去中心化交易所开发系统源码/DEX交易所

去中心化交易所（Decentralized Exchange，简称DEX）是一种允许用户在不依赖中心化交易所（如Coinbase、Binance等）的情况下进行加密货币交易的平台。以下是使用Python和web3.py库构建一个简单的去中心化交易所的示例代码。
This article is only for system development requirements reference

有系统开发需求可以＋kaifa873

from web3 import Web3

class DecentralizedExchange:
def init(self, web3: Web3):
self.web3 = web3

def create_order(self, maker_address: str, taker_address: str, maker_token: str, taker_token: str, amount: float, price: float):
    maker_token_contract = self.web3.eth.contract(address=maker_token, abi=self.web3.eth.contract(maker_token).abi)
    taker_token_contract = self.web3.eth.contract(address=taker_token, abi=self.web3.eth.contract(taker_token).abi)

    maker_token_decimals = maker_token_contract.functions.decimals().call()
    taker_token_decimals = taker_token_contract.functions.decimals().call()

    # Convert the amounts to the correct decimals
    amount = self.web3.fromWei(amount, 'ether') * (10 ** maker_token_decimals)
    price = self.web3.fromWei(price, 'ether') * (10 ** maker_token_decimals) / (10 ** taker_token_decimals)

    # Create the order
    order_txn = {
        'from': maker_address,
        'to': self.web3.eth.contract(address=self.web3.eth.contract(maker_token).address).address,
        'value': self.web3.toWei(0, 'ether'),
        'gas': self.web3.eth.estimate_gas({
            'from': maker_address,
            'to': self.web3.eth.contract(address=self.web3.eth.contract(maker_token).address).address,
            'value': self.web3.toWei(0, 'ether')
        }),
        'data': self.web3.eth.contract(address=self.web3.eth.contract(maker_token).address).encodeABI(
            function='createOrder',
            args=[
                taker_address,
                amount,
                price
            ]
        )
    }