message: fix(exchange): public orderbook endpoint
diff: @@ -14,10 +14,18 @@ export class OrderBookController {
  @Post('/search')
  @UseGuards(AuthGuard())
  public getByProduct(@UserDecorator() user: IUser, @Body() productFilter: ProductFilterDTO) {
  + return this.filterOrderBook(productFilter, user.id.toString());
  + }
  +
  + @Post('/public/search')
  + public getByProductPublic(@Body() productFilter: ProductFilterDTO) {
  + return this.filterOrderBook(productFilter);
  + }
  +
  + private filterOrderBook(productFilter: ProductFilterDTO, userId?: string) {
  const { asks, bids } = this.orderBookService.getByProduct(
  ProductFilterDTO.toProductFilter(productFilter)
  );
  - const userId = user?.id.toString();
  return {
  asks: asks.map(ask => OrderBookOrderDTO.fromOrder(ask, userId)).toArray(),
  