given i want to creat poc project like this 

### **Absolutely! Building a Proof of Concept (PoC) for a Synchronous Request-Response Communication Pattern Between Two Microservices Within an E-commerce Architecture**

Building a proof of concept (PoC) for a synchronous Request-Response communication pattern between two microservices within an e-commerce architecture is a great way to understand and implement cloud-native principles. Below is a comprehensive roadmap to guide you through this process using Spring Boot, Spring Cloud, GitHub Actions, and Docker.

### **Roadmap Overview**

1. **Define the Microservices and Their Responsibilities**
2. **Set Up the Development Environment**
3. **Create Individual Microservices**
    - Service A (Client)
    - Service B (Server)
4. **Implement Synchronous Request-Response Communication**
5. **Containerize Microservices with Docker**
6. **Set Up CI/CD Pipeline with GitHub Actions**
7. **Testing and Validation**
8. **Deployment and Monitoring**

**. Define the Microservices and Their Responsibilities**

Before diving into development, clearly define the two microservices and their respective business logic within an e-commerce context. For this PoC, let's consider:

**Service A: Order Service (Client)**

- **Responsibility**: Handles customer orders.
- **Business Logic**: When a new order is placed, it needs to verify product availability by communicating with the Inventory Service.

**Service B: Inventory Service (Server)**

- **Responsibility**: Manages product inventory.
- **Business Logic**: Provides product availability status when queried by the Order Service.

**Diagram:**

**Diagram:**

```
Order Service (Service A) <---- synchronous request-response ----> Inventory Service (Service B)

```

---

### **2. Set Up the Development Environment**

Ensure you have the necessary tools and environments set up:

- Java Development Kit (JDK) 17+
- Spring Boot and Spring Cloud
- Maven or Gradle
- Docker
- Git and GitHub Account
- Integrated Development Environment (IDE) like IntelliJ IDEA or VS Code
- Postman or cURL for API testing

### **3. Create Individual Microservices**

### **A. Service B: Inventory Service (Server)**

**Initialize Spring Boot Project:**
Use Spring Initializr with the following dependencies:

- Spring Web
- Spring Boot Actuator
- Spring Cloud Config Client (if using config server)
- Spring Data JPA (with H2 Database for simplicity)

like this 

```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-parent</artifactId>
		<version>3.3.5</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.amir</groupId>
	<artifactId>inventory-service</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>inventory-service</name>
	<description>Demo project for Inventory Service </description>
	<url/>
	<licenses>
		<license/>
	</licenses>
	<developers>
		<developer/>
	</developers>
	<scm>
		<connection/>
		<developerConnection/>
		<tag/>
		<url/>
	</scm>
	<properties>
		<java.version>17</java.version>
		<spring-cloud.version>2023.0.3</spring-cloud.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-config</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-jpa</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
			<scope>runtime</scope>
			<optional>true</optional>
		</dependency>
		<dependency>
			<groupId>com.h2database</groupId>
			<artifactId>h2</artifactId>
			<scope>runtime</scope>
		</dependency>
		<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>
	</dependencies>
	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-dependencies</artifactId>
				<version>${spring-cloud.version}</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>
		</dependencies>
	</dependencyManagement>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
				<configuration>
					<excludes>
						<exclude>
							<groupId>org.projectlombok</groupId>
							<artifactId>lombok</artifactId>
						</exclude>
					</excludes>
				</configuration>
			</plugin>
		</plugins>
	</build>

</project>

```

```java
package com.amir.order.models;

import lombok.Data;
import lombok.AllArgsConstructor;
import lombok.NoArgsConstructor;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Order {

    private Long  orderId;
    private Long productId;
    private int quantity;
    private String status;
    
}
```

```java
package com.amir.inventory.repository;

import org.springframework.data.jpa.repository.JpaRepository;

import com.amir.inventory.models.Product;

public interface ProductRepository extends JpaRepository<Product, Long> {

}

```

```java
package com.amir.inventory.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.amir.inventory.repository.ProductRepository;

@Service
public class InventoryService {
    @Autowired
    private ProductRepository productRepository;

    public boolean isProductInStock(Long productId , int requestedQuantity){
        return productRepository.findById(productId)
        .map(product -> product.getQuantity() >= requestedQuantity)
        .orElse(false);
    }
    
}

```

```java
package com.amir.inventory.controller;

import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.amir.inventory.service.InventoryService;

@RestController
@RequestMapping("/inventory")
public class InventoryController {

    private InventoryService inventoryService;

    public ResponseEntity<Boolean> checkAvailability(
        @RequestParam Long productId,
        @RequestParam int quantity
    ){
        boolean available = inventoryService.isProductInStock(productId, quantity);
        return ResponseEntity.ok(available);}
    
}

```

[application.properties](http://application.properties) 

```
spring.application.name=inventory-service

```

and inside the resouces 

data.sql 

like this 

```sql
INSERT INTO product (id, name, quantity) VALUES (1, 'Laptop', 50);
INSERT INTO product (id, name, quantity) VALUES (2, 'Smartphone', 100);

```

Q- but it get this error 

sers\PCS\.vscode\extensions\redhat.java-1.36.0-win32-x64\jre\17.0.13-win32-x86_64\bin\java.exe' '@C:\Users\PCS\AppData\Local\Temp\cp_4t6r5z2me3fqqeqejvl38mttg.argfile' 'com.amir.inventory.InventoryServiceApplication'

---

Description:

No spring.config.import property has been defined

Action:

Add a spring.config.import=configserver: property to your configuration.
If configuration is not required add spring.config.import=optional:configserver: instead.
To disable this check, set spring.cloud.config.enabled=false or
spring.cloud.config.import-check.enabled=false.

Q- what is the error and how to fix it