Build and Deploy a Modern Full Stack ECommerce Application with Stripe

banner.js

export default {
    name: 'banner',
    title: 'Banner',
    type: 'document',
    fields: [
        {
            name: 'image',
            title: 'Image',
            type: 'image',
            options: {
                hotspot: true,
            },
        },
        {
            name: 'buttonText',
            title: 'ButtonText',
            type: 'string',
        },
        {
            name: 'product',
            title: 'Product',
            type: 'string',
        },
        {
            name: 'desc',
            title: 'Desc',
            type: 'string',
        },
        {
            name: 'smallText',
            title: 'SmallText',
            type: 'string',
        },
        {
            name: 'midText',
            title: 'MidText',
            type: 'string',
        },
        {
            name: 'largeText1',
            title: 'LargeText1',
            type: 'string',
        },
        {
            name: 'largeText2',
            title: 'LargeText2',
            type: 'string',
        },
        {
            name: 'discount',
            title: 'Discount',
            type: 'string',
        },
        {
            name: 'saleTime',
            title: 'SaleTime',
            type: 'string',
        },
    ],
};

globals.css

html,
body, * {
  padding: 0;
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen,
    Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif;
  box-sizing: border-box;

}
::-webkit-scrollbar {
  width: 0px;
}

a {
  color: inherit;
  text-decoration: none;
}

.main-container{
max-width: 1400px; 
margin: auto;
width: 100%;

}
.layout{
  padding: 10px;
}

.navbar-container{
  display: flex;
  justify-content: space-between;
  margin: 6px 18px;
  position: relative;
}
.marquee-text{
  font-size: 29px;
  font-weight: 600;
  margin: 60px 0px;
  color: #f02d34;
}
.marquee {
  position: relative;
  height: 400px;
  width: 100%;
  overflow-x: hidden;
}

.track {
  position: absolute;
  white-space: nowrap;
  will-change: transform;
  animation: marquee 15s linear infinite;
  width: 180%;
}
.track:hover {
  animation-play-state: paused;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

 span.text-red {
    -webkit-text-stroke: 1px #f02d34;
    margin-left: 6px;
}
.logo{
  color: gray;
  font-size: 18px;

}
.cart-icon{
  font-size: 25px;
  color: gray;
  cursor: pointer;
  position: relative;
  transition: transform .4s ease;
  border: none;
  background-color: transparent;
}
.cart-icon:hover{
  transform: scale(1.1,1.1);
}
.cart-item-qty{
  position: absolute;
  right: -8px;
  font-size: 12px;
  color: #eee;
  background-color: #f02d34;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  text-align: center;
  font-weight: 600;

}
.products-container{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  margin-top: 20px;
  width: 100%;
}
.product-card{
 cursor: pointer;
  transform: scale(1, 1);
  transition: transform 0.5s ease;
 color: #324d67;

}
.product-card:hover{
  transform: scale(1.1,1.1)
}
.product-image{
  border-radius: 15px;
 background-color: #ebebeb;
  transform: scale(1, 1);
  transition: transform 0.5s ease;
}

.product-name{
  font-weight: 500;
}
.product-price{
  font-weight: 800;
  margin-top: 6px;
  color: black;
}

.hero-banner-container{
  padding: 100px 40px;
  background-color: #dcdcdc;
  border-radius: 15px;
  position: relative;
  height: 500px;
  line-height: 0.9; 
  width: 100%;

}
.hero-banner-container .beats-solo{
  font-size: 20px;
}
.hero-banner-container button{
   border-radius: 15px;
  padding: 10px 16px;
  background-color: #f02d34;
  color: white;
  border: none;
  margin-top: 40px;
  font-size: 18px;
  font-weight: 500;
  cursor: pointer;
  z-index:10000 !important;
}

.hero-banner-container h3{
  font-size: 4rem;
  margin-top: 4px;
}
.hero-banner-container h1{
  color: white;
  font-size: 10em;
  margin-left: -20px;
  text-transform: uppercase;
}
.hero-banner-image{
  position: absolute;
  top: 0%;
  right:20%;
  width: 450px;
  height: 450px;
}


