public async Task <UpdateBasketPayload> RemoveBasketItemAsync(
BasketItemDeleteInput input,
[ScopedService] ApplicationDbContext dbContext)
{
(Guid ownerId, Guid itemId) = input;
Model.Basket basket = await dbContext
.Baskets.Where(b => b.OwnerId == ownerId)
.Include(b => b.BasketItems)
.FirstOrDefaultAsync();
if (basket == null)
{
var extensions = new Dictionary <string, object?>()
{
{ "code", "1001" },
{ "id", ownerId }
};
Error error = new("Invalid basket owner id", extensions : extensions);
throw new QueryException(error);
}
// Check that the item exists
BasketItem?item = basket.BasketItems.FirstOrDefault(i => i.ItemId == itemId);
if (item == null)
{
var extensions = new Dictionary <string, object?>()
{
{ "code", "1002" },
{ "id", itemId }
};
Error error = new("Invalid basket item id", extensions : extensions);
throw new QueryException(error);
}
basket.BasketItems.Remove(item);
dbContext.Remove(item);
await dbContext.SaveChangesAsync();
return(new UpdateBasketPayload(basket));
}
private async Task <dynamic> RemoveBasketItem(Guid ownerId, Guid itemId)
{
var basketItemDeleteInput = new BasketItemDeleteInput(ownerId, itemId);
IExecutionResult result = await ServiceProvider.ExecuteRequestAsync(
QueryRequestBuilder
.New()
.SetQuery(@"
mutation RemoveBasketItem($input: BasketItemDeleteInput!) {
removeBasketItem(input: $input) {
basket {
id
ownerId
items {
id
quantity
}
}
}
}
")
.SetVariableValue(name : "input", value : basketItemDeleteInput)
.Create()
);
// Check against the snapshot, the existing basket was returned
var json = await result.ToJsonAsync();
Assert.NotNull(json);
ExpandoObject response = JsonConvert.DeserializeObject <ExpandoObject>(json, new ExpandoObjectConverter());
Assert.NotNull(response);
return(response);
}
