[区块链] 发送一笔交易

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[区块链]发送一笔交易

根据交易哈希，到去中心化区块浏览器即可查询到这笔交易。
在这里插入图片描述

from web3 import Web3
from web3.middleware import geth_poa_middleware


web3 = Web3(Web3.HTTPProvider('https://bsc-dataseed1.binance.org:443'))
web3.middleware_onion.inject(geth_poa_middleware, layer=0)
from_ = 'from_'
from_key = 'from_key'
to_ = 'to_'

# 得到随机数。防止一个人发送交易两次
nonce = web3.eth.getTransactionCount(from_)

# 构建交易信息
tx = {
    'nonce': nonce,
    'to': to,
    'value': web3.toWei(0.001, 'ether'),
    'gas': 21000,
    'gasPrice': web3.toWei('5', 'gwei')
}

# 签名交易
signed_tx = web3.eth.account.sign_transaction(tx, from_key)

# 发送交易
tx_hash = web3.eth.sendRawTransaction(signed_tx.rawTransaction)

# 获取交易哈希
print(web3.toHex(tx_hash))

交易代币
在这里插入图片描述

from web3 import Web3
from json import loads
from web3.middleware import geth_poa_middleware

web3 = Web3(Web3.HTTPProvider('https://bsc-dataseed1.binance.org:443'))
web3.middleware_onion.inject(geth_poa_middleware, layer=0)
from_ = 'from_'
from_key = 'from_key'
to_ = 'to_'

# 得到随机数。防止一个人发送交易两次
nonce = web3.eth.getTransactionCount(from_)
ABI = loads('[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"minTokensBeforeSwap","type":"uint256"}],"name":"MinTokensBeforeSwapUpdated","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":false,"internalType":"uint256","name":"tokensSwapped","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"ethReceived","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"tokensIntoLiqudity","type":"uint256"}],"name":"SwapAndLiquify","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"enabled","type":"bool"}],"name":"SwapAndLiquifyEnabledUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"_liquidityFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_maxTxAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_taxFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tAmount","type":"uint256"}],"name":"deliver","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"excludeFromFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"excludeFromReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"geUnlockTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"includeInFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"includeInReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"isExcludedFromFee","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"isExcludedFromReward","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"time","type":"uint256"}],"name":"lock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tAmount","type":"uint256"},{"internalType":"bool","name":"deductTransferFee","type":"bool"}],"name":"reflectionFromToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"liquidityFee","type":"uint256"}],"name":"setLiquidityFeePercent","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"maxTxPercent","type":"uint256"}],"name":"setMaxTxPercent","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_enabled","type":"bool"}],"name":"setSwapAndLiquifyEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"taxFee","type":"uint256"}],"name":"setTaxFeePercent","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"swapAndLiquifyEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"rAmount","type":"uint256"}],"name":"tokenFromReflection","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalFees","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"uniswapV2Pair","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"uniswapV2Router","outputs":[{"internalType":"contract IUniswapV2Router02","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]')
web3 = Web3(Web3.HTTPProvider('https://bsc-dataseed1.binance.org:443'))
web3.middleware_onion.inject(geth_poa_middleware, layer=0)
# 构建合约
contract = web3.eth.contract(address=web3.toChecksumAddress('0x4afc8c2be6a0783ea16e16066fde140d15979296'), abi=ABI)
# 构建交易信息
tx = {
    'nonce': nonce,
    'chainId': 56,
    'gas': 154806,
    'gasPrice': web3.toWei('5', 'gwei')
}
tx = contract.functions.transfer(to_, 100000).buildTransaction(tx)
signed_tx = web3.eth.account.sign_transaction(tx, from_key)

# # 签名交易
signed_tx = web3.eth.account.sign_transaction(tx, from_key)

# # 发送交易
tx_hash = web3.eth.sendRawTransaction(signed_tx.rawTransaction)

# # 获取交易哈希
print(web3.toHex(tx_hash))