Shopping Basket

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Introduction

In the world of e-commerce, a shopping basket is a crucial feature that enables customers to add and remove products from their cart. A well-designed shopping basket not only enhances the user experience but also streamlines the checkout process. In this article, we will delve into the implementation of a shopping basket feature, covering the essential tasks and components required to create a robust and user-friendly e-commerce solution.

Task 1: Implementing Basket Hooks and Context

To begin with, we need to implement basket hooks and context, which will serve as the foundation for our shopping basket feature. We can utilize the popular @tanstack/react-query library as our state store. This library provides a simple and efficient way to manage state in our application.

Getting Basket

To retrieve the basket, we can create a hook that fetches the basket data from the state store. We can use the useQuery hook from @tanstack/react-query to achieve this.

import { useQuery } from '@tanstack/react-query';

const useBasket = () => {
  const { data, error, isLoading } = useQuery(
    ['basket'],
    async () => {
      const response = await fetch('/api/basket');
      return response.json();
    },
    {
      staleTime: 1000 * 60 * 60, // 1 hour
    }
  );

  return { data, error, isLoading };
};

Adding to Basket

To add a product to the basket, we can create a hook that updates the basket data in the state store. We can use the useMutation hook from @tanstack/react-query to achieve this.

import { useMutation } from '@tanstack/react-query';

const useAddToBasket = () => {
  const { mutate, isLoading } = useMutation(
    async (product) => {
      const response = await fetch('/api/basket', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ product, amount: 1 }),
      });
      return response.json();
    },
    {
      onSuccess: () => {
        // Update the basket data in the state store
      },
    }
  );

  return { mutate, isLoading };
};

Removing from Basket

To remove a product from the basket, we can create a hook that updates the basket data in the state store. We can use the useMutation hook from @tanstack/react-query to achieve this.

import { useMutation } from '@tanstack/react-query';

const useRemoveFromBasket = () => {
  const { mutate, isLoading } = useMutation(
    async (product) => {
      const response = await fetch('/api/basket', {
        method: 'DELETE',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ product }),
      });
      return response.json();
    },
    {
      onSuccess: () => {
        // Update the basket data in the state store
      },
    }
  );

  return { mutate, isLoading };
};

Emptying/Clearing Basket

To empty the basket, we can create a hook that updates the basket data in the state store. We can use the useMutation hook from @tanstack/react-query to achieve this.

import { useMutation } from '@tanstack/react-query';

const useEmptyBasket = () => {
  const { mutate, isLoading } = useMutation(
    async () => {
      const response = await fetch('/api/basket', {
        method: 'DELETE',
      });
      return response.json();
    },
    {
      onSuccess: () => {
        // Update the basket data in the state store
      },
    }
  );

  return { mutate, isLoading };
};

Storing Basket State

To store the basket state in the browser's local storage, we can use the localStorage API.

import { useEffect } from 'react';

const useBasketStorage = () => {
  useEffect(() => {
    const storedBasket = localStorage.getItem('basket');
    if (storedBasket) {
      // Update the basket data in the state store
    }
  }, []);

  useEffect(() => {
    const basket = useBasket();
    localStorage.setItem('basket', JSON.stringify(basket));
  }, [useBasket]);
};

Task 2: Implementing Reusable "Add to Basket" Button

To create a reusable "Add to Basket" button, we can create a component that accepts a product as a prop and adds it to the basket when clicked.

import React from 'react';
import { useAddToBasket } from './useAddToBasket';

const AddToBasketButton = ({ product }) => {
  const { mutate, isLoading } = useAddToBasket();

  const handleAddToBasket = () => {
    mutate(product);
  };

  return (
    <button onClick={handleAddToBasket} disabled={isLoading}>
      {isLoading ? 'Adding...' : 'Add to Basket'}
    </button>
  );
};

Task 3: Implementing Reusable "Stepper" or "Quantity Selector" Component

To create a reusable "stepper" or "quantity selector" component, we can create a component that accepts a product as a prop and allows the user to select a quantity.

import React from 'react';

const QuantitySelector = ({ product, onChange }) => {
  const [quantity, setQuantity] = React.useState(1);

  const handleQuantityChange = (event) => {
    setQuantity(event.target.value);
    onChange(product, event.target.value);
  };

  return (
    <div>
      <label>Quantity:</label>
      <input type="number" value={quantity} onChange={handleQuantityChange} />
    </div>
  );
};

