A13–Building App using Angular and ASP.NET Core 2.1–Updating Shopping Cart Quantity

This post is a part of a series of posts that I am writing as I am building an app using Angular and ASP.NET Core 2.1. Links to previous posts –> A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12 Github Repo

Today’s post is going to be brief. I added following functionality to Shopping Cart page.

When you increase quantity of any given product then,

1. Order sub total should get updated.

2. Order Quantity should be updated.

3. Cart total should be updated.

Since there is no database backend, I have to add extra logic to account for persistence. For example, to simulate accurate quantity and amount post deletion, I had to write custom server side logic. This is unnecessary once data store is in place.

After increasing quantity order sub total is updated.

There is one issue I am running into and that is when using ngModelChange on input element, the change event is firing twice which seems like bug to me or I am doing something wrong (I think later to be true).

That’s all for today, see ya next time.