React redux shopping cart pointers:
- The first step is to create a component to show product with its price and add to cart button.
- The second step is to create a component to list products.
- Next step is to create cart component to manage to add and remove cart functionality.
- Finally Actions and Reducers to achieve functionality.
Get product listing:
I like reactjs because everything in it is a component. Let’s get started by creating a small component for a product. After creating component we have created API in express, so you can use that for fetching products from express mock products API which we have created in node express. After getting products from API we need to show it as product list as below.
Create react single product component:
This is the smallest possible component we have created in shopping cart example in reactjs (i.e Single Product with its name, price and image). It also has add, remove product buttons to add a product into the cart and remove a product from cart. Add/Remove button is the toggle button to add and remove product to/from cart. The single product component is created as below.
Create react product listing component:
Shopping cart product list is nothing but the collection of single product components. This component is used to show the list of products with a product name, description, pricing etc as mentioned in single product component. In this example, we have used react material-ui components for user interface purpose. Refer this link to know more about how to integrate React Material UI with React application. In this section, we have imported single product component and iterate it by the list of product details.
Create shopping cart component:
Shopping cart component is most important part of this example. This component will track all the added and removed product details. Products details such as price and the total amount of all products with all products count which are added to cart. This will manages by addToCart, remove from cart, getCart actions which are shown below.
Actions to be used in react shopping cart to fetch product list:
In this example, we have created these actions to fetch products from express API. These actions also used for loading products, add to cart, remove from cart, check element is in the cart, get cart product details etc. The code is self-explanatory and easy to understand. Actions
React Reducers to update state according to products and shopping cart:
React Reducers will manage all the operations perform for cart functionality such as add to cart, remove from cart, and calculating total price and count of items. If you have any doubt regarding react reducers then follow this link. React Reducers
Finally, we have created fully working react redux shopping cart functionality. If you have any problem understanding above code snippet then just comment. If you want to play with it just follow below link for GitHub source code.
React redux material shopping cart demo with a dynamic material theme: Demo!!!
Source Code: Github Repo