未获取每笔交易且无法解析数据

问题描述 投票：0回答：1

以下 JS 代码使用来自 

BNB Smart Chain
和 
QuickNode
的基本 
ethers.js v6.3.0
端点来解析发送到 
PancakeSwap
地址的所有交易数据。

const address = '0x18B2A687610328590Bc8F2e5fEdDe3b582A49cdA';
const interface = new ethers.Interface(abi);

provider.on("pending", async (tx) => {
    const txInfo = await provider.getTransaction(tx);

    if (txInfo !== null && txInfo['to'] === address) {
      let decodedData = interface.parseTransaction({ data: txInfo.data });

但是有两个与执行相关的问题：

  1. 提供商不会将所有交易交付给
    PancakeSwap
    。我已经通过自己将交易发送到 
    PancakeSwap
    地址来验证这一点。我唯一的猜测是，这可能是 
    QuickNode
    的一项高级功能，基本免费版本中不提供该功能。
  2. ethers.js
    接口并不总是解析交易的数据。大多数情况下，执行 
    parseTransaction
    函数会返回 
    null
    。

另外，这是用于获取接口的ABI

const abi = [{"inputs":[{"internalType":"address","name":"_oracleAddress","type":"address"},{"internalType":"address","name":"_adminAddress","type":"address"},{"internalType":"address","name":"_operatorAddress","type":"address"},{"internalType":"uint256","name":"_intervalSeconds","type":"uint256"},{"internalType":"uint256","name":"_bufferSeconds","type":"uint256"},{"internalType":"uint256","name":"_minBetAmount","type":"uint256"},{"internalType":"uint256","name":"_oracleUpdateAllowance","type":"uint256"},{"internalType":"uint256","name":"_treasuryFee","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"BetBear","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"BetBull","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Claim","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"roundId","type":"uint256"},{"indexed":false,"internalType":"int256","name":"price","type":"int256"}],"name":"EndRound","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"roundId","type":"uint256"},{"indexed":false,"internalType":"int256","name":"price","type":"int256"}],"name":"LockRound","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"admin","type":"address"}],"name":"NewAdminAddress","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"bufferSeconds","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"intervalSeconds","type":"uint256"}],"name":"NewBufferAndIntervalSeconds","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"minBetAmount","type":"uint256"}],"name":"NewMinBetAmount","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"operator","type":"address"}],"name":"NewOperatorAddress","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oracle","type":"address"}],"name":"NewOracle","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"oracleUpdateAllowance","type":"uint256"}],"name":"NewOracleUpdateAllowance","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"treasuryFee","type":"uint256"}],"name":"NewTreasuryFee","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"}],"name":"Pause","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"rewardBaseCalAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"rewardAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"treasuryAmount","type":"uint256"}],"name":"RewardsCalculated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"}],"name":"StartRound","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TokenRecovery","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TreasuryClaim","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"epoch","type":"uint256"}],"name":"Unpause","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"MAX_TREASURY_FEE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"adminAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"epoch","type":"uint256"}],"name":"betBear","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"epoch","type":"uint256"}],"name":"betBull","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"bufferSeconds","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"epochs","type":"uint256[]"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimTreasury","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"epoch","type":"uint256"},{"internalType":"address","name":"user","type":"address"}],"name":"claimable","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"currentEpoch","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"executeRound","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"genesisLockOnce","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"genesisLockRound","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"genesisStartOnce","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"genesisStartRound","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"cursor","type":"uint256"},{"internalType":"uint256","name":"size","type":"uint256"}],"name":"getUserRounds","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"},{"components":[{"internalType":"enum PancakePredictionV2.Position","name":"position","type":"uint8"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bool","name":"claimed","type":"bool"}],"internalType":"struct PancakePredictionV2.BetInfo[]","name":"","type":"tuple[]"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getUserRoundsLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"intervalSeconds","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"name":"ledger","outputs":[{"internalType":"enum PancakePredictionV2.Position","name":"position","type":"uint8"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bool","name":"claimed","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minBetAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"operatorAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"oracle","outputs":[{"internalType":"contract AggregatorV3Interface","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"oracleLatestRoundId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"oracleUpdateAllowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"recoverToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"epoch","type":"uint256"},{"internalType":"address","name":"user","type":"address"}],"name":"refundable","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"rounds","outputs":[{"internalType":"uint256","name":"epoch","type":"uint256"},{"internalType":"uint256","name":"startTimestamp","type":"uint256"},{"internalType":"uint256","name":"lockTimestamp","type":"uint256"},{"internalType":"uint256","name":"closeTimestamp","type":"uint256"},{"internalType":"int256","name":"lockPrice","type":"int256"},{"internalType":"int256","name":"closePrice","type":"int256"},{"internalType":"uint256","name":"lockOracleId","type":"uint256"},{"internalType":"uint256","name":"closeOracleId","type":"uint256"},{"internalType":"uint256","name":"totalAmount","type":"uint256"},{"internalType":"uint256","name":"bullAmount","type":"uint256"},{"internalType":"uint256","name":"bearAmount","type":"uint256"},{"internalType":"uint256","name":"rewardBaseCalAmount","type":"uint256"},{"internalType":"uint256","name":"rewardAmount","type":"uint256"},{"internalType":"bool","name":"oracleCalled","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_adminAddress","type":"address"}],"name":"setAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_bufferSeconds","type":"uint256"},{"internalType":"uint256","name":"_intervalSeconds","type":"uint256"}],"name":"setBufferAndIntervalSeconds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_minBetAmount","type":"uint256"}],"name":"setMinBetAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_operatorAddress","type":"address"}],"name":"setOperator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_oracle","type":"address"}],"name":"setOracle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_oracleUpdateAllowance","type":"uint256"}],"name":"setOracleUpdateAllowance","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_treasuryFee","type":"uint256"}],"name":"setTreasuryFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"treasuryAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"treasuryFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"userRounds","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]

任何指示将不胜感激，提前谢谢您。

ethereum abi ethers.js binance-smart-chain pancakeswap
1个回答
0
投票

提供商不会将所有交易交付至 

PancakeSwap

provider.on("pending", async (tx) => {


pending
钩子检索提供者节点在包含在块中之前知道的所有交易。如果节点了解到该交易是新区块的一部分（但不是更早），则该交易不会包含在 pending
 钩子中。

EVM 待处理事务传播的设计方式是广播节点将其发送到其邻居节点。每个邻居都会检查它是否已经知道该事务。如果节点尚不知道该交易，则该节点将该交易保存在其本地内存池（=待处理交易的数据库）中，并向其他邻居广播，...

但也有可能交易不会作为“待处理交易传播”的一部分到达节点，而仅作为新块的一部分。在区块时间较快的链上，这种情况更有可能发生，因为在待处理的交易包含在区块中之前，根本没有足够的时间将其传播到网络中的所有节点。

ethers.js

接口并不总是解析交易的数据。


来自
文档页面
：



如果找不到匹配的函数，则返回null。


从我在 parseTransaction 
source
 中看到的情况来看，它可能返回 
null 的原因之一是函数选择器（交易 data
 字段的前 4 个字节）与 ABI 中的任何函数都不匹配，当参数长度不匹配时，或者一般当
ethers.js
无法解析交易时。没有具体的交易例子很难说。

    



      

      
    

  

  

    
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