product-api: initial api impl

Author: mama-samba-braima

pom.xml

@@ -40,6 +40,19 @@
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.postgresql</groupId>
+            <artifactId>postgresql</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
     </dependencies>
 
     <build>

src/main/java/com/amigoscode/Main.java

@@ -1,7 +1,14 @@
 package com.amigoscode;
 
+import com.amigoscode.product.Product;
+import com.amigoscode.product.ProductRepository;
+import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+
+import java.math.BigDecimal;
+import java.util.UUID;
 
 @SpringBootApplication
 public class Main {
@@ -10,4 +17,20 @@ public static void main(String[] args) {
         SpringApplication.run(Main.class, args);
     }
 
+    @Bean
+    public CommandLineRunner commandLineRunner(
+            ProductRepository productRepository) {
+        return args -> {
+            Product product = new Product();
+            product.setName("Macbook Pro");
+            product.setDescription("Macbook Pro M4");
+            product.setPrice(new BigDecimal(3000));
+            product.setId(UUID.fromString(
+                    "d95062e6-9f0b-4224-bc9d-d0723949848f")
+            );
+            product.setStockLevel(100);
+            productRepository.save(product);
+        };
+    }
+
 }

src/main/java/com/amigoscode/product/Product.java

@@ -0,0 +1,137 @@
+package com.amigoscode.product;
+
+import jakarta.persistence.*;
+
+import java.math.BigDecimal;
+import java.time.Instant;
+import java.util.Objects;
+import java.util.UUID;
+
+@Entity
+@Table(
+        name = "product"
+)
+public class Product {
+
+    @Id
+    private UUID id;
+
+    @Column(nullable = false, length = 50)
+    private String name;
+
+    private String description;
+
+    @Column(nullable = false, precision = 10, scale = 2)
+    private BigDecimal price;
+
+    @Column(length = 200)
+    private String imageUrl;
+
+    @Column(nullable = false)
+    private Integer stockLevel;
+
+    @Column(nullable = false, updatable = false)
+    private Instant createdAt;
+
+    private Instant updatedAt;
+
+    private Instant deletedAt;
+
+    @PrePersist
+    public void prePersist(){
+        if(this.id == null) {
+            this.id = UUID.randomUUID();
+        }
+        this.createdAt = Instant.now();
+        this.updatedAt = Instant.now();
+    }
+
+    @PreUpdate
+    public void preUpdate(){
+        this.updatedAt = Instant.now();
+    }
+
+    public UUID getId() {
+        return id;
+    }
+
+    public void setId(UUID id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public BigDecimal getPrice() {
+        return price;
+    }
+
+    public void setPrice(BigDecimal price) {
+        this.price = price;
+    }
+
+    public String getImageUrl() {
+        return imageUrl;
+    }
+
+    public void setImageUrl(String imageUrl) {
+        this.imageUrl = imageUrl;
+    }
+
+    public int getStockLevel() {
+        return stockLevel;
+    }
+
+    public void setStockLevel(int stockLevel) {
+        this.stockLevel = stockLevel;
+    }
+
+    public Instant getCreatedAt() {
+        return createdAt;
+    }
+
+    public void setCreatedAt(Instant createdAt) {
+        this.createdAt = createdAt;
+    }
+
+    public Instant getUpdatedAt() {
+        return updatedAt;
+    }
+
+    public void setUpdatedAt(Instant updatedAt) {
+        this.updatedAt = updatedAt;
+    }
+
+    public Instant getDeletedAt() {
+        return deletedAt;
+    }
+
+    public void setDeletedAt(Instant deletedAt) {
+        this.deletedAt = deletedAt;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null || getClass() != o.getClass()) return false;
+        Product product = (Product) o;
+        return stockLevel == product.stockLevel && Objects.equals(id, product.id) && Objects.equals(name, product.name) && Objects.equals(description, product.description) && Objects.equals(price, product.price) && Objects.equals(imageUrl, product.imageUrl) && Objects.equals(createdAt, product.createdAt) && Objects.equals(updatedAt, product.updatedAt) && Objects.equals(deletedAt, product.deletedAt);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, name, description, price, imageUrl, stockLevel, createdAt, updatedAt, deletedAt);
+    }
+}

src/main/java/com/amigoscode/product/ProductController.java

@@ -0,0 +1,23 @@
+package com.amigoscode.product;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/api/v1/products")
+public class ProductController {
+
+    private final ProductService productService;
+
+    public ProductController(ProductService productService) {
+        this.productService = productService;
+    }
+
+    @GetMapping
+    public List<Product> getAllProducts() {
+        return productService.getAllProducts();
+    }
+}

src/main/java/com/amigoscode/product/ProductRepository.java

@@ -0,0 +1,9 @@
+package com.amigoscode.product;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.UUID;
+
+public interface ProductRepository
+        extends JpaRepository<Product, UUID> {
+}

src/main/java/com/amigoscode/product/ProductService.java

@@ -0,0 +1,18 @@
+package com.amigoscode.product;
+
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class ProductService {
+    private final ProductRepository productRepository;
+
+    public ProductService(ProductRepository productRepository) {
+        this.productRepository = productRepository;
+    }
+
+    public List<Product> getAllProducts() {
+        return productRepository.findAll();
+    }
+}

src/main/resources/application.properties

@@ -1 +1,9 @@
-spring.application.name=java-springboot-full-stack
+spring.application.name=jfs
+spring.datasource.url=jdbc:postgresql://localhost:5432/jfs
+spring.datasource.username=amigoscode
+spring.datasource.password=
+spring.datasource.driver-class-name=org.postgresql.Driver
+
+spring.jpa.hibernate.ddl-auto=create-drop
+spring.jpa.show-sql=true
+spring.jpa.properties.hibernate.format_sql=true