Create Order with Apex and Lightning Web Component

Question

I am trying to create a new order with line items based on data sent from a Lightning Web Component to my Apex class.

I have managed to send the data by using the following function:

newOrder(){
        let Items = JSON.stringify(this.cartItems);
        createCheckoutOrder({lstProds: Items});
        window.console.log('Cart Items '+ Items);

    }

This is the apex class that I am using:

public static void createCheckoutOrder(List<Map<string, object>> lstProds){

        system.debug(lstProds); 

        list<OrderItem> orderItems = new list<OrderItem>();

        for(Object pl: lstProds){
            orderItems.add(new OrderItem(UnitPrice         = pl.UnitPrice,
                                          OrderId           = ord.id,
                                          Quantity          = pl.quantity,
                                          Product2Id        = pl.Id,
                                          PricebookEntryId  = pl.PricebookEntryId

            ));
        }
        system.debug(orderItems);
        insert orderItems;
}

This is the form of the data in the debug log:

({element={Id=01t0X000008AclSQAS, PricebookEntryId=01u0X000011uFBwQAM, UnitPrice=25000, quantity=1}}, {element={Id=01t0X000008AclVQAS, PricebookEntryId=01u0X000011uFBzQAM, UnitPrice=20000, quantity=1}}, {element={Id=01t0X000008AclbQAC, PricebookEntryId=01u0X000011uFC5QAM, UnitPrice=10000, quantity=1}})

I have tried to create a new OrderItem List and add items to the list based on the data received form the LWC. How can I correctly assign values to the order item fields with the correct values from the LWC?

Answer 1

First thing, What is the issues in your code?

You are trying to access these fields on Map, which does not exist. You need to convert the pl into the map, then you can access that.

public static void createCheckoutOrder(List<Map<string, object>> lstProds){

    system.debug(lstProds); 

    list<OrderItem> orderItems = new list<OrderItem>();

    for(Object pl: lstProds){

        Map<String, Object> oliFIeldsMap = (Map<String, Object>) pl;
        system.debug('UnitPrice ' + oliFIeldsMap.get('UnitPrice'));
    }
    system.debug(orderItems);
    insert orderItems;
}

Secondly, the recommended way

The simple way I would prefer to change to signature of the Aura Enabled Apex method so that it accepts the list of OrderItems directly.

public static void createCheckoutOrder(List<OrderItem> lstProds){
    for(OrderItem oli: lstProds){
        //... do some stuff if needed
    }
    insert lstProds;
}