldung/orderservice/Order.java

@@ -0,0 +1,18 @@
+package com.baeldung.orderservice;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Order {
+
+    private Integer id;
+    private Integer customerId;
+    private String itemId;
+    private String date;
+
+}

spring-boot-modules/spring-boot-microservices/order-service/order-server/src/main/java/com/baeldung/orderservice/OrderApplication.java

@@ -0,0 +1,24 @@
+package com.baeldung.orderservice;
+
+import com.baeldung.paymentservice.PaymentClient;
+import com.baeldung.paymentservice.PaymentClientImpl;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * Spring Boot application starter class
+ */
+@SpringBootApplication
+public class OrderApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(OrderApplication.class, args);
+    }
+
+    @Bean
+    public PaymentClient getPaymentClient() {
+
+        return new PaymentClientImpl(new RestTemplateBuilder());
+    }
+}

spring-boot-modules/spring-boot-microservices/order-service/order-server/src/main/java/com/baeldung/orderservice/OrderService.java

@@ -0,0 +1,75 @@
+package com.baeldung.orderservice;
+
+import com.baeldung.orderservice.client.OrderDTO;
+import com.baeldung.orderservice.client.OrderResponse;
+import com.baeldung.paymentservice.PaymentClient;
+import com.baeldung.paymentservice.PaymentDTO;
+import com.baeldung.paymentservice.PaymentResponse;
+import org.apache.commons.lang.time.DateFormatUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+
+import java.util.Arrays;
+import java.util.Date;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+@RestController
+public class OrderService {
+
+    @Autowired
+    private PaymentClient paymentClient;
+
+    private List<Order> orders = Arrays.asList(
+
+            new Order(1, 1, "A101", "2020/02/14"),
+            new Order(2, 1, "A101", "2020/02/14"),
+            new Order(3, 2, "A150", "2020/02/17"));
+
+    @GetMapping
+    public List<Order> getAllOrders() {
+        return orders;
+    }
+
+    @GetMapping("/{id}")
+    public List<Order> getOrdersByCustomer(@PathVariable int id) {
+        return orders.stream()
+                .filter(order -> order.getCustomerId() == id).collect(Collectors.toList());
+    }
+
+    @PostMapping("/create")
+    public OrderResponse createOrder(@RequestBody OrderDTO request) {
+
+        int lastIndex = orders.size();
+        Order order = new Order();
+        order.setId(lastIndex + 1);
+        order.setCustomerId(request.getCustomerId());
+        order.setItemId(request.getItemId());
+        String date = DateFormatUtils.format(new Date(), "yyyy/MM/dd");
+        order.setDate(date);
+
+        return new OrderResponse(order.getId(), order.getItemId(), "CREATED");
+    }
+
+    @PostMapping("/pay/{orderNumber}")
+    public PaymentResponse sendPayment(@PathVariable String orderNumber, @RequestBody Map<String, Object> body) {
+
+        PaymentDTO dto = new PaymentDTO();
+        dto.setFirstName((String) body.get("firstName"));
+        dto.setLastName((String) body.get("lastName"));
+        dto.setCardNumber((String) body.get("cardNumber"));
+        dto.setAmount((Double) body.get("amount"));
+        dto.setCurrency((String) body.get("currency"));
+
+        PaymentResponse paymentResponse = paymentClient.pay(orderNumber, dto);
+
+        return paymentResponse;
+
+    }
+}

spring-boot-modules/spring-boot-microservices/order-service/order-server/src/main/resources/application.properties

@@ -0,0 +1,4 @@
+#Spring Boot server configuration
+server.servlet.context-path=/order-service
+server.port=8002
+

spring-boot-modules/spring-boot-microservices/order-service/order-server/src/test/java/com/baeldung/orderservice/OrderServiceTest.java

@@ -0,0 +1,35 @@
+package com.baeldung.orderservice;
+
+import com.baeldung.paymentservice.PaymentClient;
+import com.baeldung.paymentservice.PaymentDTO;
+import com.baeldung.paymentservice.PaymentResponse;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringBootTest(classes = OrderApplication.class)
+public class OrderServiceTest {
+
+    @Autowired
+    private PaymentClient paymentClient;
+
+
+    @Test
+    public void testSendPaySuccess(){
+
+
+        PaymentDTO dto = new PaymentDTO("Sasa","Milenkovic","4260-6720-3283-7081",150.0,"USD");
+
+        PaymentResponse response = paymentClient.pay("A152", dto);
+
+        Assert.assertNotNull("Payment Id not generated", response.getPaymentId());
+        Assert.assertEquals("CREDITCARD", response.getPaymentMethod());
+        Assert.assertEquals("Sasa Milenkovic", response.getCustomerFullName());
+        Assert.assertEquals(new Double(150.0), response.getAmount());
+        Assert.assertEquals("USD", response.getCurrency());
+    }
+}

