Chainlink-bootcamp-day1

This the sample codes for Chainlink 2-day bootcamp day1 In day 1 of the bootcamp, you will compelete the NFT smart contract that allows minter to mint NFT randomly.

Instructions

• Open remix online IDE for Solidity.
• Get test tokens(Polygon mumbai in the case) from faucets.
• Create subscription in Chainlink VRF App and get a SubId.
• Deploy the smart contract VRFv2Consumer.sol with the subscription ID.
• Deploy the smart contract NFTDogs.sol.
• Call function setNft with address of deployed NFTDogs.sol.
• Call function setVrf with address of deployed VRFv2Consumer.sol.
• Add the address of VRFv2Consumer.sol under subscription you created in VRF App.
• Call function safeMint.
• Check if the fulfillment is successful in VRF App.
• Head to Opensea on testnet to check which dog you got!

smart contracts

• NFTDogs.sol: ERC-721 smart contract that allows minter to mint NFT randomly.
• VRFv2Consumer.sol: is called by NFTDogs.sol to send VRF request.

Tips:

Sample codes are based on Polygon testnet mumbai, if you prefer other testnets, update the configurations such as keyHash and VRFCoordinatorV2 address in the VRFv2Consumer.sol. These 2 parameters can be in Chainlink documents.