監控未決交易

我將 Web3.py 與 Infura 一起使用

是否可以實時查看最後的待處理交易？並擁有有關它的所有資訊，例如誰發送它，誰接收它等等。

這個想法是當在記憶體池中看到特定交易時執行特定操作

是的，這是可能的。Web3.py 已經很好地實現了這一點。

w3 = Web3(HTTPProvider("http://provider.com"))
w3.geth.txpool.content()

這將為您提供包含字典queued和pending事務的字典。

   {
'pending': {
   '0x0216d5032f356960cd3749c31ab34eeff21b3395': {
   806: [{
       'blockHash': "0x0000000000000000000000000000000000000000000000000000000000000000",
       'blockNumber': None,
       'from': "0x0216d5032f356960cd3749c31ab34eeff21b3395",
       'gas': "0x5208",
       'gasPrice': "0xba43b7400",
       'hash': "0xaf953a2d01f55cfe080c0c94150a60105e8ac3d51153058a1f03dd239dd08586",
       'input': "0x",
       'nonce': "0x326",
       'to': "0x7f69a91a3cf4be60020fb58b893b7cbb65376db8",
       'transactionIndex': None,
       'value': "0x19a99f0cf456000"
   }]
   },
   '0x24d407e5a0b506e1cb2fae163100b5de01f5193c': {
   34: [{
       'blockHash': "0x0000000000000000000000000000000000000000000000000000000000000000",
       'blockNumber': None,
       'from': "0x24d407e5a0b506e1cb2fae163100b5de01f5193c",
       'gas': "0x44c72",
       'gasPrice': "0x4a817c800",
       'hash': "0xb5b8b853af32226755a65ba0602f7ed0e8be2211516153b75e9ed640a7d359fe",
       'input': "0xb61d27f600000000000000000000000024d407e5a0b506e1cb2fae163100b5de01f5193c00000000000000000000000000000000000000000000000053444835ec580000000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
       'nonce': "0x22",
       'to': "0x7320785200f74861b69c49e4ab32399a71b34f1a",
       'transactionIndex': None,
       'value': "0x0"
   }]
   }
},
'queued': {
   '0x976a3fc5d6f7d259ebfb4cc2ae75115475e9867c': {
   3: [{
       'blockHash': "0x0000000000000000000000000000000000000000000000000000000000000000",
       'blockNumber': None,
       'from': "0x976a3fc5d6f7d259ebfb4cc2ae75115475e9867c",
       'gas': "0x15f90",
       'gasPrice': "0x4a817c800",
       'hash': "0x57b30c59fc39a50e1cba90e3099286dfa5aaf60294a629240b5bbec6e2e66576",
       'input': "0x",
       'nonce': "0x3",
       'to': "0x346fb27de7e7370008f5da379f74dd49f5f2f80f",
       'transactionIndex': None,
       'value': "0x1f161421c8e0000"
   }]
   },
   '0x9b11bf0459b0c4b2f87f8cebca4cfc26f294b63a': {
   2: [{
       'blockHash': "0x0000000000000000000000000000000000000000000000000000000000000000",
       'blockNumber': None,
       'from': "0x9b11bf0459b0c4b2f87f8cebca4cfc26f294b63a",
       'gas': "0x15f90",
       'gasPrice': "0xba43b7400",
       'hash': "0x3a3c0698552eec2455ed3190eac3996feccc806970a4a056106deaf6ceb1e5e3",
       'input': "0x",
       'nonce': "0x2",
       'to': "0x24a461f25ee6a318bdef7f33de634a67bb67ac9d",
       'transactionIndex': None,
       'value': "0xebec21ee1da40000"
   }],
   6: [{
       'blockHash': "0x0000000000000000000000000000000000000000000000000000000000000000",
       'blockNumber': None,
       'from': "0x9b11bf0459b0c4b2f87f8cebca4cfc26f294b63a",
       'gas': "0x15f90",
       'gasPrice': "0x4a817c800",
       'hash': "0xbbcd1e45eae3b859203a04be7d6e1d7b03b222ec1d66dfcc8011dd39794b147e",
       'input': "0x",
       'nonce': "0x6",
       'to': "0x6368f3f8c2b42435d6c136757382e4a59436a681",
       'transactionIndex': None,
       'value': "0xf9a951af55470000"
   }, {
       'blockHash': "0x0000000000000000000000000000000000000000000000000000000000000000",
       'blockNumber': None,
       'from': "0x9b11bf0459b0c4b2f87f8cebca4cfc26f294b63a",
       'gas': "0x15f90",
       'gasPrice': "0x4a817c800",
       'hash': "0x60803251d43f072904dc3a2d6a084701cd35b4985790baaf8a8f76696041b272",
       'input': "0x",
       'nonce': "0x6",
       'to': "0x8db7b4e0ecb095fbd01dffa62010801296a9ac78",
       'transactionIndex': None,
       'value': "0xebe866f5f0a06000"
   }],
   }
}
}

文件：https ://web3py.readthedocs.io/en/latest/web3.geth.html?highlight=txpool#web3.geth.txpool.TxPool.content

這裡有 2 種方法，請在 Quicknode 的部落格中查看： https : //www.quicknode.com/guides/defi/how-to-access-ethereum-mempool 獲取 txpool.content 通常很慢，因為您必須獲取並等待所有內容，然後刪除重複的內容。最好的辦法是自己搭建節點，修改geth的程式碼，在節點端過濾交易。

引用自：https://ethereum.stackexchange.com/questions/94668