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web3.py 交易确认 topics解析 token_id

一个 transaction成功之后，通过 get_transaction_receipt 获取交易确认的情况
通过里面的logs topics参数能解析出 token_id
记录下，希望对你有用

tx_id = '0xaf825c3e4543ead8a548f98d5c8f99d658d0cec361c80872dbce8e2c64ca64db'
receipt = w3.eth.get_transaction_receipt(tx_id)

# 返回的是事件event的标识 
topics0 = receipt.logs[0].topics[0]
# from
topics1 = receipt.logs[0].topics[1]
# to
topics2 = receipt.logs[0].topics[2]
# token_id
topics3 = receipt.logs[0].topics[3]
# 结果如下
#0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
#0x0000000000000000000000000000000000000000000000000000000000000000
#0x000000000000000000000000b67b31bba03499c5ab840e28e8ad00129e30653c
#3