NFT Lazy minting ERC721 and ERC1155 with multiple creators/signatures

[0xSalky]

Hi,

I am trying to lazy mint ERC721 and ERC1155 tokens with multiple creators but i am getting an error after signing the transaction, after reading the discord and the docs i am seeing that i would need to pass an array with multiple signatures, which i tried but i am getting the same error.

This are the values i am passing to the SDK function (the first address is mine as the creator)
creators: [
{ account: "0xdd5Be842e8EC553c5d99Bff11799FadCF6a70B47", value: 5000 },
{ account: "0xe0eEae16006De78fe02a57Bd630d18C075cdCe19", value: 5000 },
]
signatures: ["0xdd5Be842e8EC553c5d99Bff11799FadCF6a70B47", "0xe0eEae16006De78fe02a57Bd630d18C075cdCe19"]

thanks in advance

[sirgawain0x]

@hugomarti testing from my end. What's the tokenId that you are passing?

[0xSalky]

i tried calling https://ethereum-api-staging.rarible.org/v0.1/nft/collections/{collection address}/generate_token_id?minter=${account}) and passing the return signature to the array but getting the same error.

I tried everything but seems i am getting the same error, hopefully you can give us a detailed information about how to do it as I am seeing many people struggling with the same issue and there is not clear way on how to do it at the docs.

thanks a lot :)

[evgenynacu]

Hey.
Currently, lazy minting by multiple creators is not supported via sdk. We need to figure out how to better implement this.

To use only API for this, you should do this:

• prepare message
• sign it by every creator
• pass it to the API

[0xSalky]

Thanks for the response @evgenynacu , could you please give us more details on how to do these steps or tell us which queries would do the job?

I am seeing lot of user having the same issue and i cant see info at the docs or figure out myself how to prepare the message and sign it by every creator.

Thnks in advance. :)

[bobwith2bees]

@evgenynacu How would later actions like placing the NFT for sale be affected when there are multiple creators? I see those API requests have a single signature field as opposed to an array of signatures like the lazy mint. (I could be looking at the wrong place?.... https://docs.rarible.org/ethereum/exchange/creating-a-sell-order/)

[bobwith2bees]

My question was answered in a similar discussion thread. From #139:

Regarding, who can list - there can be only one owner. And first creator will be the owner of the NFT. So only first creator can do this.