Product CRUD is done successfully.

Author: manirDev

src/main/java/com/manir/springbootecommercerestapi/controller/ProductController.java

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+package com.manir.springbootecommercerestapi.controller;
+
+import com.manir.springbootecommercerestapi.dto.ProductDto;
+import com.manir.springbootecommercerestapi.service.ProductService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping(value = "api/v1/products")
+public class ProductController {
+
+    @Autowired
+    private ProductService productService;
+
+    //product create api
+    @PostMapping("/createProduct")
+    public ResponseEntity<ProductDto> createProduct(@RequestBody ProductDto productDto){
+        ProductDto responseProduct = productService.createProduct(productDto);
+        return   new ResponseEntity<>(responseProduct, HttpStatus.CREATED);
+    }
+
+    //get all products api
+    @GetMapping("/getAllProduct")
+    public List<ProductDto> getAllProduct(){
+        List<ProductDto> responseProductDtoList = productService.getAllProduct();
+        return responseProductDtoList;
+    }
+
+    //get product by id api
+    @GetMapping("/{productId}")
+    public ResponseEntity<ProductDto> getProductById(@PathVariable Long productId){
+        ProductDto responseProduct = productService.getProductById(productId);
+        return ResponseEntity.ok(responseProduct);
+    }
+
+    //update product api
+    @PutMapping("/updateProduct/{productId}")
+    public ResponseEntity<ProductDto> updateProduct(@RequestBody ProductDto productDto,
+                                                    @PathVariable Long productId){
+        ProductDto responseProduct = productService.updateProduct(productDto, productId);
+        return ResponseEntity.ok(responseProduct);
+    }
+
+    //delete product api
+    @DeleteMapping("/deleteProduct/{productId}")
+    public  ResponseEntity<String> deleteProduct(@PathVariable Long productId){
+        productService.deleteProduct(productId);
+        return new ResponseEntity<>("Product with id: "+ productId +" is deleted successfully:)", HttpStatus.OK);
+    }
+
+}

src/main/java/com/manir/springbootecommercerestapi/dto/ProductDto.java

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+package com.manir.springbootecommercerestapi.dto;
+import lombok.Data;
+
+@Data
+public class ProductDto {
+    private Long id;
+    private String title;
+    private String keywords;
+    private String description;
+    private String detail;
+    private double price;
+    private Integer quantity;
+    private String status;
+}

src/main/java/com/manir/springbootecommercerestapi/repository/ProductRepository.java

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+package com.manir.springbootecommercerestapi.repository;
+
+import com.manir.springbootecommercerestapi.resource.Product;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface ProductRepository extends JpaRepository<Product, Long> {
+}

src/main/java/com/manir/springbootecommercerestapi/resource/Product.java

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+package com.manir.springbootecommercerestapi.resource;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.*;
+
+@AllArgsConstructor
+@NoArgsConstructor
+@Data
+@Entity
+@Table(name = "products")
+public class Product {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    @Column(name = "title")
+    private String title;
+    @Column(name = "keywords")
+    private String keywords;
+    @Column(name = "description")
+    private String description;
+    @Column(name = "detail")
+    private String detail;
+    @Column(name = "price")
+    private double price;
+    @Column(name = "quantity")
+    private Integer quantity;
+    @Column(name = "status")
+    private String status;
+}

src/main/java/com/manir/springbootecommercerestapi/service/Impl/ProductServiceImpl.java

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+package com.manir.springbootecommercerestapi.service.Impl;
+
+import com.manir.springbootecommercerestapi.dto.ProductDto;
+import com.manir.springbootecommercerestapi.exception.ResourceNotFoundException;
+import com.manir.springbootecommercerestapi.repository.ProductRepository;
+import com.manir.springbootecommercerestapi.resource.Product;
+import com.manir.springbootecommercerestapi.service.ProductService;
+import org.modelmapper.ModelMapper;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Service
+public class ProductServiceImpl implements ProductService {
+
+    @Resource(name = "modelMapper")
+    private ModelMapper modelMapper;
+    @Resource(name = "productRepository")
+    private ProductRepository productRepository;
+
+    @Override
+    public ProductDto createProduct(ProductDto productDto) {
+        //map to entity
+        Product product = mapToEntity(productDto);
+        Product createdProduct = productRepository.save(product);
+        //map to dto
+        ProductDto responseProduct = mapToDto(createdProduct);
+        return responseProduct;
+    }
+
+    @Override
+    public List<ProductDto> getAllProduct() {
+
+        List<Product> products = productRepository.findAll();
+        //map to dtos
+        List<ProductDto> productDtoList = products.stream()
+                                                  .map(product -> mapToDto(product))
+                                                  .collect(Collectors.toList());
+
+        return productDtoList;
+    }
+
+    @Override
+    public ProductDto getProductById(Long productId) {
+
+        Product product = productRepository.findById(productId)
+                                           .orElseThrow(
+                                                ()->new ResourceNotFoundException("Product", productId)
+                                            );
+        //map to dto
+        ProductDto responseProduct = mapToDto(product);
+
+        return responseProduct;
+    }
+
+    @Override
+    public ProductDto updateProduct(ProductDto productDto, Long productId) {
+        Product product = productRepository.findById(productId)
+                                           .orElseThrow(
+                                                ()->new ResourceNotFoundException("Product", productId)
+                                           );
+        product.setTitle(productDto.getTitle());
+        product.setDescription(productDto.getDescription());
+        product.setKeywords(productDto.getKeywords());
+        product.setPrice(productDto.getPrice());
+        product.setDetail(productDto.getDetail());
+        product.setQuantity(productDto.getQuantity());
+        product.setStatus(productDto.getStatus());
+
+        Product updatedProduct = productRepository.save(product);
+        //map to dto
+        ProductDto responseProduct = mapToDto(updatedProduct);
+        return responseProduct;
+    }
+
+    @Override
+    public void deleteProduct(Long productId) {
+        Product product = productRepository.findById(productId)
+                                           .orElseThrow(
+                                                ()->new ResourceNotFoundException("Product", productId)
+                                           );
+        productRepository.delete(product);
+    }
+
+    //map to dto
+    private ProductDto mapToDto(Product product){
+        ProductDto productDto = modelMapper.map(product, ProductDto.class);
+        return  productDto;
+    }
+    //map to entity
+    private Product mapToEntity(ProductDto productDto){
+        Product product = modelMapper.map(productDto, Product.class);
+        return product;
+    }
+}

src/main/java/com/manir/springbootecommercerestapi/service/ProductService.java

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+package com.manir.springbootecommercerestapi.service;
+
+import com.manir.springbootecommercerestapi.dto.CategoryDto;
+import com.manir.springbootecommercerestapi.dto.ProductDto;
+
+import java.util.List;
+
+public interface ProductService {
+    ProductDto createProduct(ProductDto productDto);
+    List<ProductDto> getAllProduct();
+    ProductDto getProductById(Long productId);
+    ProductDto updateProduct(ProductDto productDto, Long productId);
+    void deleteProduct(Long productId);
+}