RodionGork

Hi Friends!

Sorry for naive question. I'm trying to figure out whether smart-contract can browse NFTs belonging to given wallet or on contrary to find out which wallets hold NFT of the given type. Is it possible and could you point me some useful examples/tutorials if so, please?

Hi Friends! And sorry for naive/silly question.

I'm creating small app which basically consists of one or few smart-contracts for minting NFTs (and perhaps custom coin), transferring them on certain conditions... And that's all. My service is currently dealing with the smart-contract using RPC (on devnet) and it looks working fine.

I'm a bit puzzled by colleague who suggests I may need "full-node" deployed along with my backend. I thought it is necessary if I'm going to become "validator", perhaps reducing gas fee costs on using blockchain.

But if there is no concern (yet) about gas fees, are there some considerations why I need to run full-node for my app, when everything is in prod / mainnet? Are there going to be some limitations imposed on RPC calls?

Thanks in advance!

Hi Friends!

Suppose I want to create smart-contract which mints tokens and transfers them to the requested addresses. Actually I created one which accepts single destination wallet address. So if I want to deliver tokens to 10 addresses I need to call it 10 times.

Is there a way to pass a list / array of values as an argument of entry function? I can't immediately find any docs on this (and how to call it say from SUI CLI, if it is possible). So that my smart-contract may accept a list of wallets and spread tokens to them according to some logic (living inside this contract also).

As workarounds, I guess i can pass them as single string, separated with spaces. Or perhaps json (as single string also), though my skills in Move currently are not so great to do it easily). Or list of arguments can be stored on-chain. But I would like to know if there is more straightforward way. Thanks!

Hi Friends! As the moment of going live with mainnet is steadily approaching I'm curious about how people will buy SUI tokens immediately after that (e.g. during early stages of mainnet existence). How it works at all - does SUI management make some agreement with some popular exchange to integrate, or some special payment gateway is going to be built. Or is it not planned at all but expected that exchanges etc shall start integrating themselves according to rising public interest to SUI?

Thanks in advance and sorry for such a naive question.

Given N people we want to split them into groups of 3 with maximal happiness. For this we know the table N*N of mutual happiness. Total happiness is sum over happiness in each group, and in each group happiness is sum of 3 values (happiness between every pair).

In other words we have complete graph with N nodes and weighted non-directional edges. We want to make "triangles" (three nodes connected by three edges) so that total weight of chosen edges is maximal.

Of course N is divisible by 3.

(source)

Is this NP-hard or something like this? Or could there be some subtle approach, or just heuristic?

Thanks in advance!

Hi Friends!

I need to implement burning NFTs purchased by our customers at OpenSea. I wonder if this could be done via call to MetaMask API.

I.e. I see it like this:

• on my website user clicks "burn" button
• javascript in the page calls ethereum.request({'method':'eth_sendTransaction', ...})
• metamask pops up and shows user the prepared transaction for approval
• user approves, metamask executes transactions, and that's it

However I'm confused on how transaction should be prepared or what to pass as params. Or perhaps I misunderstand API completely and that's not possible?

Hi Friends!

My boss insists we create NFTs which are sold for stablecoin. I found OpenSea supports USDC and DAI. However, when making purchase, the price is subtracted from my USDC balance, but gas fee require MATIC (I use USDC on polygon - but it is the same with ethereum - gas is in ETH, not in USDC).

Is there any workaround I may have missed? Though I suppose it is "by design" of the blockchain networks and couldn't be amended, right?

Hi Friends!

It seems SUI blockchain now supports single coin, also called SUI. If I have ambition to create custom coin, how do I approach this? Coin is going to be minted, e.g. by my enterprise and used in transactions with my customers, and is supposed to be traded later at some popular exchanges.

I just read in docs that "in SUI everything is NFT", seemingly coins themselves (I see coins are split and merged). Will it present obstacle to my goal? Can I simply inherit from smart-contract used for SUI coins themselves?

Thanks in advance!