Random Mint

Smart Contracts
1

When somebody use my mint button i want him to receive a random NFT from this transaction.

When i use mint button (mintAmount = 2) my NFT's metadata's will be like,
ipfs://image_link/1.json
ipfs://image_link/2.json

But i dont want this. I want to receive my NFT's randomly. Like this,
ipfs://image_link/578.json
ipfs://image_link/877.json

I hope i was clear. How can i do that?

1 Like
2

Hi, welcome to OpenZeppelin.

You have to implement a random feature that picks an id between number of NFTs.
Where is the code you are working with?

3

Hey thanks for reply im using one of the hashlips repositories. Here is the code: https://github.com/HashLips/solidity_smart_contracts/blob/main/contracts/NFT/NFT.sol

How can i implement random feature. I have no idea at all... Can you PLEASE help me about that? I really want to learn how to do this and its important to me.

1 Like
4

you can have a public function that state the exact id you want or randomize it and can be generated onClick.

something like:

function mintRandomly() public{
  uint tokenID = /*randomly generate an ID that is within the totalSupply*/
 _safeMint(to, tokenID)
}
5

Randomness in smart contracts is difficult to achieve. There is a lot written about this, even in this forum. Please search the forum and the web for "NFT randomization" or similar.

Here's a popular thread for you to read: