bsc, heco类ETH链上如何通过web3.js获得一个代币交易对的兑换价格 | 登链社区

15 bsc, heco类ETH链上如何通过web3.js获得一个代币交易对的兑换价格

bsc, heco类ETH链上如何通过web3.js获得一个代币交易对的兑换价格

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最佳答案 2021-10-25 15:19

获取两个交易对的储备量： getReserves

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Tiny熊

擅长：智能合约,以太坊 | 采纳率 33% | 回答于 2021-10-24 09:11

默认排序时间排序

其它 2 个回答

Tiny熊 2021-10-22 17:12

　擅长：智能合约,以太坊

carvin 2021-10-22 17:19

您好，能再具体一点吗，比如这个是pancake factory合约的部分代码，是从这里面找吗？

```
interface IPancakeFactory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

function createPair(address tokenA, address tokenB) external returns (address pair);

function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}

interface IPancakePair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);

function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

event Mint(address indexed sender, uint amount0, uint amount1);
    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

function MINIMUM_LIQUIDITY() external pure returns (uint);
    function factory() external view returns (address);
    function token0() external view returns (address);
    function token1() external view returns (address);
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
    function price0CumulativeLast() external view returns (uint);
    function price1CumulativeLast() external view returns (uint);
    function kLast() external view returns (uint);

function mint(address to) external returns (uint liquidity);
    function burn(address to) external returns (uint amount0, uint amount1);
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function skim(address to) external;
    function sync() external;

function initialize(address, address) external;
}

```