SAFARI MIXER NFT

A dynamic, random, and unlimited NFT collection. Mint your new brand animal and start your safari!

Polygon Hackathon by Encode Club - Fullstack challenge winner 🏆

Live demo at www.safarimixer.com Another demo link

Presentation in PDF format here

NFT collection in OpenSea here

The GitHub repo for the smart contract is here

This is submission for an Advanced Fullstack Challenge for the Polygon hackathon by Encode, June 2022.

Introduction

This project builds an unlimited, dynamic, and random (with different chances) generated NFT collection minter smart contract and interacts with a React frontend.

Dynamic based on the price of MATIC (binary value based on 1 MATIC >= 1 USD or 1 MATIC < 1 USD) from a Chainlink Data feed.

Chances for random are: [5, 10, 15, 20, 25, 30, 34, 38, 42, 46, 50, 54, 58, 62, 66, 70, 72, 76, 80, 83, 86, 89, 91, 93, 95, 97, 99, MAX_CHANCE_VALUE];

For these animals: antelope, buffalo, bunny, cat, chicken, crocodile, dinosaur, dog, duck, elephant, flamingo, fox, frog, giraffe, gorilla, hippo, hyena, leopard, lion, lizard, ostrich, pig, puma, rhino, sheep, tiger, tortoise, and unicorn.

Smart contract address (Verified)

Please find the GitHub repo for the smart contract here

Contract address: 0x95B4f2897B96e94Ce73aAF1298EaE00Bd01defCb Check it here

This project includes the following contracts:

• SafariMixerNFT.sol
• VRFCoordinatorV2Mock.sol (mock)
• MockV3Aggregator.sol (mock)

And scripts with task implementations:

• 00-deploy-mocks.js
• 01-deploy-nft.js
• 02-mint.js

Setup Smart Contract repo

First, please clone the repo and install the dependencies with the below commands:

git clone https://github.com/ivanmolto/safari-mixer-smart-contracts.git
cd safari-mixer-smart-contracts
npm install

To compile run in the terminal the following command: npx hardhat compile

To deploy run in the terminal the following command: npx hardhat deploy --network polygonMumbai

To mint run in the terminal the following command: npx hardhat deploy --tags mint --network polygonMumbai

OpenSea collection

See NFT collection in OpenSea here

Images

All images and token URIs are stored in IPFS (used Pinata.cloud)

Chainlink Data Feed and Verifiable Random Function

Used Polygon (Matic) Data Feed:

• MATIC / USD see here for getting the NFT images dynamically and imported "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol"

Used Chainlink Verifiable Randomness Function: As a method to secure randomness for the smart contract getting the images and imported

• "@chainlink/contracts/src/v0.8/VRFConsumerBaseV2.sol"
• "@chainlink/contracts/src/v0.8/interfaces/VRFCoordinatorV2Interface.sol"

Created also the subscription 728 see here

License

The code is licensed under a MIT License.

Getting Started with Create React App

This project was bootstrapped with Create React App.

Available Scripts

In the project directory, you can run: npm start

Runs the app in the development mode.
Open http://localhost:3000 to view it in your browser.

The page will reload when you make changes.
You may also see any lint errors in the console.

npm run build

Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.