Get запрос в постмане

  
@RestController 
@RequestMapping("/api/v1/products") 
@RequiredArgsConstructor 
public class ProductController { 
 
    private final ProductService productService; 
 
    @GetMapping 
    public ListfindAllProd(){ 
        return productService.findAll(); 
    } 
 
    @GetMapping("/{id}") 
    public ResponseEntity getProductById (@PathVariable Long id) { 
        Optional product =productService.findByID(id); 
        if(!product.isPresent()){ 
            ResponseEntityerr = new ResponseEntity<>(new AppError(HttpStatus.NOT_FOUND.value(), "not found"), HttpStatus.NOT_FOUND); 
            return err; 
        } 
        return new ResponseEntity<>(product.get(), HttpStatus.OK); 
    } 
 
    @DeleteMapping("/{id}") 
    public void delProdById(@PathVariable Long id){ 
        productService.deleteById(id); 
    } 
}  

 server:  
 
  port: 8189  
 
  servlet:  
 
    context-path: /app  
 
utils:  
 
  cart:  
 
    prefix: SPRING_WEB_  
 
spring:  
 
  datasource:  
 
    driver-class-name: org.h2.Driver  
 
    url: jdbc:h2:mem:mydatabase;MODE=PostgreSQL  
 
    username: sa  
 
    password:  
 
  
 
  jpa:  
 
    show-sql: true  
 
    properties:  
 
      hibernate:  
 
        dialect: org.hibernate.dialect.H2Dialect  
 
  h2:  
 
    console:  
 
      enabled: true  
 
      settings:  
 
        web-allow-others: false