How can I use ERC20 tokens in a way to buy an ERC721 token?

Question

I would like to do a smart contract that allow me to buy an ERC721 token using an ERC20 token to pay

In my mind is something like: -I create a ERC721 token -I create a ERC20 token -I have a plattaform to buy the ERC721 with the ERC20 token

Thanks for the help !

Answer 1

If you go through the contract both 721 and erc20 interfaces are coded in. and the functions that allow the tokens to be transferred are at the bottom of the contract. If you fork the code and edit your problem should be solved (Y)

   // Transfer sale amount to seller
    acceptedToken.transferFrom(
        msg.sender,
        seller,
        price.sub(saleShareAmount)
    );

    // Transfer asset owner
    nonFungibleRegistry.safeTransferFrom(
        seller,
        msg.sender,
        assetId
    );

Answer 2

Take a look at how this is built, probably useful:

https://github.com/decentraland/marketplace-contracts/blob/master/contracts/marketplace/Marketplace.sol