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社区首页 >问答首页 >使用TypeChain生成的接口实例化合同

使用TypeChain生成的接口实例化合同
EN

Ethereum用户
提问于 2022-05-24 13:25:36
回答 1查看 1.6K关注 0票数 2

在我的稳固代码库中,我使用的是一个接口,这些类型是由TypeChain生成的:

代码语言:javascript
运行
复制
import { BaseContract, BigNumber, BigNumberish, BytesLike, CallOverrides, PopulatedTransaction, Signer, utils } from "ethers";
import { FunctionFragment, Result } from "@ethersproject/abi";
import { Listener, Provider } from "@ethersproject/providers";
import { TypedEventFilter, TypedEvent, TypedListener, OnEvent } from "./common";

export interface IHintHelpersInterface extends utils.Interface {
    contractName: "IHintHelpers";
    functions: {
        "getApproxHint(uint256,uint256,uint256)": FunctionFragment;
    };
    encodeFunctionData(functionFragment: "getApproxHint", values: [BigNumberish, BigNumberish, BigNumberish]): string;
    decodeFunctionResult(functionFragment: "getApproxHint", data: BytesLike): Result;
    events: {};
}

export interface IHintHelpers extends BaseContract {
    contractName: "IHintHelpers";
    connect(signerOrProvider: Signer | Provider | string): this;
    attach(addressOrName: string): this;
    deployed(): Promise<this>;
    interface: IHintHelpersInterface;
    queryFilter<TEvent extends TypedEvent>(event: TypedEventFilter<TEvent>, fromBlockOrBlockhash?: string | number | undefined, toBlock?: string | number | undefined): Promise<Array<TEvent>>;
    listeners<TEvent extends TypedEvent>(eventFilter?: TypedEventFilter<TEvent>): Array<TypedListener<TEvent>>;
    listeners(eventName?: string): Array<Listener>;
    removeAllListeners<TEvent extends TypedEvent>(eventFilter: TypedEventFilter<TEvent>): this;
    removeAllListeners(eventName?: string): this;
    off: OnEvent<this>;
    on: OnEvent<this>;
    once: OnEvent<this>;
    removeListener: OnEvent<this>;
    functions: {
        getApproxHint(_CR: BigNumberish, _numTrials: BigNumberish, _inputRandomSeed: BigNumberish, overrides?: CallOverrides): Promise<[
            string,
            BigNumber,
            BigNumber
        ] & {
            hintAddress: string;
            diff: BigNumber;
            latestRandomSeed: BigNumber;
        }>;
    };
    getApproxHint(_CR: BigNumberish, _numTrials: BigNumberish, _inputRandomSeed: BigNumberish, overrides?: CallOverrides): Promise<[
        string,
        BigNumber,
        BigNumber
    ] & {
        hintAddress: string;
        diff: BigNumber;
        latestRandomSeed: BigNumber;
    }>;
    callStatic: {
        getApproxHint(_CR: BigNumberish, _numTrials: BigNumberish, _inputRandomSeed: BigNumberish, overrides?: CallOverrides): Promise<[
            string,
            BigNumber,
            BigNumber
        ] & {
            hintAddress: string;
            diff: BigNumber;
            latestRandomSeed: BigNumber;
        }>;
    };
    filters: {};
    estimateGas: {
        getApproxHint(_CR: BigNumberish, _numTrials: BigNumberish, _inputRandomSeed: BigNumberish, overrides?: CallOverrides): Promise<BigNumber>;
    };
    populateTransaction: {
        getApproxHint(_CR: BigNumberish, _numTrials: BigNumberish, _inputRandomSeed: BigNumberish, overrides?: CallOverrides): Promise<PopulatedTransaction>;
    };
}
//# sourceMappingURL=IHintHelpers.d.ts.map

我将如何使用它来使用类型记录和以太来实例化合同?我是否只需要创建一个实现这个接口的类?

谢谢

EN

回答 1

Ethereum用户

回答已采纳

发布于 2022-05-25 11:39:31

有两种方法可以做到这一点:

方法1:(不使用生成的工厂)

代码语言:javascript
运行
复制
import { IHintHelpers } from '../typechain-types'; 

const contract = new ethers.Contract(address, abi, signer) as IHintHelpers;

方法2:(在typechain中使用生成的工厂)

代码语言:javascript
运行
复制
import { IHintHelpers__factory } from '../typechain-types'; 

const contract = IHintHelpers__factory.connect(address, signer);
票数 6
EN
页面原文内容由Ethereum提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接:

https://ethereum.stackexchange.com/questions/128870

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