spring-boot-modules/spring-boot-microservices/order-service/pom.xml

@@ -0,0 +1,108 @@
+<?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">
+    <parent>
+        <artifactId>CustomerOrderApp</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.baeldung.orderservice</groupId>
+    <artifactId>order-service</artifactId>
+    <packaging>pom</packaging>
+    <modules>
+        <module>order-client</module>
+        <module>order-server</module>
+    </modules>
+
+    <properties>
+        <java.version>1.8</java.version>
+        <commons-lang.version>2.6</commons-lang.version>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <orderservice.mainclass>com.baeldung.orderservice.OrderApplication</orderservice.mainclass>
+    </properties>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <version>2.3.0.RELEASE</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>commons-lang</groupId>
+            <artifactId>commons-lang</artifactId>
+            <version>${commons-lang.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-json</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-configuration-processor</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-test-autoconfigure</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-maven-plugin</artifactId>
+                    <configuration>
+                        <mainClass>${orderservice.mainclass}</mainClass>
+                    </configuration>
+                    <executions>
+                        <execution>
+                            <goals>
+                                <goal>repackage</goal>
+                            </goals>
+                            <configuration>
+                                <classifier>exe</classifier>
+                            </configuration>
+                        </execution>
+                        <execution>
+                            <id>start-application</id>
+                            <configuration>
+                                <mainClass>com.baeldung.orderservice.OrderApplication</mainClass>
+                                <classesDirectory>../order-server/target/classes</classesDirectory>
+                            </configuration>
+                            <goals>
+                                <goal>start</goal>
+                            </goals>
+                        </execution>
+                    </executions>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+</project>

spring-boot-modules/spring-boot-microservices/payment-service/.gitignore

@@ -0,0 +1,41 @@
+#https://github.com/spring-projects/spring-boot/blob/master/.gitignore
+
+*#
+*.iml
+*.ipr
+*.iws
+*.jar
+*.sw?
+*~
+.#*
+.*.md.html
+.DS_Store
+.classpath
+.factorypath
+.gradle
+.idea
+.metadata
+.project
+.recommenders
+.settings
+.springBeans
+/build
+/code
+MANIFEST.MF
+_site/
+activemq-data
+bin
+build
+build.log
+dependency-reduced-pom.xml
+dump.rdb
+interpolated*.xml
+lib/
+manifest.yml
+overridedb.*
+target
+transaction-logs
+.flattened-pom.xml
+secrets.yml
+.gradletasknamecache
+.sts4-cache

spring-boot-modules/spring-boot-microservices/payment-service/payment-client/pom.xml

@@ -0,0 +1,17 @@
+<?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>
+    <parent>
+        <artifactId>payment-service</artifactId>
+        <groupId>com.baeldung.paymentservice</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+
+    <groupId>com.baeldung.paymentservice</groupId>
+    <artifactId>payment-client</artifactId>
+
+
+</project>

spring-boot-modules/spring-boot-microservices/payment-service/payment-client/src/main/java/com.baeldung.paymentservice/PaymentClient.java

@@ -0,0 +1,6 @@
+package com.baeldung.paymentservice;
+
+public interface PaymentClient {
+
+    PaymentResponse pay (String orderNumber, PaymentDTO paymentDTO);
+}

spring-boot-modules/spring-boot-microservices/payment-service/payment-client/src/main/java/com.baeldung.paymentservice/PaymentClientImpl.java

@@ -0,0 +1,35 @@
+package com.baeldung.paymentservice;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestTemplate;
+
+@Component
+public class PaymentClientImpl implements PaymentClient {
+
+    private RestTemplate restTemplate;
+
+    public PaymentClientImpl(RestTemplateBuilder builder) {
+
+        this.restTemplate = builder.build();
+    }
+
+    @Override
+    public PaymentResponse pay(String orderNumber, PaymentDTO paymentDTO) {
+
+        String serviceUrl = "http://localhost:8003/payment-service";
+        HttpHeaders headers = new HttpHeaders();
+        headers.setContentType(MediaType.APPLICATION_JSON);
+
+        HttpEntity<PaymentDTO> request = new HttpEntity<>(paymentDTO, headers);
+
+        PaymentResponse paymentResponse = restTemplate.postForObject(serviceUrl + "/pay/" + orderNumber, request, PaymentResponse.class);
+
+        return paymentResponse;
+
+    }
+}

spring-boot-modules/spring-boot-microservices/payment-service/payment-client/src/main/java/com.baeldung.paymentservice/PaymentDTO.java

@@ -0,0 +1,17 @@
+package com.baeldung.paymentservice;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class PaymentDTO {
+
+    private String firstName;
+    private String lastName;
+    private String cardNumber;
+    private double amount;
+    private String currency;
+}

spring-boot-modules/spring-boot-microservices/payment-service/payment-client/src/main/java/com.baeldung.paymentservice/PaymentResponse.java

