智能合约部署时是否可以充值？

Question

假设我有一个 Solidity 智能合约MultiToken.sol，正在使用Hardhat开发和测试并部署到RSK网络。\n\xe2\x80\x8b

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//SPDX-License-Identifier: Unlicense\npragma solidity ^0.8.0;\n\xe2\x80\x8b\nimport "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";\n\xe2\x80\x8b\ncontract MultiToken is ERC1155 {\n    constructor(string memory uri) ERC1155(uri) {}\n}\n

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\xe2\x80\x8b\n我正在测试before部分部署智能合约：\n\xe2\x80\x8b

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//SPDX-License-Identifier: Unlicense\npragma solidity ^0.8.0;\n\xe2\x80\x8b\nimport "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";\n\xe2\x80\x8b\ncontract MultiToken is ERC1155 {\n    constructor(string memory uri) ERC1155(uri) {}\n}\n

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\xe2\x80\x8b\n我希望能够在部署交易期间将一些RBTC转移到我的智能合约地址。是否可以在部署时使用 Hardhat 和 Ether 充值智能合约的余额？\n\xe2\x80\x8b\n具体来说，我可以通过单个交易来完成此操作吗？\n\xe2\x80\ x8b\n供参考，这是我的hardhat.config.js：\n\xe2\x80\x8b

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const { expect } = require(\'chai\');\nconst { ethers } = require(\'hardhat\');\n\xe2\x80\x8b\ndescribe(\'MultiToken\', () => {\n  let multiToken;\n\xe2\x80\x8b\n  const uri = \'https://token-cdn-domain/{id}.json\';\n\xe2\x80\x8b\n  before(async () => {\n    const factory = await ethers.getContractFactory(\'MultiToken\');\n    multiToken = await factory.deploy(uri);\n    await multiToken.deployed();\n  });\n\xe2\x80\x8b\n  it(\'MultiToken URI must be correct\', async () => {\n    const multiTokenUri = await multiToken.uri(0);\n    expect(multiTokenUri).to.equal(uri);\n  });\n});\n

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Answer 1

您可以声明 constructor as payable，然后覆盖value部署事务的参数（默认值 0）。

contract MultiToken is ERC1155 {
    constructor(string memory uri) ERC1155(uri) payable {}
}

multiToken = await factory.deploy(uri, {
    value: ethers.utils.parseUnits("1"), // 1 RBTC to wei
});

文件：

• https://docs.soliditylang.org/en/v0.8.14/cheatsheet.html?highlight=payable#modifiers
• https://docs.ethers.io/v5/api/utils/display-logic/#utils-parseUnits
• https://docs.ethers.io/v5/api/contract/contract-factory/#ContractFactory-deploy