SW design week SW design week
This week up to 80% off on software design courses. More info

Lesson 22 - E-shop in ASP.NET Core MVC - Cart - Business Layer

In the previous lesson, E-shop in ASP.NET Core MVC - Shopping Cart, we thought about the implementation of the shopping cart mechanism and prepared the database for storing orders. In today's ASP.NET Core MVC tutorial, we're going to focus on the business layer, where we're going to prepare a manager to handle orders and pair them with clients.

Cookie Helpers

Before we start writing the order manager, we'll prepare the methods for working with cookies. These methods will be useful at multiple places of the business layer, so we won't put them directly in OrderManager, but we'll create them as an extension for HttpContext which works with cookies in ASP.NET Core.

SetCookie() and GetCookie()

The SetCookie() method updates values of a cookie if the cookie with the given key already exists. If it doesn't, it creates a new cookie. As parameters, we pass the key (name) of the cookie, the value to store, and the amount of time till the cookie expires. The GetCookie() method, on the other hand, returns the value of the cookie with a given key.

The code for both methods is as follows:


 

...End of the preview...

Commercial article (licence no-reselling)

Commercial article (licence no-reselling)

This article is based on many years of experience in the IT field, and describes how to develop a professional commercial product or parts, that can be directly used to generate profit or to get as a gate into the industry.

This knowledge is only can only be used properly by the members of our community who are working their way up to become IT professionals. Therefore, this knowledge is only available in exchange for points. You can use the source code from this article for one commercial project. However, you will not be able to resell it. Simply put, you can't buy our article once and then sell our code multiple times. If you need to use this code a bit more extensively, we are ready to discuss Commercial licence options with you. You can find more info on this in the following article Licence.

Are you ready to become a professional? All you have to do is click here!.

Article description

Requested article covers this content:

In this ASP.NET Core MVC tutorial, we'll prepare an order manager which will use cookies. We'll add new methods to the data layer.

Limited offer: Learn all knowledge and save money

Buy articles and tests separately one by one 990 points
Buy the course including all articles and features for an exclusive price 842 points
Currently, you have 0 points
By buying this exclusive package, you'll have access to all 34 articles in this course including exercise submitting while saving $13.36. This offer is limited for the first articles only with an additional exclusive 15% discount.
You gain 842 points for adding an article to the site, or for $89.10 $75.73

Buy just this article

Warning, by buying just this article you'll lose the limited 15% discount for the package of all the articles.

To access the article, you need 30 points
Currently, you have 0 points
You gain 30 points for adding an article to the site, or for $2.70

Before buying this article, you have to buy the previous one

Buying this article gives you unlimited access to it forever. You will learn some more and help us keep giving our site maintenance which helps you and others get better futures. It's a win-win.

This article is licensed :Premium no-reselling II, by buying this article, you agree with the terms of use.

You gain points by supporting our network. This is done by sending a helpful amount of money to support the site, or by creating content for the network.

You can get points immediately using:

Credit card SMS Wire transfer
Credit card SMS Wire transfer

 

Activities (2)