.desc{
position: absolute;
right: 10%;
bottom: 5%;
width: 300px;
line-height: 1.3;
display: flex;
flex-direction: column;
 color: #324d67;

}
.desc p{
  color: #5f5f5f;
  font-weight: 100;
text-align: end;
}
.desc h5{
  margin-bottom: 12px;
  font-weight: 700;
  font-size: 16px;
  /* color: black; */
  align-self: flex-end;
}
.products-heading{
  text-align: center;
  margin: 40px 0px;
 color: #324d67;

}
.products-heading h2{
  font-size: 40px;
  font-weight: 800;
}
.products-heading p{
  font-size: 16px;
  font-weight: 200;
}
.footer-banner-container{
  padding: 100px 40px;
  background-color: #f02d34;
  border-radius: 15px;
  position: relative;
  height: 400px;
  line-height: 1; 
  color: white;
  width: 100%;
  margin-top: 120px;
}
.banner-desc{
  display: flex ;
  justify-content: space-between;
}
.banner-desc button{
  border-radius: 15px;
  padding: 10px 16px;
  background-color: white;
  color: red;
  border: none;
  margin-top: 40px;
  font-size: 18px;
  font-weight: 500;
  cursor: pointer;
}
.banner-desc .left h3{
  font-weight: 900;
  font-size: 80px;
  margin-left: 25px;
}
.banner-desc .left p{
  margin:18px;
}
.footer-banner-image{
  position: absolute;
  /* top: -35%;
  left: 8%; */
  top: -25%;
  left: 25%;
}
.banner-desc .right{
  line-height: 1.4;
}
.banner-desc .right h3{
  font-weight: 800;
  font-size: 60px;
}
.banner-desc .right p{
  font-size: 18px;
}
.banner-desc .right .company-desc{
  font-size: 14px;
  font-weight: 300;
}
.cart-wrapper{
  width: 100vw;
  background: rgba(0, 0, 0, 0.5);
  position: fixed;
  right: 0;
  top: 0;
  z-index: 100;
  /* will-change: transform; */
  transition: all 1s ease-in-out;

}
.cart-container{
  height: 100vh;
  width: 600px;
  background-color: white;
  float: right;
  padding: 40px 10px;
  position: relative;
  
}

.footer-container{
  color: #324d67;
  text-align: center;
  margin-top: 20px;
  padding: 30px 10px;
  font-weight: 700;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  justify-content: center;

}
.footer-container .icons{
  font-size: 30px;
  display: flex;
  gap: 10px;
}
 .cart-heading{
  display: flex;
  align-items: center;
  font-size: 18px;
  font-weight: 500;
  cursor: pointer;
  gap: 2px;
  margin-left: 10px;
  border: none;
  background-color: transparent;
}

.cart-heading .heading{
  margin-left: 10px;
}
.cart-num-items{
  margin-left: 10px;
  color: #f02d34;
}
.empty-cart{
  margin:40px;
  text-align:center;
}
.empty-cart h3{
  font-weight: 600;
  font-size: 20px;
}
.cancel{
  cursor: pointer;
}
.product-container{
  margin-top: 15px;
  overflow: auto;
max-height: 70vh;
padding: 20px 10px;
}
.product{
  display: flex;
 gap: 30px;
  padding: 20px;
}
.product .cart-product-image{
  width:180px ;
  height: 150px;
    border-radius: 15px;
 background-color: #ebebeb;
}
.item-desc .flex{
  display: flex;
  justify-content: space-between;
  width: 350px;
   color: #324d67;

}
.item-desc .bottom{
  margin-top: 60px;
}
.flex h5{
  font-size: 24px;
}
.flex h4{
  font-size: 20px;
}
.total{
  display: flex;
  justify-content: space-between;
}
.total h3{
  font-size: 22px;

}
.remove-item{
  font-size: 24px;
  color: #f02d34;
  cursor: pointer;
  background: transparent;
  border: none;
}
.cart-bottom{
  position: absolute;
  bottom: 12px;
  right: 5px;
width: 100%;
padding: 30px 65px;

