added all the DTO classes

src/main/java/com/vedasole/ekartecommercebackend/payload/AddressDto.java

@@ -0,0 +1,19 @@
+package com.vedasole.ekartecommercebackend.payload;
+
+import com.vedasole.ekartecommercebackend.entity.Address;
+import lombok.Builder;
+
+import javax.validation.constraints.*;
+import java.io.Serial;
+import java.io.Serializable;
+
+/**
+ * DTO for {@link Address}
+ */
+@Builder
+public record AddressDto(long addressId, String addLine1, String addLine2, @NotNull @NotEmpty @NotBlank String city,
+                         @NotNull @NotEmpty @NotBlank String state, @NotNull @NotEmpty @NotBlank String country,
+                         @Min(5) @Max(value = 6, message = "Postal code should be not greater than 5 characters") int postalCode) implements Serializable {
+    @Serial
+    private static final long serialVersionUID = 4607115799900867635L;
+}

src/main/java/com/vedasole/ekartecommercebackend/payload/ApiResponse.java

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+package com.vedasole.ekartecommercebackend.payload;
+
+import lombok.*;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class ApiResponse {
+
+    private String message;
+
+    private boolean success;
+
+}

src/main/java/com/vedasole/ekartecommercebackend/payload/CategoryDto.java

@@ -0,0 +1,13 @@
+package com.vedasole.ekartecommercebackend.payload;
+
+import java.io.Serial;
+import java.io.Serializable;
+
+/**
+ * DTO for {@link com.vedasole.ekartecommercebackend.entity.Category}
+ */
+public record CategoryDto(long categoryId, String name, String image, String desc,
+                          long parentCategory, boolean isActive) implements Serializable {
+    @Serial
+    private static final long serialVersionUID = -6361844320830928689L;
+}

src/main/java/com/vedasole/ekartecommercebackend/payload/CustomerDto.java

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+package com.vedasole.ekartecommercebackend.payload;
+
+import javax.validation.constraints.NotNull;
+
+import java.io.Serial;
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+/**
+ * DTO for {@link com.vedasole.ekartecommercebackend.entity.Customer}
+ */
+public record CustomerDto(long customerId, String firstName, String lastName, long phoneNumber, String email,
+                          LocalDateTime createDt, @NotNull AddressDto address) implements Serializable {
+    @Serial
+    private static final long serialVersionUID = -4970632778733952870L;
+}

src/main/java/com/vedasole/ekartecommercebackend/payload/OrderDetailDto.java

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+package com.vedasole.ekartecommercebackend.payload;
+
+import com.vedasole.ekartecommercebackend.entity.OrderDetail;
+import javax.validation.constraints.NotNull;
+
+import java.io.Serial;
+import java.io.Serializable;
+
+/**
+ * DTO for {@link OrderDetail}
+ */
+public record OrderDetailDto(long orderDetailsId, @NotNull OrderDto order, long productProductId, String productName,
+                             String productImage, String productDesc, double productPrice, int productQtyInStock,
+                             CategoryDto productCategory) implements Serializable {
+    @Serial
+    private static final long serialVersionUID = -5054394287337400890L;
+}

src/main/java/com/vedasole/ekartecommercebackend/payload/OrderDto.java

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+package com.vedasole.ekartecommercebackend.payload;
+
+import com.vedasole.ekartecommercebackend.entity.Order;
+import com.vedasole.ekartecommercebackend.entity.OrderDetail;
+import com.vedasole.ekartecommercebackend.utility.OrderStatus;
+import javax.validation.constraints.NotNull;
+
+import java.io.Serial;
+import java.io.Serializable;
+import java.time.LocalDateTime;
+import java.util.Set;
+
+/**
+ * DTO for {@link Order}
+ */
+public record OrderDto(long orderId, @NotNull CustomerDto customer, @NotNull Set<OrderDetail> orderDetails,
+                       @NotNull AddressDto address, LocalDateTime orderDt, double total,
+                       OrderStatus orderStatus) implements Serializable {
+    @Serial
+    private static final long serialVersionUID = 4761708818033261120L;
+}

src/main/java/com/vedasole/ekartecommercebackend/payload/ProductDto.java

@@ -0,0 +1,16 @@
+package com.vedasole.ekartecommercebackend.payload;
+
+import com.vedasole.ekartecommercebackend.entity.Product;
+import javax.validation.constraints.NotNull;
+
+import java.io.Serial;
+import java.io.Serializable;
+
+/**
+ * DTO for {@link Product}
+ */
+public record ProductDto(long productId, String name, String image, String desc, double price, int qtyInStock,
+                         @NotNull CategoryDto category) implements Serializable {
+    @Serial
+    private static final long serialVersionUID = 2079394134035966353L;
+}

src/main/java/com/vedasole/ekartecommercebackend/payload/ShoppingCartDto.java

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+package com.vedasole.ekartecommercebackend.payload;
+
+import com.vedasole.ekartecommercebackend.entity.ShoppingCart;
+import com.vedasole.ekartecommercebackend.entity.ShoppingCartItem;
+import javax.validation.constraints.NotNull;
+
+import java.io.Serial;
+import java.io.Serializable;
+import java.util.Set;
+
+/**
+ * DTO for {@link ShoppingCart}
+ */
+public record ShoppingCartDto(long cartId, @NotNull CustomerDto customerId,
+                              @NotNull Set<ShoppingCartItem> shoppingCartItems) implements Serializable {
+    @Serial
+    private static final long serialVersionUID = 2151030173521724266L;
+
+
+}