Revolutionizing Promotional Gifts: Marry Go Round Carousel Business Goes Digital with ERC721 Tokens
Aghasi Gasparyan
Co-founder at Galileo Figaro. Solidity & Web3 - Smart Contract Developer - galileofigaro.io
Dear friends,
Today, I want to share with you a story about a magical place that brings joy to the hearts of children and parents alike. It's a place where laughter echoes through the air, and the sound of music can be heard from afar. I'm talking about the Mary Go Around Carousel business, where dreams come true and memories are made.
But what makes this place even more special is the innovative way they have decided to engage with their community. By creating and using ERC721 tokens, Mary Go Around Carousel business is providing a unique opportunity for nearby cafeterias, bars, and restaurants to participate in their success and create an even more memorable experience for their customers.
Imagine walking into your favorite café, and as you order your latte, the barista hands you a token to use at the carousel across the square. Or perhaps you're enjoying a meal at a restaurant with your family, and the server surprises your child with a token to ride the carousel after dinner. These small gestures can create a sense of community, bring a smile to a child's face, and foster a sense of loyalty among customers.
But this is more than just a promotional gift. It's an opportunity to create a ripple effect of kindness and generosity. It's an opportunity to inspire others to take action, to think outside the box, and to strive for better possibilities.
pragma solidity ^0.8.0
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
contract MarryGoRound is ERC721, Ownable {
? ? uint256 public constant MAX_TOKENS = 100; // Maximum number of tokens available for purchase
? ? uint256 public constant TOKEN_PRICE = 0.01 ether; // Price of each token
? ? uint256 public tokensSold = 0; // Number of tokens sold
? ? mapping(uint256 => bool) public redeemedTokens; // Mapping of redeemed tokens
? ? constructor() ERC721("Marry Go Round Carousel", "MGR") {}
? ? // Mint new tokens and assign them to the purchaser's address
? ? function mintTokens(address to, uint256 amount) public onlyOwner {
? ? ? ? require(tokensSold + amount <= MAX_TOKENS, "Not enough tokens available for purchase");
? ? ? ? for (uint256 i = 0; i < amount; i++) {
? ? ? ? ? ? uint256 tokenId = tokensSold + 1;
? ? ? ? ? ? _safeMint(to, tokenId);
? ? ? ? ? ? tokensSold++;
? ? ? ? }
? ? }
? ? // Redeem a token and mark it as redeemed
? ? function redeemToken(uint256 tokenId) public {
? ? ? ? require(ownerOf(tokenId) == msg.sender, "You are not the owner of this token");
? ? ? ? require(!redeemedTokens[tokenId], "This token has already been redeemed");
? ? ? ? redeemedTokens[tokenId] = true;
? ? ? ? // TODO: Add code to exchange the token for a ride on the Marry Go Round Carousel
? ? }
? ? // Get the number of tokens remaining
? ? function tokensRemaining() public view returns (uint256) {
? ? ? ? return MAX_TOKENS - tokensSold;
? ? }
? ? // Get the number of tokens redeemed
? ? function tokensRedeemed() public view returns (uint256) {
? ? ? ? uint256 count = 0;
? ? ? ? for (uint256 i = 1; i <= tokensSold; i++) {
? ? ? ? ? ? if (redeemedTokens[i]) {
? ? ? ? ? ? ? ? count++;
? ? ? ? ? ? }
? ? ? ? }
? ? ? ? return count;
? ? }
}
First, we need to define the ERC721 token - NFT that represents a ride on the Marry Go Round Carousel. The token can have metadata such as the date of the ride and the location of the carousel.
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Next, the smart contract can allow the Marry Go Round Carousel business to mint new tokens whenever they sell a ride to a cafeteria, bar, or restaurant. The business can also set the price of the token and the number of tokens available for purchase.
When a customer receives the token as a promotional gift, they can redeem it by sending it to the smart contract. The smart contract can then verify the authenticity of the token and mark it as redeemed. Once the token is redeemed, the customer can take their child to the Marry Go Round Carousel and exchange the token for a ride.
The smart contract can also keep track of the number of tokens sold, redeemed, and remaining. This information can be displayed on a public dashboard for transparency.
Overall, this smart contract creates a seamless and secure way for the Marry Go Round Carousel business to sell their rides and for customers to redeem their promotional gifts.
So, I challenge you today to think about how you can create a similar experience in your own community. What innovative ideas can you come up with that will bring joy to others? What small gestures can you make that will have a big impact?
Remember, the possibilities are endless when we come together and strive for something greater than ourselves. Let's inspire each other to take action and create a world filled with joy, kindness, and generosity.
Thank you for reading, and let's go make a difference!