Basic Usage

import { defineClassMapping, getMapper } from '@pebula/tom/mapping';

class OrderDto implements Models.OrderDto {

@P id: number;

@P date: string;

@P shipped: boolean;

@P status: string;

@P.asArray(() => OrderItemDto) items: OrderItemDto[];

@P eTag: string;

}

class OrderItemDto implements Models.OrderItemDto {

@P sku: string;

@P quantity: number;

@P price: number;

}

class Order implements Models.Order {

@P id: number;

@P date: Date;

@P shipped: boolean;

@P.enum(OrderStatus) status: OrderStatus;

@P.asArray(() => OrderItem) items: OrderItem[];

}

class OrderItem implements Models.OrderItem {

@P sku: string;

@P quantity: number;

@P price: number;

}

defineClassMapping(OrderItemDto, OrderItem, { 'strict' })

.forMember('sku', 'sku')

.forMember('price', 'price')

.forMember('quantity', 'quantity')

.seal();

defineClassMapping(OrderDto, Order, { 'strict' })

.forMember('id', 'id')

.forMember('date', 'date', Types.String) // Convert string to Date

.forMember('shipped', 'shipped')

.forMember('status', 'status', true) // Convert enum value

.forMember('items', 'items')

.forMember('eTag', c => c.ignore() ) // We must ignore or we can seal (enforced on design & runtime level)

.seal();

const mapper = getMapper(OrderDto, Order);

const orderDto = new OrderDto();

// Assume populating OrderDto and OrderItemDto items

const order = mapper.transform(orderDto, {});