}

.btn-container{
  width: 400px;
  margin: auto;
}
.btn{
  width: 100%;
  max-width: 400px;
  padding: 10px 12px;
  border-radius: 15px;
  border: none;
  font-size: 20px;
  margin-top: 10px;
  margin-top: 40px;
  text-transform: uppercase;
  background-color: #f02d34;
  color: #fff;
  cursor: pointer;
    transform: scale(1, 1);
  transition: transform 0.5s ease;
}
.btn:hover{
  transform: scale(1.1,1.1);
}
.product-detail-container{
  display: flex;
 gap: 40px;
 margin: 40px;
 margin-top: 60px;
 color: #324d67;

}

.product-detail-image{
  border-radius: 15px;
   background-color: #ebebeb;

  width: 400px;
  height: 400px;
  cursor: pointer;
  transition: .3s ease-in-out;
}
.product-detail-image:hover{
  background-color: #f02d34;

}
.small-images-container{
  display: flex;
  gap: 10px;
  margin-top: 20px;
}
.small-image{
  border-radius: 8px;
  background-color: #ebebeb;
  width: 70px;
  height: 70px;
  cursor: pointer;
}

.selected-image{
  background-color:#f02d34;
}
.reviews{
  color: #f02d34;
  margin-top: 10px;
  display: flex;
  gap: 5px;
  align-items: center;
}

.product-detail-desc h4{
  margin-top: 10px;
}
.product-detail-desc p{
  margin-top: 10px;
}
.reviews p{
  color: #324d67;
  margin-top: 0px;
}
.product-detail-desc .price{
  font-weight: 700 ;
  font-size: 26px;
  margin-top: 30px;
  color:#f02d34;
}
.price .old-price, .product-price .old-price, .price .old-price{
  color: gray;
  text-decoration: line-through;
}
.product-detail-desc .quantity{
  display: flex;
  gap: 20px;
  margin-top: 10px ;
  align-items: center;
}
.product-detail-desc .buttons{
  display: flex;
  gap: 30px;
}
.buttons .add-to-cart{
  padding: 10px 20px;
  border: 1px solid #f02d34 ;
  margin-top: 40px;
  font-size: 18px;
  font-weight: 500;
  background-color: white;
  color: #f02d34;
  cursor: pointer;
  width: 200px;
   transform: scale(1, 1);
  transition: transform 0.5s ease;
}
.buttons .add-to-cart:hover{
  transform:scale(1.1,1.1)
}
.buttons .buy-now{
  width: 200px;

  padding: 10px 20px;
  background-color: #f02d34;
  color: white;
  border: none;
  margin-top: 40px;
  font-size: 18px;
  font-weight: 500;
  cursor: pointer;
   transform: scale(1, 1);
  transition: transform 0.5s ease;
}
.buttons .buy-now:hover{
  transform:scale(1.1,1.1)
}
.quantity-desc{
  border: 1px solid gray;
padding: 6px;
}
.quantity-desc span{
  font-size: 16px;
  padding: 6px 12px;
  cursor: pointer;
}
.quantity-desc .minus{
  border-right: 1px solid gray;
  color: #f02d34;
}
.quantity-desc .num{
  border-right: 1px solid gray;
  font-size: 20px;
}
.quantity-desc .plus{
  color: rgb(49, 168, 49);

}

.maylike-products-wrapper{
  margin-top: 120px;
}
.maylike-products-wrapper h2{
  text-align: center;
  margin: 50px;
  color: #324d67;

  font-size: 28px;
}
.maylike-products-container{
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-top: 20px;
}
.max-qty{
  font-weight: 500;
  color: #f02d34;
}
.success-wrapper, .cancel-wrapper{
  background-color: white;
  min-height: 60vh;