@@ -0,0 +1,18 @@
+package com.baeldung.paymentservice;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class PaymentResponse{
+
+    private String paymentId;
+    private String paymentMethod;
+    private String customerFullName;
+    private Double amount;
+    private String currency;
+
+}

spring-boot-modules/spring-boot-microservices/payment-service/payment-server/pom.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<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>
+
+    <parent>
+        <groupId>com.baeldung.paymentservice</groupId>
+        <artifactId>payment-service</artifactId>
+        <version>1.0-SNAPSHOT</version> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.baeldung.paymentservice</groupId>
+    <artifactId>payment-server</artifactId>
+    <name>payment-server</name>
+    <dependencies>
+    <dependency>
+        <groupId>com.baeldung.paymentservice</groupId>
+        <artifactId>payment-client</artifactId>
+        <version>1.0-SNAPSHOT</version>
+        <scope>compile</scope>
+    </dependency>
+    </dependencies>
+</project>

spring-boot-modules/spring-boot-microservices/payment-service/payment-server/src/main/java/com/baeldung/paymentservice/CardValidator.java

@@ -0,0 +1,31 @@
+package com.baeldung.paymentservice;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class CardValidator {
+
+    public static boolean validate(String cardNumber){
+
+        boolean isValid = false;
+
+        String regex = "^(?:(?<visa>4[0-9]{12}(?:[0-9]{3})?)|" +
+                "(?<mastercard>5[1-5][0-9]{14})|" +
+                "(?<discover>6(?:011|5[0-9]{2})[0-9]{12})|" +
+                "(?<amex>3[47][0-9]{13})|" +
+                "(?<diners>3(?:0[0-5]|[68][0-9])?[0-9]{11})|" +
+                "(?<jcb>(?:2131|1800|35[0-9]{3})[0-9]{11}))$";
+
+
+        Pattern pattern = Pattern.compile(regex);
+        cardNumber = cardNumber.replaceAll("-", "");
+        Matcher matcher = pattern.matcher(cardNumber);
+
+        if(matcher.matches()){
+
+            isValid = true;
+        }
+
+        return isValid;
+    }
+}

spring-boot-modules/spring-boot-microservices/payment-service/payment-server/src/main/java/com/baeldung/paymentservice/Payment.java

@@ -0,0 +1,19 @@
+package com.baeldung.paymentservice;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Payment {
+
+    private String paymentId;
+    private String paymentMethod;
+    private String customerFullName;
+    private double amount;
+    private String currency;
+
+}
+

spring-boot-modules/spring-boot-microservices/payment-service/payment-server/src/main/java/com/baeldung/paymentservice/PaymentApplication.java

@@ -0,0 +1,15 @@
+package com.baeldung.paymentservice;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ *
+ * Spring Boot application starter class
+ */
+@SpringBootApplication
+public class PaymentApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(PaymentApplication.class, args);
+    }
+}

spring-boot-modules/spring-boot-microservices/payment-service/payment-server/src/main/java/com/baeldung/paymentservice/PaymentService.java

@@ -0,0 +1,39 @@
+package com.baeldung.paymentservice;
+
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.smartcardio.CardException;
+import java.util.UUID;
+
+
+@RestController
+public class PaymentService {
+
+
+    @PostMapping("/pay/{orderNum}")
+    public PaymentResponse createPayment(@PathVariable String orderNum, @RequestBody PaymentDTO paymentDTO) {
+
+            Payment payment = new Payment();
+            payment.setPaymentId(UUID.randomUUID().toString().replace("-", ""));
+            String firstName = paymentDTO.getFirstName();
+            String lastName = paymentDTO.getLastName();
+            payment.setCustomerFullName(firstName + " " + lastName);
+            String cardNumber = paymentDTO.getCardNumber();
+
+            if(CardValidator.validate(cardNumber)){
+                payment.setPaymentMethod("CREDITCARD");
+            } else try {
+                throw new CardException("Card with number:"+ cardNumber + " is invalid");
+            } catch (CardException e) {
+                e.printStackTrace();
+            }
+            payment.setAmount(paymentDTO.getAmount());
+            payment.setCurrency(paymentDTO.getCurrency());
+
+            return new PaymentResponse(payment.getPaymentId(), payment.getPaymentMethod(), payment.getCustomerFullName(), payment.getAmount(), payment.getCurrency());
+
+    }
+}

spring-boot-modules/spring-boot-microservices/payment-service/payment-server/src/main/resources/application.properties

