TokenFactory Core (中间件)

这是一个合约，您将 TokenFactory 模块中您的代币面额的管理员权限交由该合约。一旦该合约拥有这些权限，它就允许您/您的 DAO 控制的其他合约为您业务逻辑的需求（通过 WasmMsg）铸造代币。

这使得它更加灵活，因为多个合约可以为合约管理员“铸造”代币 :D

示例用例

$RAC 有插槽和骰子合约。如果他们想要为每次游戏为您铸造 1 RAC，那么插槽和骰子都需要是 token-factory 代币的管理员才能铸造。通过这个核心合约，一个合约是管理员，然后 DAO 可以将骰子和插槽地址列入白名单，以便代表其铸造代币。

这样铸造 $RAC，骰子合约将向核心合约发送一个 WasmMsg 铸造请求，然后向用户提供该代币。

Rust 依赖

将以下内容添加到您的 Cargo.toml 依赖项中用于合约。然后查看本文件的 Mint 部分，了解如何实现。

[dependencies]
juno-tokenfactory-types = { git = "https://github.com/CosmosContracts/tokenfactory-contracts" }

或从 crates.io - https://crates.io/crates/juno-tokenfactory-core

您可以在 示例合约 中查看如何使用此功能，或者查看 e2e 测试 以了解完整的 bash 示例。

链设置

主网存储代码：待定

# for uni-6 TESTNET
# update [key] here to be your local wallet's key or your wallet's address
FLAGS="--gas-prices 0.003ujuno --gas auto --gas-adjustment 1.3 --chain-id uni-6 --node https://juno-testnet-rpc.polkachu.com:443 --output json --from [key]"

# create a tokenfactory denomination via the CLI.
junod tx tokenfactory create-denom abcde $FLAGS
# factory/juno1......./abcde is your new denom


# upload this contract (skip if you use the mainnet code)
# junod tx wasm store artifacts/juno_tokenfactory_core.wasm $FLAGS

# Initialize this contract
# You may want to set this as a normal admin initially before changing its admin to a DAO
junod tx wasm instantiate "###" {"allowed_mint_addresses":[],"denoms":["factory/juno1./abcde"]} --label "tf-middlware" --admin [key] $FLAGS
# Get the middleware contract address here

# Transfer ownership of the token to the contract
junod tx tokenfactory change-admin factory/juno1./abcde juno1middlewarecontract $FLAGS

# Ensure the juno1middlewarecontract now has the admin role
junod q tokenfactory denom-authority-metadata factory/juno1./abcde

如何合约铸造

然后，您可以使用以下示例通过另一个合约铸造代币

// msg.rs - mint on behalf of the core_factory_address
#[cw_serde]
pub enum ExecuteMsg {
    MintTokens {
        // You could save this in state.rs on initialize.
        core_tf_middleware_contract: String,
        denoms: Vec<Coin>,
        to_address: String,
    },
}

// contract.rs - execute

// Ensure you added the tokenfactory-types dependency
use juno::juno_tokenfactory_types::msg::ExecuteMsg::Mint;

ExecuteMsg::MintTokens {
    core_tf_middleware_contract,
    denoms,
    to_address,
} => {
    let payload = Mint {
        address: to_address,
        denom: denoms,
    };
    let wasm_msg = WasmMsg::Execute {
        contract_addr: core_tf_middleware_contract.to_string(),
        msg: to_binary(&payload)?,
        funds: vec![],
    };

    Ok(Response::new()
        .add_attribute("method", "execute_mint_tokens_from_other_contract")
        .add_message(wasm_msg))
}