YouTube Video NFT Tokenizer

Mint trustful NFTs for your YouTube videos. Ownership is checked by an oracle that consumes YouTube's API and the terms licensed to the NFT owner are defined using semantic NFT metadata.

Features

YouTube Video NFTs with multiple editions for the same video identifier.
Video ownership verification using a Chainlink oracle.
Rich NFT metadata stating the terms licensed to the owner using semantic metadata and ontologies.
Semantic metadata representation using JSON-LD but compatible with existing NFT marketplaces, so NFTs can be traded there.
Frontend that facilitates user experience, including verifying that the YouTube video exists, fetching its title, or monitoring oracle verification events so the users get feedback through the whole minting process.

Architecture

Notes

Based on Chainlink's Hardhat Starter Kit and React Moralis for the frontend.

Installation

Requirements

NPM or YARN

Rinkeby Ethereum Testnet

Set your RINKEBY_RPC_URL

Matic Mumbai Testnet

Set your MUMBAI_RPC_URL

Setting Environment Variables

You can set these in your .env file. If you're unfamiliar with how setting environment variables work, check out our .env example. If you wish to use this method to set these variables, update the values in the .env.example file, and then rename it to '.env'.

If you plan on deploying to a local Hardhat network that's a fork of the Ethereum mainnet instead of a public test network, you'll also need to set your MAINNET_RPC_URL environment variable and uncomment the forking section in hardhat.config.js. You can get one for free at Alchemy's site..

You can also use a PRIVATE_KEY instead of a MNEMONIC environment variable by uncommenting the section in the hardhat.config.js, and commenting out the MNEMONIC line.

Then you can install all the dependencies.

git clone https://github.com/rogargon/YTVideoNFTknz/
cd YTVideoNFTknz

then

npm install

yarn

Auto-Funding

This Starter Kit is configured by default to attempt to auto-fund any newly deployed contract that uses Any-API or Chainlink VRF, to save having to manually fund them after each deployment. The amount in LINK to send as part of this process can be modified in the Starter Kit Config, and are configurable per network.

Parameter	Description	Default Value
fundAmount	Amount of LINK to transfer when funding contracts	1 LINK

If you wish to deploy the smart contracts without performing the auto-funding, run the following command when doing your deployment:

npx hardhat deploy --tags main

Deploy

Deployment scripts are in the deploy directory.

This will deploy to a local hardhat network:

npx hardhat deploy

To deploy to testnet:

npx hardhat deploy --network kovan

Test

Tests are located in the test directory.

To run tests:

yarn test

Verify on Etherscan

You'll need an ETHERSCAN_API_KEY environment variable. You can get one from the Etherscan API site.

npx hardhat verify --network <NETWORK> <CONTRACT_ADDRESS> <CONSTRUCTOR_PARAMETERS>

example:

npx hardhat verify --network kovan 0x9279791897f112a41FfDa267ff7DbBC46b96c296 "0x9326BFA02ADD2366b30bacB125260Af641031331"

Linting

yarn lint:fix