}
.success, .cancel{
  width: 1000px;
margin: auto;
margin-top: 160px;
  background-color: #dcdcdc;
  padding: 50px;
  border-radius: 15px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.success .icon {
   color: green;
   font-size: 40px;
}
.success h2{
  text-transform: capitalize;
  margin-top: 15px 0px;
  font-weight: 900;
  font-size: 40px;
  color:#324d67;
}
.success .email-msg{
   font-size: 16px;
  font-weight: 600;
  text-align: center;
}
.cancel p{
  font-size: 20px;
  font-weight: 600;
}
.success .description{
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  margin: 10px;
  margin-top: 30px;
}
.success .description .email{
  margin-left: 5px;
  color: #f02d34;
}
.product-max-qty{
  margin-top: 10px;
}

@media screen and (max-width:800px) {
  .hero-banner-container{
    height: 560px;
  }
  .hero-banner-image{
    width: 77%;
    height: 62%;
    top: -2%;
    right: -6%;
  }
  .footer-banner-container{
    height: 560px;
    margin-top: 80px;
  }
  .footer-banner-image{
    width: 77%;
    left: 30%;
    top: 6%;
    height: 56%
  }
  .banner-desc .left h3{
    font-weight: 900;
    font-size: 50px;
    margin-left: 5px;
  }
  .banner-desc .left p{
    margin:18px;
  }
  .banner-desc .right h3{
    font-size: 45px;
  }
  .banner-desc .right p{
    font-size: 18px;
  }
  .banner-desc .right .company-desc{
    font-size: 14px;
  }
  .banner-desc{
    flex-wrap: wrap;
    gap: 20px;
  }
  .hero-banner-container{
    line-height: 1.3;
  }
  .hero-banner-container h1{
    font-size: 50px;
  }
 .hero-banner-container h3{
    font-size: 40px;
  }
  .hero-banner-container button{
    margin-top: 90px;
    z-index: 10000;
  }
  .desc{
   bottom: 60px;
  }
  .product-detail-container{
    flex-wrap: wrap;
    }
  .product-detail-container .product-detail-image{
    width: 350px;
    height: 350px;
  }
  .cart-container{
    width: 415px;
  padding: 4px;
  }
  .cart-heading{
    margin-top: 35px;
  }
  .product-container{
    margin-top: 10px;
  }
  .product{
    padding: 20px 5px;

  }
  .product .cart-product-image{
    width: 25%;
    height: 25%;
  }
  .buttons .add-to-cart{
    width: 150px;
  }
  .buttons .buy-now{
    width: 150px;
  }
  .product-detail-container{
    margin: 20px;
  }

.item-desc .flex{
  width: 200px;
}
.top{
  flex-wrap: wrap;
  gap: 10px;


}
.item-desc .bottom{
  margin-top: 30px;
}
.flex h5{
  font-size: 16px;
   color: #324d67;
}
.flex h4{
  font-size: 16px;
   color: black;
}
.cart-bottom{
  padding: 30px;
}

.total h3{
  font-size: 20px;
}
.track {
  animation: marquee 10s linear infinite;
  width: 550%;
}
.success-wrapper, .cancel-wrapper{
 
  min-height: 69vh;
}
.success, .cancel {
   width: 370px;
  margin-top: 100px;
  padding: 20px;
}
.success{
  height: 350px;
}
.success h2{
  font-size: 17px;
}
.btn-container{
  width: 300px;
  margin: auto;
}
}

package.json

{
  "name": "sanity-ecommerce",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "dev": "next dev",
    "build": "next build",
    "start": "next start",
    "lint": "next lint"
  },
  "dependencies": {
    "@sanity/client": "^3.2.0",
    "@sanity/image-url": "^1.0.1",
    "@stripe/stripe-js": "^1.25.0",
    "canvas-confetti": "^1.5.1",
    "next": "12.1.0",
    "next-sanity-image": "^3.2.1",
    "react": "17.0.2",
    "react-dom": "17.0.2",
    "react-hot-toast": "^2.2.0",
    "react-icons": "^4.3.1",
    "stripe": "^8.209.0"
  },
  "devDependencies": {
    "eslint": "^8.10.0",
    "eslint-config-airbnb": "^19.0.4",
    "eslint-config-next": "^12.1.0",
    "eslint-plugin-import": "^2.25.4",
    "eslint-plugin-jsx-a11y": "^6.5.1",
    "eslint-plugin-react": "^7.29.3",
    "eslint-plugin-react-hooks": "^4.3.0"
  }
}

