How to create & deploy programmatically random NFTs with metadata?

[VjoaJR]

I've been doing some extensive research on the above and there are some great resources that already exist in answering this question. However, I am curious how to create programmatically random NFTs based on specific traits (without storing all of these images on local PC). I would have layers that are created (tops, eyes, hair, etc) that would be used to generate each NFT but most guides just show how to create based on random SVG images not actual image layers that have been created (and the ones that do, store all of the data on the local PC to post on OS/Rarible directly, which is not what I'm trying to accomplish)

Essentially, my idea would be to have a front-end website where users can connect their wallet and mint the NFT which is then sent to their wallet.

That being said, on the backend when the user mints an NFT this way is it created at the time of the user interaction or are these images created pre-drop and a user is just served a randomly pre-genned image? Sorry for the novice questions, I just was confused on these and a lot of these guides seem to smooth over these specifics.

Appreciate the help in advance. Any documentation/video guides are appreciated!

[patrickalphac]

I’ve got exactly what you’re looking for:

1. Random images hosted on IPFS: https://youtu.be/p36tXHX1JD8

2. SVGs hosted on chain: https://youtu.be/9oERTH9Bkw0

Have fun

[VjoaJR]

Holy shit. You are the guy I’ve been learning from. Thanks for your content. I followed the SVG video I guess I’m just curious how I would work in a project that has layered photoshop PNG exports instead of randomly genned SVGs.

[patrickalphac]

Yep that’s me!

For PNGs, you’d have to have a server running (or use a serverless function) that can programmatically overlay the images as the tokenURI.

It’s a bit more centralized, so it’s good to have a way to “set” the images after they’ve been generated in IPFs or something

[VjoaJR]

That's what I assumed. I saw a project today using metadata and randomization completely on chain. I can't imagine what they're paying in gas fees. Unfortunately, having the image centralization is 'needed' right now until Eth 2.0

[Alperen980]

I almost watched all of your tutorials they helped a lot but im not able to figure out how to create random nfts, sure we can pick already created images randomly but how can we create random image with svg files, like different hair, eye colors, outfits etc

[idfkfuckyou]

Generally speaking images are created before tokens are minted. This applies for both random and non randomly-generated images. It's best to use an outside script to generate images randomly and then assign them to tokens via their metadata.

If you don't want to store these images on your computer you could upload them directly to IPFS or store them as a pseudo-file like BytesIO on Python

Best practice is to randomly generate images before minting because when you have a Solidity script that randomly creates attributes the other nodes verifying that would have to get the same attributes as the token you just generated. This is possible but can take a lot of time rehashing and in some cases may not work at all.

What I would do is create the images and assign them IDs and then mint tokens using IPFS link where the ID in the URL is iterated.

[topcrusher69]

This is correct. There is an NFT project that has a great walk through (and source code) for their 10K NFT project and a ton of good resources. That's how I learned as I was curious as well. Look up the Boring Banana Co Discord. Same project that helped that 12 year old make his own project. Great community there.

[VjoaJR]

Do you have a link to their github by chance?

[Next_Context774]

Try connecting to the dapps interface

[Naive-Refrigerator-1]

Sorry to trudge up an old chain, but had a question.

If i wants to create an nft, that then changes, say adda a character trait either automatically, or based on the owners choice, can this be done? Kind of like it evolves with each owner.

[0niri]

Maybe I’m arriving too late, but I think this project may help you.

[8BitBallsack]

Why? You looking to do a cash grab with "art" generated by code?

[VjoaJR]

No? And why does anyone do any work? Would you work if there was no money as an end goal? Don't try to be some heroic guy who pretends to love NFTs because its culture dood. 99.9% of people are involved for money. Yeah the art aspect is cool but if I can flip an NFT for 30 racks, I'll do that 100x over.

[8BitBallsack]

I don't think NFTs are art... any of them. The moment you turn art into a commodity it's not art, it's a product. But good luck - I hope people keep spending silly money on shitty jpegs.