@@ -0,0 +1,3 @@
+#Spring Boot server configuration
+server.servlet.context-path=/payment-service
+server.port=8003

spring-boot-modules/spring-boot-microservices/payment-service/pom.xml

@@ -0,0 +1,110 @@
+<?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">
+    <parent>
+        <artifactId>CustomerOrderApp</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.baeldung.paymentservice</groupId>
+    <artifactId>payment-service</artifactId>
+    <packaging>pom</packaging>
+    <modules>
+        <module>payment-client</module>
+        <module>payment-server</module>
+    </modules>
+
+    <properties>
+        <java.version>1.8</java.version>
+        <commons-lang.version>2.6</commons-lang.version>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <paymentservice.mainclass>com.baeldung.paymentservice.PaymentApplication</paymentservice.mainclass>
+    </properties>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <version>2.3.0.RELEASE</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <dependencies>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>commons-lang</groupId>
+            <artifactId>commons-lang</artifactId>
+            <version>${commons-lang.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-json</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-test-autoconfigure</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-maven-plugin</artifactId>
+                    <configuration>
+                       <mainClass>${paymentservice.mainclass}</mainClass>
+                    </configuration>
+                    <executions>
+                        <execution>
+                            <goals>
+                                <goal>repackage</goal>
+                            </goals>
+                            <configuration>
+                                <classifier>exe</classifier>
+                            </configuration>
+                        </execution>
+                        <execution>
+                            <id>start-application</id>
+                            <configuration>
+                                <mainClass>com.baeldung.paymentservice.PaymentApplication</mainClass>
+                                <classesDirectory>../payment-server/target/classes</classesDirectory>
+                            </configuration>
+                            <goals>
+                                <goal>start</goal>
+                            </goals>
+                        </execution>
+                    </executions>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+</project>

spring-boot-modules/spring-boot-microservices/pom.xml

@@ -0,0 +1,46 @@
+<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/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.baeldung</groupId>
+  <artifactId>CustomerOrderApp</artifactId>
+  <packaging>pom</packaging>
+  <version>1.0-SNAPSHOT</version>
+  <name>CustomerOrderApp</name>
+  <url>http://maven.apache.org</url>
+  
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.3.0.RELEASE</version>
+		<relativePath/> <!-- lookup parent from repository -->
+    </parent>
+ 
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+    </properties>
+	
+	<modules>
+        <module>customer-service</module>
+        <module>order-service</module>
+        <module>payment-service</module>
+    </modules>
+     
+	<dependencies>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-autoconfigure</artifactId>
+        </dependency>
+    </dependencies>
+</project>

spring-boot-modules/spring-boot-microservices/postman/customer-order.postman_collection

@@ -0,0 +1,87 @@
+{
+	"info": {
+		"_postman_id": "92594398-49cc-4a7c-b44f-1037307afbd3",
+		"name": "postman-requests",
+		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json"
+	},
+	"item": [
+		{
+			"name": "Crete new Customer order",
+			"request": {
+				"method": "POST",
+				"header": [
+					{
+						"key": "Content-Type",
+						"value": "multipart/form-data",
+						"type": "text",
+						"disabled": true
+					},
+					{
+						"key": "Accept-Charset",
+						"value": "utf-8",
+						"type": "text",
+						"disabled": true
+					},
+					{
+						"key": "boundary",
+						"value": "nAp4nMEt-BuGuuLlq-6fnASQErGjSamaG",
+						"type": "text",
+						"disabled": true
+					}
+				],
+				"body": {
+					"mode": "raw",
+					"raw": "{\n   \"customerId\":2,\n   \"itemId\":\"A152\"\n}",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": {
+					"raw": "http://localhost:8001/customer-service/order",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8001",
+					"path": [
+						"customer-service",
+						"order"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Send Order for payment",
+			"request": {
+				"method": "POST",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\n\t\n\"firstName\":\"John\",\n\"lastName\":\"Smith\",\n\"cardNumber\":\"4260-6720-3283-7081\",\n\"amount\":150.0,\n\"currency\":\"USD\"\n\t\n\t\n}",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": {
+					"raw": "localhost:8002/order-service/pay/A152",
+					"host": [
+						"localhost"
+					],
+					"port": "8002",
+					"path": [
+						"order-service",
+						"pay",
+						"A152"
+					]
+				}
+			},
+			"response": []
+		}
+	],
+	"protocolProfileBehavior": {}
+}

spring-boot-modules/spring-boot-microservices/src/main/java/com/baeldung/CustomerOrderApp.java

@@ -0,0 +1,23 @@
+package com.baeldung;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.ComponentScan;
+
+/**
+ * Customer Order Spring Boot Main Application
+ *
+ * */
+
+@SpringBootApplication
+@ComponentScan(basePackages = "com.baeldung.*")
+public class CustomerOrderApp
+{
+
+    public static void main( String[] args )
+    {
+
+        SpringApplication.run(CustomerOrderApp.class,args);
+
+    }
+}