以太坊，swap交易，token的解析逻辑

Act 2025-05-18 10:58

解析weth，以Arbitrum上1inch 为例：https://arbiscan.io/tx/0x92497a4a84b62dfd5f8e9008997705ef36d129d31e0546059597660322f16c9f ``` from web3 import Web3 def get_transaction_logs(rpc_url, tx_hash, weth): # Initialize Web3 w3 = Web3(Web3.HTTPProvider(rpc_url)) try: # Get transaction receipt tx_receipt = w3.eth.get_transaction_receipt(tx_hash) if tx_receipt is None: return "Transaction not found or not yet mined" # Extract logs from the transaction receipt logs = tx_receipt['logs'] # Process and format logs formatted_logs = [] for log in logs: # Only process logs from the WETH if log['address'] == weth: # Convert the data to different formats data_bytes = log['data'] # Try to convert to integer if it represents a number data_int = int.from_bytes(data_bytes, 'big') formatted_log = { 'address': log['address'], 'data': { 'int': data_int, }, } formatted_logs.append(formatted_log) return formatted_logs except Exception as e: return f"Error getting transaction logs: {str(e)}" if __name__ == "__main__": tx_hash = "0x92497a4a84b62dfd5f8e9008997705ef36d129d31e0546059597660322f16c9f" # Replace with your transaction hash rpc_url = "xxx" # Replace with your RPC URL weth = '0x82aF49447D8a07e3bd95BD0d56f35241523fBab1' # Arbitrum WETH # Get transaction logs logs = get_transaction_logs(rpc_url, tx_hash, weth) # Print results if isinstance(logs, list): print(f"Found {len(logs)} logs:") for i, log in enumerate(logs, 1): print(f"\nLog #{i}:") print(f"Address: {log['address']}") print(f"Data: {log['data']}") else: print(logs) ``` Result: ``` Found 2 logs: Log #1: Address: 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 Data: {'int': 5617663515465542} Log #2: Address: 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1 Data: {'int': 5617663515465542} ```