Task 4: Implementing List View of Products in Basket

To create a list view of products in the basket, we can create a component that fetches the basket data from the state store and displays the products in a list.

import React from 'react';
import { useBasket } from './useBasket';

const BasketListView = () => {
  const { data, error, isLoading } = useBasket();

  if (isLoading) {
    return <div>Loading...</div>;
  }

  if (error) {
    return <div>Error: {error.message}</div>;
  }

  return (
   ul>
      {data.products.map((product) => (
        <li key={product.id}>
          <strong>{product.name}</strong>
          <span> x {product.quantity}</span>
        </li>
      ))}
    </ul>
  );
};

Task 5: Implementing "Summary" View Next to Basket List View

To create a "summary" view next to the basket list view, we can create a component that fetches the basket data from the state store and displays the price summary and fees.

import React from 'react';
import { useBasket } from './useBasket';

const BasketSummaryView = () => {
  const { data, error, isLoading } = useBasket();

  if (isLoading) {
    return <div>Loading...</div>;
  }

  if (error) {
    return <div>Error: {error.message}</div>;
  }

  const subtotal = data.products.reduce((acc, product) => acc + product.price * product.quantity, 0);
  const tax = subtotal * 0.08;
  const total = subtotal + tax;

  return (
    <div>
      <h2>Summary</h2>
      <p>Subtotal: ${subtotal.toFixed(2)}</p>
      <p>Tax (8%): ${tax.toFixed(2)}</p>
      <p>Total: ${total.toFixed(2)}</p>
    </div>
  );
};

Conclusion

Introduction

In our previous article, we implemented a comprehensive shopping basket feature, covering the essential tasks and components required to create a robust and user-friendly e-commerce solution. In this article, we will answer some frequently asked questions related to the shopping basket feature.

Q: What is the purpose of the shopping basket feature?

A: The shopping basket feature is a crucial component of an e-commerce website that allows customers to add and remove products from their cart. It enables customers to view their selected products, update quantities, and proceed to checkout.

Q: How does the shopping basket feature work?

A: The shopping basket feature works by storing the customer's selected products in a state store, such as local storage or a database. When a customer adds a product to their basket, the product is added to the state store, and when they remove a product, it is removed from the state store.

Q: What are the benefits of using a shopping basket feature?

A: The benefits of using a shopping basket feature include:

  • Improved user experience: The shopping basket feature allows customers to easily view and manage their selected products.
  • Increased sales: By making it easy for customers to add and remove products from their basket, you can increase sales and revenue.
  • Enhanced customer satisfaction: The shopping basket feature helps to reduce cart abandonment rates and improves customer satisfaction.

Q: How do I implement a shopping basket feature in my e-commerce website?

A: To implement a shopping basket feature in your e-commerce website, you will need to:

  1. Choose a state store, such as local storage or a database.
  2. Create a component that allows customers to add and remove products from their basket.
  3. Implement a list view of products in the basket.
  4. Implement a "summary" view next to the basket list view.
  5. Store the basket state in the chosen state store.

Q: What are some common issues that can occur with the shopping basket feature?

A: Some common issues that can occur with the shopping basket feature include:

  • Cart abandonment: When customers add products to their basket but do not complete the purchase.
  • Quantity errors: When customers update the quantity of a product in their basket, but the update is not reflected correctly.
  • Product removal errors: When customers remove a product from their basket, but the product is not removed correctly.

Q: How can I troubleshoot issues with the shopping basket feature?

A: To troubleshoot issues with the shopping basket feature, you can:

  1. Check the state store for errors or inconsistencies.
  2. Verify that the component that allows customers to add and remove products from their basket is functioning correctly.
  3. Check the list view of products in the basket for errors or inconsistencies.
  4. Check the "summary" view next to the basket list view for errors or inconsistencies.

Q: Can I customize the shopping basket feature to fit my e-commerce website's needs?

A: Yes, you can customize the shopping basket feature to fit your e-commerce website's needs. You can modify the component that allows customers to and remove products from their basket, the list view of products in the basket, and the "summary" view next to the basket list view to fit your website's design and functionality.

Conclusion

In this article, we have answered some frequently asked questions related to the shopping basket feature. We have covered the purpose and benefits of the shopping basket feature, how it works, and how to implement it in your e-commerce website. We have also discussed common issues that can occur with the shopping basket feature and how to troubleshoot them.