Fungible and Non Fungible Token standard

tahlil · February 6, 2024, 1:28pm

Are there any standards defined in Sui for fungible and nonfungible tokens like in Eth ERC20 for fungible tokens and ERC721 for non-fungible tokens?

amnn · February 7, 2024, 5:10pm

Hi @tahlil,

Our equivalent for the Fungible Token standard is the 0x2::coin module:

github.com

MystenLabs/sui/blob/8ce29fe3fd12834a07ff024f01350bbc7a110a7c/crates/sui-framework/packages/sui-framework/sources/coin.move

// Copyright (c) Mysten Labs, Inc.
// SPDX-License-Identifier: Apache-2.0

/// Defines the `Coin` type - platform wide representation of fungible
/// tokens and coins. `Coin` can be described as a secure wrapper around
/// `Balance` type.
module sui::coin {
    use std::string;
    use std::ascii;
    use std::option::{Self, Option};
    use sui::balance::{Self, Balance, Supply};
    use sui::tx_context::TxContext;
    use sui::object::{Self, UID, ID};
    use sui::transfer;
    use sui::url::{Self, Url};
    use std::vector;
    use sui::deny_list::{Self, DenyList};
    use std::type_name;

    /// A type passed to create_supply is not a one-time witness.

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The standard is represented programmatically, on-chain, using a module in the Sui framework.

When it comes to NFTs, Objects on Sui already have a lot of the properties that people look for from an NFT standard, built into the chain, related to ownership and transfers. On top of that, we have:

Object Display Standard – for defining a custom representation for your NFTs that are generally understood by Marketplaces and Explorers.
Kiosk – to give creators and marketplaces control over things like royalties, and other conditions that must be met when performing a transfer.

bipin_bhandari · March 26, 2024, 8:09am

Thanks @amnn however i do have one question? what about Origin-Byte NFT Protocol for SUI? Is that recommended or encouraged by SUI Team?
I read somewhere Origin Byte NFT Protocol has the most marketshare of the NFT standards on Sui. Is this true and are there any tradeoffs? I couldn’t find any reference of Origin Byte in SUI official docs?

amnn · March 26, 2024, 10:40am

Let me defer to @damirka for the answer here.