StateContext.js

import React, { createContext, useContext, useState, useEffect } from 'react';
import { toast } from 'react-hot-toast';

const Context = createContext();

export const StateContext = ({ children }) => {
  const getLocalStorage = (name) => {
    if (typeof window !== 'undefined') {
      const storage = localStorage.getItem(name);

      if (storage) return JSON.parse(localStorage.getItem(name));

      if (name === 'cartItems') return [];

      return 0;
    }
  };

  const [showCart, setShowCart] = useState(false);
  const [cartItems, setCartItems] = useState(getLocalStorage('cartItems'));
  const [totalPrice, setTotalPrice] = useState(getLocalStorage('totalPrice'));
  const [totalQuantities, setTotalQuantities] = useState(getLocalStorage('totalQuantities'));
  const [qty, setQty] = useState(1);

  let findProduct;
  let index;
  
  useEffect(() => {
    localStorage.setItem('cartItems', JSON.stringify(cartItems));
    localStorage.setItem('totalPrice', JSON.stringify(totalPrice));
    localStorage.setItem('totalQuantities', JSON.stringify(totalQuantities));
  }, [cartItems, totalPrice, totalQuantities]);

  const onAdd = (product, quantity) => {
    const checkProductInCart = cartItems.find(
      (cartProduct) => cartProduct._id === product._id,
    );

    if (checkProductInCart) {
      setTotalPrice(totalPrice + product.price * quantity);
      setTotalQuantities(totalQuantities + quantity);

      const updatedCartItems = cartItems.map((cartProduct) => {
        if (cartProduct._id === product._id) {
          return { ...cartProduct, quantity: cartProduct.quantity + quantity };
        }
        return cartProduct;
      });

      setCartItems(updatedCartItems);
      toast.success(`${qty} ${product.name} added`);
    } else {
      setTotalPrice(totalPrice + product.price * quantity);
      setTotalQuantities(totalQuantities + quantity);
      // eslint-disable-next-line no-param-reassign
      product.quantity = quantity;
      setCartItems([...cartItems, { ...product }]);

      toast.success(`${qty} ${product.name} added`);
    }
  };

  const onRemove = (product) => {
    findProduct = cartItems.find((item) => item._id === product._id);
    const tempCart = cartItems.filter((item) => item._id !== product._id);
    setTotalPrice(totalPrice - findProduct.price * findProduct.quantity);
    setTotalQuantities(totalQuantities - findProduct.quantity);
    setCartItems(tempCart);
  };

  const toggleCartItemQuantity = (id, value) => {
    findProduct = cartItems.find((item) => item._id === id);
    index = cartItems.findIndex((product) => product._id === id);

    if (value === 'inc') {
      findProduct.quantity += 1;
      cartItems[index] = findProduct;
      setTotalPrice(totalPrice + findProduct.price);
      setTotalQuantities(totalQuantities + 1);
    }

    if (value === 'dec') {
      if (findProduct.quantity > 1) {
        findProduct.quantity -= 1;
        cartItems[index] = findProduct;
        setTotalPrice(totalPrice - findProduct.price);
        setTotalQuantities(totalQuantities - 1);
      }
    }
  };

  const incQty = () => {
    setQty((oldQty) => {
      const tempQty = oldQty + 1;
      return tempQty;
    });
  };

  const decQty = () => {
    setQty((oldQty) => {
      let tempQty = oldQty - 1;
      if (tempQty < 1) {
        tempQty = 1;
      }
      return tempQty;
    });
  };

  return (
    <Context.Provider
      // eslint-disable-next-line react/jsx-no-constructed-context-values
      value={{
        onAdd,
        onRemove,
        cartItems,
        totalPrice,
        totalQuantities,
        setShowCart,
        setCartItems,
        setTotalPrice,
        setTotalQuantities,
        showCart,
        incQty,
        decQty,
        qty,
        toggleCartItemQuantity,
      }}
    >
      {children}
    </Context.Provider>
  );
};

export const useStateContext = () => useContext(Context);

can somebody share all the command for installing all the dependencies.